FINAL DRAFT UGANDA 
STANDARD  
  FDUS EAS 468 
First  Edition  
2013-mm-dd 
 
 Reference number  
FDUS EAS 468: 2013 
© UNBS 201 3 
  
Pre-painted metal coat ed steel sheets and coils — Specification  
 FDUS EAS 468: 2013 
ii                © UNBS  2013 - All rights reserved  
 Compliance with this standard does not, of itself confer immunity from legal obligations  
A Uganda Standard does not purport to include all necessary provisions of a contract. User s are 
responsible for its correct application  
© UNBS 20 13 
All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilised in any 
form or by any means, electronic or mechanical, including photocopying and microfilm , without prior written 
permission from UNBS.  
Requests for permission to reproduce this document should be addressed to  
The Executive Director  
Uganda National Bureau of Standards  
P.O. Box 6329  
Kampala  
Uganda  
Tel: 256 41 505 995  
Fax: 256 41 286 123  
E-mail: unbs@infocom.co.ug  
Web: www.unbs.go.ug  
 FDUS EAS 468: 2013 
© UNBS  2013 - All rights reserved                 iii National foreword  
Uganda National Bureau of Standards (UNBS) is a parastatal under the Ministry of Tourism, Trade and 
Industry established under Cap 327, of the Laws of Ugan da. UNBS is mandated to co -ordinate the elaboration 
of standards and is  
(a) a member of International Organisation for Standardisation (ISO) and  
(b) a contact point for the WHO/FAO Codex Alimentarius Commission on Food Standards, and  
(c) the National Enquiry Point on TBT/SPS Agreements of the World Trade Organisation (WTO).  
The work of preparing Uganda Standards is carried out through Technical Committees. A Technical 
Committee is established to deliberate on standards in a given field or area and consists of repres entatives of 
consumers, traders, academicians, manufacturers, government and other stakeholders.  
Draft Uganda Standards adopted by the Technical Committee are widely circulated to stakeholders and the 
general public for comments. The committee reviews the comments before recommending the draft standards 
for approval and declaration as Uganda Standards by the National Standards Council.  
This Final Draft Uganda Standard, FDUS EAS 468: 2013, Pre-painted metal coated steel sheets and coils — 
Specification , is identical with  and has been reproduced from an East African  Standard , EAS 468: 2013 , Pre-
painted metal coated steel sheets and coils — Specification , and is being proposed for adoption as a Uganda 
Standard.  
Wherever the words, “ East African  Standard" appear, they should be replaced by "Uganda Standard."  
 
   FDEAS 468: 2013  
ICS 77.140  
© EA C 2013                                                                                                                         Second  Edition 2013   
 
