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Stain-Resistant Pre-Coated Aluminum Sheets“FUSCOAT CLEAN Series”

1.

INTRODUCTION

and metallic powder. Moreover, by making the surfacehydrophilic, it is provided with self-cleaning property utilizing rain.

Recently, urban-type pollution is presenting problems
including those caused by automobiles’ emission gas andthe like. Building materials and civil engineering structures
tend to degrade in terms of the beauty as well as in function when pollution proceeds, so that there is a strong
need for “stain-resistant material” and “easy-to-cleanmaterial”.
Furukawa Electric has developed, in response to sucha need, stain-resistant, pre-coated aluminum sheets“FUSCOAT CLEAN Series”.

2) The sheet is hard to change in appearance and quality when used outdoors, including discoloration.
3) Four series of products in terms of resin and color areavailable, enabling to meet the various needs.
4) Because it is pre-coated, the sheet is stabilized inquality realizing cost reductions on the processed
products.

3.
2.

FEATURES

1) The sheet is stain-resistant, and even when stained,
the material is easy to be cleaned.

Figure 1 shows the structure of the coating film. After
chemical conversion coating is applied on the aluminum
sheet as surface preparation, the surface is coated withThe FUSCOAT CLEAN Series is the first pre-coat aluminum material that passed the Test for Stain-ResistantMaterials for Civil Engineering Use, Type-I that is conducted by the Public Works Research Center under theauspices of the Ministry of Land, Infrastructure andTransport.
The coating film is resistant against adhesion oforganic pollutants such as automobiles’ emission gasand tar as well as that of solid pollutants such as mud

Table 1Item

JIS H 4001

Stain resistance

Stain-resistant resin layer
Undercoat
Chemical conversion coating
Aluminum sheet
Backside coating

Figure 1

Structure of coating film of FUSCOAT CLEAN.

Properties of FUSCOAT CLEAN.
E100

E200

C100

C200

Resin type

Fluoroplastic

Non-Fluoroplastic

Fluoroplastic

Non-Fluoroplastic

Color type

Color 1)

Color 1)

Clear

Clear

Series No.
ProductSTRUCTURE OF COATING FILM

20 µm

15 µm

20 µm

15 µm

Stain-resistance test, type I

PassedPassedPassedPassedStandard coating film thickness

Outdoor exposure test for rain stain (18 mo.)

GoodGoodGood

Good

Scratch hardness (Pencil method)

Fracture

3H4H

3H

4H

Adhesion

Cross-cut test

100/100

100/100

100/100

100/100

Bending resistance

Tape peeling after 180° bending

No peeling

No peeling

No peeling

No peelingImpact resistance

DuPont method (500 g, 500 mm)

No peeling

No peeling

No peeling

No peelingCorrosion resistance

Salt spray test for 1000 hrs

No abnormalities No abnormalities No abnormalities No abnormalities

Humidity resistance

49°C, RH95 % or above, 1000 hrs

No abnormalities No abnormalities No abnormalities No abnormalities

Weather resistanceAccelerated test using sunshine carbon, 500 hrs GR 90 % or above GR 90 % or above GR 90 % or above GR 90 % or above

Acid resistance

Sulfuric acid 2 % solution, 20°C, 24 hrs

No abnormalities No abnormalities No abnormalities No abnormalities

Alkali resistanceSaturated calcic water, 20°C, 24 hrs

No abnormalities No abnormalities No abnormalities No abnormalities

1) Almost all colors are available. Please speak with us when ordering.

Furukawa Review, No. 232003

134

Stain-Resistant Pre-Coated Aluminum Sheets “FUSCOAT CLEAN Series”

FUSCOAT CLEANAccepted productin stain-resistance test, type I

Ordinary colored aluminum sheet
Unaccepted productin stain-resistance test, type I∆L: -2 or better∆L: -40

Stain resistance

Figure 2

Appearance of coating films after stain-resistance test.

FUSCOAT CLEAN

Conventional stain-resistant coated material

Unwashed area

Unwashed area

Washedarea

Initial state

Figure 3

Washedarea

After 18 mo.

Initial state

After 18 mo.

Appearance of coating films after outdoor exposure test for rain stain.

undercoat when needed, and then a stain-resistant resin
layer is provided at the outermost surface.

5.

4.

With its superior stain resistance, FUSCOAT CLEAN canbe used for such applications as building panel for indoor
or outdoor use, siding panel, sound barrier, sign board,van body, and panel for prefabricated bath unit, in addition
to casing and housing for electro-electronic equipment.

PROPERTIESThe properties of FUSCOAT CLEAN are shown in Table
1, and the appearance after stain-resistance tests inFigures 2 and 3.
It can be seen that not only is the sheet superior in stainresistance, but also its basic property satisfactorily meets
all the standards specified in JIS H 4001 --Painted aluminium and aluminium alloy sheets and strips--.

APPLICATIONS

For more information, please contact:
Developmental Marketing Gr., Developmental
Marketing Dept. UNIFUS ALUMINUM CO., LTD.
TEL: +81-3-5611-2398
FAX: +81-3-5611-2413
or visit our website at:
http://www.unifus.co.jp/Furukawa Review, No. 23

2003135