FINAL DRAFT EAST AFRICAN STANDARD  
Pre-painted metal coated steel sheets and coils — Specification  
EAST AFRICAN COMMUNITY  FDEAS 468: 2013  
ii © EAC 2013  – All rights reserved  
 Copyright notice  
This EAC document is copyright -protected by EAC. While the reproduction of this document by 
participants in the EAC s tandards development process is permitted without prior permission from EAC, 
neither this document nor any extract from it may be reproduced, stored or transmitted in any form for 
any other purpose without prior written permission from EAC.  
Requests for pe rmission to reproduce this document for the purpose of selling it should be addressed 
as shown below or to EAC’s member body in the country of the requester:  
© East African Community  2013  — All rights reserved  
East African Community   
P.O.Box 1096  
Arusha  
Tanzania  
Tel: 255 27 2504253/8  
Fax: 255 27 2504481/2504255  
E-mail: eac@eachq.org  
       Web: www.eac -quality.net  
Reproduction for sales purposes may be subject to royalty payments or a licensing agreement.  
Violators may be persecuted  FDEAS 468 : 2013  
© EAC 2013  – All rights reserved  iii 
 Contents  Page 
Foreword  ................................ ................................ ................................ ................................ ............................  iv 
1 Scope  ................................ ................................ ................................ ................................ ......................  1 
2 Normati ve references  ................................ ................................ ................................ ............................  1 
3 Terms and definitions  ................................ ................................ ................................ ...........................  1 
4 Substrate  ................................ ................................ ................................ ................................ ................  2 
5 Classi fication and symbol  ................................ ................................ ................................ ....................  3 
5.1 Classification of durability of paint coatings  ................................ ................................ .....................  3 
5.2 Classification of applications  ................................ ................................ ................................ ...............  3 
6 Paint coating durability  ................................ ................................ ................................ .........................  4 
7 Surface protective treatments  ................................ ................................ ................................ ..............  5 
8 Physical proper ties of paint coatings  ................................ ................................ ................................ . 5 
9 Dimensions  ................................ ................................ ................................ ................................ ............  6 
10 Paint coating (dry film thickness)  ................................ ................................ ................................ ........  6 
10.1  Primer  ................................ ................................ ................................ ................................ .....................  6 
10.2  Washcoat  ................................ ................................ ................................ ................................ ................  6 
10.3  Topcoat  ................................ ................................ ................................ ................................ ...................  7 
11 Shapes  ................................ ................................ ................................ ................................ ....................  7 
11.1  Camber  ................................ ................................ ................................ ................................ ...................  7 
11.2  Deviation from squareness  ................................ ................................ ................................ ..................  7 
11.3  Flatness  ................................ ................................ ................................ ................................ ..................  7 
12 Appearance  ................................ ................................ ................................ ................................ ............  8 
13 Tests  ................................ ................................ ................................ ................................ .......................  8 
13.1  General  ................................ ................................ ................................ ................................ ...................  8 
13.2  Endurance tests for coatings  ................................ ................................ ................................ ...............  8 
13.2.1  Salt spray test  ................................ ................................ ................................ ................................ ........  8 
13.2.2  Accelerate d weathering test  ................................ ................................ ................................ .................  8 
13.3  Tests for physical properties of paint coating  ................................ ................................ ...................  8 
13.3.1  Sampling of test specimens  ................................ ................................ ................................ .................  8 
13.3.2  Bend test  ................................ ................................ ................................ ................................ ................  9 
13.3.3  Pencil hardness test ................................ ................................ ................................ ............................  10 
13.3.4  Impact test  ................................ ................................ ................................ ................................ ............  11 
13.3.5  Cross -scoring test  ................................ ................................ ................................ ...............................  12 
13.3.6  Abrasion (MEK) test  ................................ ................................ ................................ ............................  12 
13.4  Cautions f or testing  ................................ ................................ ................................ .............................  13 
14 Inspection  ................................ ................................ ................................ ................................ .............  13 
15 Marking  ................................ ................................ ................................ ................................ .................  13 
15.1  Reverse side m arking  ................................ ................................ ................................ .........................  13 
15.2  Package marking  ................................ ................................ ................................ ................................ . 14 
16 Storage, transportation and fabrication  ................................ ................................ ............................  14 
Annex A (informative)   Examples of indications for types of sheets and coils  ................................ .........  17 
Annex B (informative)   Ordering information  ................................ ................................ ................................  18 
 FDEAS 468: 2013  
iv © EAC 2013  – All rights reserved  
 Foreword  
Develop ment of the East African Standards has been necessitated by the need for harmonizing requirements 
governing quality of products and services in the East African Community. It is envisaged that through 
harmonized standardization, trade barriers that are enc ountered when goods and services are exchanged 
within the Community will be removed.  
In order to achieve this objective, the Community established an East African Standards Committee mandated 
to develop and issue East African Standards.   
The Committee is composed of representatives of the National Standards Bodies in Partner States, together 
with the representatives from the private sectors and consumer organizations. Draft East African Standards 
are circulated to stakeholders through the National Standard s Bodies in the Partner States. The comments 
received are discussed and incorporated before finalization of standards, in accordance with the procedures 
of the Community.  
East African Standards are subject to review, to keep pace with technological advance s. Users of the East 
African Standards are therefore expected to ensure that they always have the latest versions of the standards 
they are implementing .  
FDEAS 468 was prepared by Technical Committee EASC/TC 035, Steel and steel products.  
This second edit ion cancels and replaces the first edition (EAS  468:2008 ) which has been technically revised.  
 FINAL DRAFT EAST AFRICAN STANDARD  FDEAS 468: 2013  
 
© EAC 2013  – All rights reserved  1 
 Pre-painted metal coated steel sheets and coils — Specification  
1 Scope  
This Final Draft East African Standard specifies requirements for the pre -painted hot -dip metal -coated steel 
sheets and coils for exterior use . 
2 Normative references  
The following referenced documents are indispensable for the application of this document. For dated 
references, only the edition cited applies. For undated references, the late st edition of the referenced 
document (including any amendments) applies.  
ASTM D 4956, Standard specification for retroreflective sheeting for traffic control  
EAS 11, Galvanized plain and corrugated iron sheets — Specification  
EAS 85  -15, Paints, varnishes , lacquers and enamels — Methods of test — Part 15: Determination of 
resistance to neutral salt spray (Corrosion test)  
EAS 410, Hot-dip aluminium -zinc coated plain and corrugated steel sheets — Specification  
ISO 15184, Paints and varnishes — Determination of film hardness by pencil test  
3 Terms and definitions  
For the purposes of this standard, the following terms and definitions shall  apply . 
3.1 
bottom side  
side of pre -painted sheet opposite the exposed weathering side  
3.2 
top (face) side  
side of the pre -painted sheet, which is exposed to weathering  
3.3 
coil coating  
continuous process by which paint and other coatings are applied and baked onto a metal coated flat steel 
sheet  
3.4 
roll former  
apparatus that forms a continuous strip of metal into various sha pes by a series of contoured steel rolls  
3.5 
paint  
organic liquid generally pigmented, which is converted to a solid film by baking  FDEAS 468: 2013  
2 © EAC 2013  – All rights reserved  
 3.6 
topcoat  
paint film on the surface which is exposed to weathering  
NOTE  The topcoat provides colour and durability and als o acts as protection against atmospheric corrosion. Different 
topcoats are selected based on the performance or appearance requirements desired.  
3.7 
primer  
first complete layer of paint of a coating system applied to an uncoated surface; the type of primer  varies with 
the type of surface and its condition, the intended purpose, and the coating system being used  
3.8 
washcoat  
thin organic coating applied to the back or unexposed side of the pre -painted sheet (also known as a 
backercoat)  
NOTE  The purpose of th e wash coat is to provide protection against damage to the top -side coating during shipment 
and storage and also provide some additional durability to the unexposed side during the service life of the product.  
3.9 
chalking  
formation on a pigmented coating  of a friable powder evolved from the film itself at or just beneath the surface  
3.10 
fade 
loss in colour intensity experienced by pigmented organic coatings over time, generally due to the effect of 
ultraviolet radiation  
3.11 
gloss  
lustre, shininess or re flecting ability of a surface  
3.12 
sheets  
broad, thin, mass or pieces of metal including flat and profiled  
3.13 
substrate  
base material upon the surface of which an adhesive -containing substance is spread for coating  
NOTE  The substrate is available in sev eral different steel sheet qualities and with different metallic coatings as 
specified in clause 4, depending on the requirements of the purchaser. For the purposes of this standard , substrate refers 
to the steel sheet and metallic coating.  
3.14 
exterior  surface   
any pre -painted metal surface exposed to weathering including and not limited to roofing and cladding  
4 Substrate  
The substrate shall conform to all the requirements of EAS 11 and EAS 410 as per appropriate specification 
for the quality ordered.  FDEAS 468 : 2013  
© EAC 2013  – All rights reserved  3 
 5 Classification and symbol  
5.1 Classification of durability of paint coatings  
5.1.1  The durability of paint coatings shall be classified into three classes, and their symbols shall be as 
given in Table 1.  
Table 1 — Classification of durability of paint coat ings and designations  
 
Classification  Symbol  Durability  
Class 1  1 Two or more coats having durability as specified in Table 3  
Class 2  2 Two coats having durability as specified in Table 3  
Class 3  3 One coat having durability as specified in Table 3  
NOT E For sheets and coils for which the quality is guaranteed for both sides, the classes of paint coating durability 
which have differences between the face side and the reverse side may be altered by agreement between the purchaser 
and the manufacturer.  
 
5.1.2 The classes of paint coating, durability for the face side and the reverse side shall be expressed in 2 -
digit figures consisting of a combination of the designation of durability for the individual sides.  
Example:   
 
 
 
 
 
 
 
 
 
 
 
 
5.1.3  For both -side pa int coating for which the quality is guaranteed for the face only, the non -guaranteed 
side shall be expressed by the digit 0.  
Example:  
  
 
 
 
 
 
5.1.4   The term “guarantee” mentioned shall mean that the product is in compliance with the quality 
requirements specified in Clauses 6, 8, 10 and 12.  
5.2 Classification of applications  
5.2.1  Sheets and coils shall be classified into eight  types, and their classified symbols shall be as given in 
Table 2.  3   2 
Reverse side, Class 2  
Face side, Class 3  
Reverse side, Class 3  
Face side, Class 3  
 
 
 3        3      
Reverse side, not guaranteed  
Face side, Class  2       0  FDEAS 468: 2013  
4 © EAC 2013  – All rights reserved  
 Table 2 — Classification of sheets and coils  
Classified symbol  
 Nominal thickness (base coated 
metal )  
mm Application  Classified symbol 
of base metal  
CGCC 0.25 ≤ x ≤ 1.6  Commercial soft  SGCC 
CGCH 0.25 ≤ x ≤ 1.0 Commercial hard  SGCH 
CGCD 1 0.40 ≤ x ≤. 1.6 Drawing  SGCD 1 
CGC 340 0.25 ≤ x ≤ 1.6 
Structural  SGC 340 
CGC 400 0.25 ≤ x ≤. 1.6 SGC 400 
CGC 440 0.25 ≤ x ≤ 1.6 SGC 440 
CGC 490 0.25 ≤ x ≤ 1.6 SGC 490 
CGC 570 0.25 ≤ x ≤. 1.6 SGC 570 
NOTE 1  G refers to the type of metal coating as described in EAS 11 and EAS 410 . 
NOTE 2  Nominal thickness other than thos e listed in the above table may be decided as agreed upon 
between the purchaser and the manufacturer.  
NOTE 3  Examples of indications for types of sheets and coils are given in Annex A.  
 
5.2.2  For the type of coating and the coating mass on the base coated  metal for paint coating , EAS  11 and 
EAS 410 shall apply.  
5.2.3 Coating systems supplied under this standard  shall consist of primer coat covered by various types 
and thicknesses of topcoats. The combination of primer and topcoat shall be classed as either  a two coat thin 
film system or as a two coat (or more) thick film system. The organic coating shall consist of a primer and a 
topcoat on the top (exposed) side and wash coat on the bottom (unexposed) side.  
5.2.4  In the case of sheets and coils for roofing  and architectural sidings the symbol R for roofing and the 
symbol A for architectural siding shall be suffixed to the classified symbols given in Table 2  
5.2.5  For sheets and coils subjected to corrugating, the symbol W and the shape symbol for corrugate d 
sheets shall be suffixed to the classified symbols given in Table 2.  
5.2.6  For corrugation, the commercial soft and the commercial hard qualities listed in Table 2 shall be used.  
5.2.7  For roofing and architectural siding uses ( exterior exposed building products), Class 2 or higher in the 
classification of paint coating durability shall be applied.  
5.2.8  Sheets and coils for roofing for which the quality is guaranteed for one side only, the washcoat shall 
be colored grey. 
6 Paint coating durability  
6.1 Sheets and coils shall be subjected to the durability test given in Table 3.  The salt spray test shall be 
carried out in accordance with 13.2.1 and 13.4, and no defects, except for slight blistering and rust on the test 
piece, shall be found on the test pie ce as a result of this test having been continued for the duration of time 
specified in Table 3.  FDEAS 468 : 2013  
© EAC 2013  – All rights reserved  5 
 Table 3 — Durability test (salt spray and weathering test)  
Coating class  Gloss  Colo ur DFT(primer)  Minimum  
duration of salt 
spray test  Minimun  duration 
accelera ted 
weathering test  
Class 1   30 % loss  Delta E of  4  4 µ - 6 µ 200 h  500 h 
Class 2   35 % loss  Delta E of 6  4 µ - 6 µ 500 h  1 000 h 
Class 3   40 % loss  Delta E of 8  Not 
applicable  2 000 h  1 500 h 
NOTE  Delta E is a single number that represents the “dist ance” between two colours  
 
6.2 For class 3 in the classification of paint coating durability the symbol indicating a coating mass of Z 27 
(equivalent for other coatings) or more shall be applied to the base metal for paint coating.  
6.3 When sheets and co ils of Class 3 in the durability classification are subjected to the dew -cycle type 
accelerated weathering test in accordance with the provision of 13.2.2 and 13.4, they shall not show 
substantial discoloration, fading or substantial chalking as a result o f the test having been continued for the 
duration of time specified in Table 3 (Delta E minimum) . 
7 Surface protective treatments  
For protective treatments after painting when applied on the surface of sheets and coils, the types and 
symbols shall be given in Table 4.  
Table 4 — Classification of surface protective treatments and their symbols  
Classification of surface protective treats  Symbol  
Protective films  P 
Wax application  T 
 
8 Physical properties of paint coatings  
8.1 After being tested for items mar ked with “X” in Table 5 in accordance with 13.3 and 13.4, sheets and coils 
shall, by visual inspection, be free from the defects given in Table 5.  FDEAS 468: 2013  
6 © EAC 2013  – All rights reserved  
 Table 5 — Physical properties  of paint coatings  
 
Characteristics  Commercial 
hard  
(CGCH); 
Structural 
(CGC 570) Commercial, 
Drawing ( CGCC, 
CGCD 1) 
Structural  
(CGC 
340,400,440,490) Requirements  Test method  
Bending 
adhesion  – X No peeling on the outer surface of the 
bent portion not less than 7 mm apart 
from either side edge of the test piece  13.3.2 (Bend test)  
Paint film  X X No scratch marks on the paint film  13.3.3 (pencil 
hardness test)  
Impact 
resistance  – X No peeling  13.3.4 (Impact test)  
Adhesion  X – No irregularities on the tested portion  13.3.5 (Cross scoring 
test) 
Flexibility  X X No peeling  Flexibilit y test  
Abrasion  X X No burnished appearance in rubbed area 
after 100 double rubs on both topcoat 
and wash coat.  13.3.6 (Abrasion 
[MEK] test)  
 
8.2 Test items for sheets and coils for roofing, architectural siding, and corrugation shall be in accordance 
with Table 5.  
8.3 Paint adhesion and peeling shall be checked by applying standard filament tape.  
9 Dimensions  
9.1 The dimensions of sheets and coils shall be expressed  in millimetres  
9.2 The standard nominal  thickness of sheets and coils shall be in accor dance with EAS 11 and EAS 410.  
10 Paint coating (dry film thickness)  
10.1 Primer  
The purpose of the primer is to serve as the bond between the substrate and the topcoat and to offer added 
corrosion protection for the entire system. The primer shall be comp atible with the topcoat in order to ensure 
optimum properties of the coating system. For this reason the primer is usually not specified by the purchaser 
but it is generally selected by the coating supplier or pre -painted sheet producer for optimum compati bility.  
For building products, primer thickness shall be 5 µm with tolerance of ± 1 µm. High performance primers with 
films as thick as 75 µm with tolerance  of ± 8 µm may be specified.  
10.2 Washcoat  
For building products, washcoat thickness shall be 8 µm with tolerance of ± 1 µm.  FDEAS 468 : 2013  
© EAC 2013  – All rights reserved  7 
 10.3 Topcoat  
10.3.1  Different topcoats shall be selected based on the performance or appearance requirements desired. 
For building products, topcoat thickness shall be 15  µm with tolerance of ± 5 µm. High-performance topcoats 
may be specified. Other upgraded systems may specify the application of two or more layers of topcoats.  
10.3.2  The topcoat shall be applied for the exposed side of the sheet. However the unexposed side may be 
ordered with the same coating as the topside.  
10.3.3 A washcoat or backercoat shall be applied to the bottom side.  
NOTE  The selection of a topcoat depends on the performance parameters required such as chalking and fading, plus 
the corrosion resistance needed, which shall take into account the severity o f the service environment.  
11 Shapes  
11.1 Camber  
Maximum camber values for sheets and coils shall be as given in Table 6. 
Table 6 — Maximum camber values  
Dimensions in millimetres  
Width  Length  
Flat sheet / Coil 
≤2000  ˃ 2 000  
≤ 630 4 4 in any 2  000 of length  
˃ 630  2 2 in any 2  000 of length  
 
11.2 Deviation from squareness  
Deviations from squareness for flat sheets shall be expressed by A/W x 100 (%) as shown in Figure 1 and 
shall not exceed 0.3 %.  
 
Figure 1 — Deviations from squareness for flat shee ts 
11.3 Flatness  
11.3.1  Flatness for sheets shall be as given in Table 7. 
 
Table 7 — Flatness  
Dimensions in millimetres  
FDEAS 468: 2013  
8 © EAC 2013  – All rights reserved  
  
Width Classification , max.  
Bow  Edge wave  Center buckle  
≤1 000 12 8 6 
1 000 ˂ x ≤1 250 15 10 8 
 
11.3.2  Flatness of sheets shall be determined as they are placed on a surface plate. The value shall be 
obtained by subtracting the sheet thickness from maximum deviation from the horizontal flat surface and the 
flatness shall be applied to the upper surface of the sheet.  
12 Appearance  
Shee ts and coils shall be free from defects detrimental to practical use. However, in the case of coils, they 
may contain some abnormal imperfections, including welds and floating.  
13 Tests  
13.1 General  
The properties of the substrate and the organic coating system, combined with the method of forming, 
determine the life expectancy and general appearance of the final product. Each coating system has different 
qualities in regard to gloss, flexibility, fading, chalking, and resistance to cracking at bends, abra sion 
resistance, dirt retention, and resistance to varying atmospheric conditions. All of these factors should be 
considered in any end application. The test methods used to measure some of these parameters shall be in 
accordance with EAS 11 and EAS 410 .  
13.2 Endurance tests for coatings  
13.2.1  Salt spray test  
The salt spray test shall be done as follows:  
a) a test piece shall be 50 mm or more in width and 100 mm or more in length ; and  
b) the testing method shall comply with EAS 85 -15. 
13.2.2  Accelerated weather ing test  
The accelerated weathering test shall be as follows.  
a) a test piece shall be 50 mm or more in width and 100 mm  or more  in length ; and  
b) the testing method shall comply with the accelerated weathering test specified in ASTM D 4956.  
13.3 Tests for physi cal properties of paint coating  
13.3.1  Sampling of test specimens  
For corrugated sheets, test specimens shall be taken from flat sheets prior to corrugation.  
Specimens shall be taken from products of the same quality, dimensions, coating mass, and color  FDEAS 468 : 2013  
© EAC 2013  – All rights reserved  9 
 The sampling of test specimens for the T -bend, pencil hardness, impact, cross -scoring and abrasion (MEK) 
tests shall comply with the following requirements : 
a) for continuously paint -coated coils or cut length from continuously paint -coated coils, one test 
specimen shall be taken from each 50 t or its fraction ; 
b) for sheets manufactured by paint -coating base metal cut to a specified length, one test specimen shall 
be taken from not more than 3  000 sheets ; 
c) apply zinc coating weight test for galvanized plain substr ate; 
d) apply alumin ium zinc and silicon weight test for the 55  % alumin ium zinc substrate ; and  
e) the testing method shall comply with the accelerated weathering test specified in ASTM D 4956.  
13.3.2  Bend test  
The bend test shall be as follows:  
a) The test piece shall have a width of 75  mm to 125 mm and a length suited for the test.  Unless 
otherwise specified, one test piece shall be cut out of each test specimen paralleled to the rolling 
direction of the base metal.  
b) By referring to the internal  spacing of bend s hown in Table 8, the test piece shall be bent manually as 
shown in Figure 2  
 
 
Figure 2 — Direction of bend test  
c) The bend test shall be applied to the symbols indicating coating masses of Z 27 ( equivalent for other 
coatings) and  under. For sheets and coils u sing an alloyed type as base metal for paint coating, the 
above shall be used as reference only.  
d) For sheets and coils for roofing, architectural siding, and corrugation, the internal spacing of bend 
shall be in accordanc e with that for, the relevant classi fied symbol in Table 8. 
FDEAS 468: 2013  
10 © EAC 2013  – All rights reserved  
 Table 8 — Internal spacing of bend  
Classified symbol  Bend angle  Nominal thickness , 
mm Internal spacing of bend  
CGCC 180 ≤ 0.40 2 sheets of nominal thickness  
CGCH – 0.40, ˂ x ≤ 1.6 3 sheets of nominal thickness  
CGCD 1 180 0.40 ≤ x ≤  1.6 2 sheets of nominal thickness  
0.40 ˂ x ≤ 0.40 3 sheets of nominal thickness  
CGC 400 180 ≤. 0.40  3 sheets of nominal thickness  
0.40 ˂ x ≤ 1.6 3 sheets of nominal thickness  
CGC 440 180 ≤ 0.40 4 sheets of nominal thickness  
0.40 ˂ x ≤ 1.6 5 sheets of nominal thickness  
 
13.3.3  Pencil hardness test  
The pencil ha rdness test shall be as follows:  
a) a pencil having the hardness symbols gi ven in Table 9 and meeting the requirements of ISO 15184 
shall be used ; 
Table 9 — Symbols for pencil hardness  
Durability classification  Hardness symbol  
Class 1  H 
Class 2  H 
Class 3  F 
 
b) the pencil shall be sharpened so as to expose about 3 mm of lead. Whi le being held at right angles to 
an abrasive paper of No. 400 or finer which has been laid on a hard, flat surface, the point of the lead 
shall be made to draw a continuous circle gently and thus be ground down so as to obtain a flat 
surface with sharp edg es at the tip. The tip of the lead shall be ground flat for each test ; 
c) holding the prepared pencil at about 45 º to the surface of the test specimen, straight lines shall be 
drawn with it in the direction shown Figure 3, with the load being applied of about  10 N ; and  
d) the lines shall be not les s than 20 mm in length and not less than three in number.  
 
 
Figure 3 — Pencil hardness testing method  
FDEAS 468 : 2013  
© EAC 2013  – All rights reserved  11 
 13.3.4  Impact test  
The impact test shall be as follows:  
a) a weight shall be dropped onto a test face from a Du Point t ype impact tester, as shown in Figure 4 ; 
b) the mass of the weight shall be 500  g  1 g, and the radius of the impact point shall be 6.35  mm ± 
0.03 mm ; and  
c) the weight shall be dropped from a height of 500 mm above the test piece.  
 FDEAS 468: 2013  
12 © EAC 2013  – All rights reserved  
  
Figure 4 — Du Point Impact -deformation tester  
13.3.5  Cross -scoring test  
The scoring test shall be as follows:  
a) straight lines shall be scored with a safety razor blade or other pointed objects so as to reach the 
surface of the coating through the paint film and to form squares ; and  
b) eleven straight lines shall be scored crosswise at right angles, at intervals of 1 mm.  
13.3.6  Abrasion (MEK) test  
13.3.6.1  Apparatus  
The following apparatus and materials shall be used for the abrasion (MEK) test : 
a) test piece (100 mm x 200 mm) ; 
b) MEK (Methyl  Ethyl Ketone) ; 
c) cheese cloth ; 
d) squeeze bottle ; and 
e) solvent resistant gloves . 
13.3.6.2  Procedure  
The abrasion test shall be done as follows:  
FDEAS 468 : 2013  
© EAC 2013  – All rights reserved  13 
 a) select an area of the coated surface to be tested. Clean the area with tap water and a dry cloth. Mark 
a section of t he cleaned area, measuring 150 mm by 25 mm with a solvent resistant marker, in which 
to perform the MEK double rubs ; and  
b) fold a 300 mm square piece of cheese cloth so that the thickness is doubled and saturate it until 
dripping wet with MEK. Place an index  finger in the center of the cheese cloth and gather the 
remaining cloth. With the index finger at a 45 ° angle to the surface, rub with moderate pressure over 
the marked area. Do not allow more than 10 s to elapse between wetting the cloth and beginning to  
rub the coating. Wet the cloth as often as needed without lifting it from the surface. One forward and 
backward motion constitutes one double rub. Do a control test adjacent to the MEK test area. Use 
only a dry clean cloth rubbed in the same manner as the  original test for the control test to establish 
the effects of the cloth on the coating.  
13.4 Cautions for testing  
The tests require the following cautions:  
a) since the durability and physical properties of sheets and coils are affected by environmental 
conditions and by paint coating flaws incurred in handling, hair cracks on processed surfaces, etc., 
testing shall be conducted on flat sheets with normal surfaces ; and  
b) the temperature for tests on physical properties shall be from 5 C to 35 C. 
14 Inspectio n 
Inspection shall be as follows:  
a) the durability test is a performance test, and the test results shall comply with the requirements in 
Clause 6 ; 
b) the results of tests and inspection on the physical properties of paint coatings, dimensions, shape 
and appear ance shall satisfy the requirements specified in Clauses 6 , 8, 9, 10, 11  and 12 ; and  
c) when part of the test results for physical properties fail to meet the requirements, a retest using 
double the number of test pieces taken from the same lot is permitted.  
15 Marking  
15.1 Reverse side marking  
15.1.1  For the sheets and coils which have passed inspection and the quality of which is guaranteed for one 
side only, the reverse side markings shall be as shown in Figure 5 .  
For both -side guarantees, the sheets and c oils shall be marked only when so specified.  
15.1.2  Each sheet or coil shall be permanently and legibly  marked.  
15.1.3  For roofing , the fol lowing shall be indicated:  
a) manufacturer’s name  and/or trade name ;  
b) nominal thickness ; 
c) batch number ; and   
d) designation of the substrate . FDEAS 468: 2013  
14 © EAC 2013  – All rights reserved  
 15.1.4  For other than roofing the following items may be indicated, upon agreement between the purchaser  
and the manufacturer : 
a) manufacturer’s name  or trade name ; 
b) nominal thickness ; 
c) classified symbol (including shape symbol for corrugated sheets) ; 
d) batch number ; and  
e) designation of the substrate . 
15.2 Package marking  
Where s heets and coils are packed , each package shall be marked permanently and legibly with the following  
information : 
a) manufacturer’s name  and/or trade name ; 
b) classified symbol ( including shape symbol for profiled sheets) ; 
c) name of colour ; 
d) symbol indicating coating mass ; 
e) dimensions ; and  
f) number of sheets or mass where applicable . 
16 Storage, transportation and fabrication  
16.1 Cautionary measures for storage, transportation, and fab rication shall be supplied with every sale in 
accordance with 16.2 to 16.4. 
16.2 For the storage of sheets and coils, selection of a well -ventilated indoor place virtually free from dust 
and moisture should be specified. Mixed loading with corrosive substa nces such as chemicals should be 
avoided.  
16.3 Every precaution should be taken against paint coating damage and contact with water during 
transportation and transfer.  
16.4 The formability of paint coatings deteriorates with the descent of temperature.  Wh en sheets and coils 
stored in a low -temperature warehouse are to be fabricated, the temperature of the material should be 
elevated to normal temperature.  
16.5 The indication of sheets and coils shall normally be made in terms of classified symbol, symbol f or 
guaranteed side(s), symbol for surface protective treatments, symbol indicating coating mass, name of colour, 
and dimensions, as given in Figure 5.  
 FDEAS 468 : 2013  
© EAC 2013  – All rights reserved  15 
 Figure 5(a) — For sheet  
 
 
Figure 5(b) — For coil  
 
Figure 5(c) — For roofing ( coil) 
FDEAS 468: 2013  
16 © EAC 2013  – All rights reserved  
  
Figure 5(d) — For corrugated sheet using commercial, hard  
Figure 5 — Indications for sheets and coils  
FDEAS 468 : 2013  
© EAC 2013  – All rights reserved  17 
 Annex A  
(informative)  
 
Examples of indications for types of sheets and coils  
Examples of indications for types of sheets  and coils are given as follows:  
 CGCC -20 
Pre-paint ed hot-dip zinc -coated steel sheets and coils, commercial, Class 2, one-side guaranteed  
 CGCCR -22 
Pre-painted hot -dip zinc -coated steel sheets and coils for roofing, u sing Commercial Quality, Class 2, 
both-side guaranteed  
 CGC 400 -32 
Pre-painted hot-dip zinc -coated steel sheets and coil, structural , Class 3 (Class 2 for reverse side ), 
both-side guaranteed  
 CGCCR -20 W2  
Corrugated steel sheets for roofing of pre -painted hot -dip zinc -coated steel sheets and coils , using 
Commercial Quality, Class 2, one -side guaranteed  FDEAS 468: 2013  
18 © EAC 2013  – All rights reserved  
 Annex B 
(informative)  
 
Ordering information  
B.1 The coated flat sheet covered by this standard is produced on continuous lines to decimal thickness 
only. The thickness of the sheet includes the base steel and the metallic coating. The thickness of the organic 
system is in addition to the substrate (base steel and metallic coating).  
B.2 Orders for ma terial under this specification should include the following information, as applicable, to 
describe the required product adequately:  
a) product  name (pre -painted steel sheet);  
b) designation of substrate, (including quality designation and grade, if required ; 
c) metallic coating type and weight ; 
d) organic coating system designation ;  
e) dry organic film thickness top side and bottom side (the top side typically consists of a primer and 
topcoat and the bottom side a primer and a washcoat; however the bottom side may be o rdered to the 
same quality as the top side) ; 
f) protection required (waxed or strippable coating) ; 
g) dimensions (thickness, width, either flat or formed (overall or cover) and length (if cut length) and, if 
applicable, type of formed configuration ; 
h) coil size re quirement: maximum outside diameter, acceptable inside diameter, and maximum weight 
(mass) ; 
i) cut length requirement maximum lift weight (mass) ; 
j) special requirements, if any ; and 
k) application (part identification and description).  
 
 FDEAS 468: 2013    
 
© EAC 2013  – All rights  reserved  
  
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