English

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Elcometer 1510

Conical Mandrel Bend Tester

Operating Instructions

English

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is a registered trademark of Elcometer Instruments Ltd.
All other trademarks acknowledged.
© Copyright Elcometer Instruments Ltd. 2005.
All rights reserved. No part of this Document may be reproduced, transmitted,transcribed, stored (in a retrieval system or otherwise) or translated into anylanguage, in any form or by any means (electronic, mechanical, magnetic,optical, manual or otherwise) without the prior written permission of
Elcometer Instruments Ltd.
Doc.No. TMA-0339 Issue 01
Text with Cover No: 19499

Op_1510_English.fm Page 1 Thursday, August 4, 2005 9:31 AMRCONTENTS
SectionPage

1
About your tester . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
1.1 Standards . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
1.2 What the box contains . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
22.1
2.2
2.3

Getting started . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
The parts of your tester . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4Specimens . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

3Testing a specimen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44Calculating elongation - ASTM D 522 . . . . . . . . . . . . . . . . . . . . . . . . . 55Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66

Technical specification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

7Related equipment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71Op_1510_English.fm Page 2 Thursday, August 4, 2005 9:31 AMRT

hank you for purchasing this Elcometer 1510 Conical Mandrel Bend Tester.
Welcome to Elcometer.

Elcometer are world leaders in the design, manufacture and supply ofinspection equipment for coatings and concrete. Our products cover all aspectsof coating inspection, from development through application to post application
inspection.
Your Elcometer 1510 Conical Mandrel Bend Tester is a world beating product.
With the purchase of this product you now have access to the worldwide service
and support network of Elcometer. For more information visit our website atwww.elcometer.com

1 ABOUT YOUR TESTERThe Elcometer 1510 Conical Mandrel Bend Tester is used to determine theelasticity, adhesion and elongation of coatings on sheet metal.
The specimen is clamped against a conical mandrel and is bent around themandrel by a roller mounted on a hand operated lever. The diameter of themandrel at the point where the coating starts to crack can be determined froma scale marked on the specimen clamp.
The tester is of heavy duty construction and provides excellent resistance todeformation and long service life.

1.1 StandardsThe Elcometer 1510 Conical Mandrel Bend Tester can be used in accordancewith the following National and International Standards:
ASTM D 522
DIN ISO EN NF 6860

BS 3900 E11ECCA T7

1.2 What the box contains••Elcometer 1510 Conical Mandrel Bend Tester
Operating instructions

To maximise the benefits of your new Elcometer 1510 Conical Mandrel
Bend Tester please take some time to read these Operating Instructions.
Do not hesitate to contact Elcometer or your Elcometer supplier if you
have any questions.

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2 GETTING STARTEDThis section of the instructions is intended for first-time users of the tester. It
contains information on the parts and installation of your tester andspecifications for the specimen. When you have finished reading this section
you will be ready to start using your Elcometer 1510 Conical Mandrel Bend
Tester.

2.1 The parts of your tester
Figure 1 identifies the parts of your Elcometer 1510 Conical Mandrel BendTester.

Bending lever

Bending leverroller

MandrelSpecimen clamp

Figure 1. Elcometer 1510 Conical Mandrel Bend Tester3Op_1510_English.fm Page 4 Thursday, August 4, 2005 9:31 AMR

2.2 Installation
Mount the instrument on a sturdy table in a clean and dry environment. Fasten
in place using the mounting holes in the base of the instrument.

2.3 Specimens
Specimens should be prepared according to the requirements of the test
standard. Specimens should be flat, free from distortion and the coated surface
should not contain any visible cracks. Specimen dimensions are given in“Technical specification” on page 7.
Note: When testing to BS 3900 E11 and DIN ISO EN NF 6860, make incisions
in the coating through to the substrate, parallel to the short edges of thespecimen at distances of 20 mm (0.79").

3 TESTING A SPECIMEN
1. Swing the bending lever towards the specimen clamp until it reaches thestop position.
2. Open the specimen clamp.
3. Insert the specimen into the clamp such that;• the coated surface of the specimen faces away from the mandrel, and• one short edge of the specimen is touching the narrow end of themandrel.
4. Tighten the specimen clamp until the specimen is held tightly.
If the specimen clamp is not tightened sufficiently, the specimen may slip
during bending.
A sheet of paper placed against the coated surface will help to protect thesurface from damage caused by the bending lever roller.
5. Hold the bending lever firmly, and with a smooth action, swing the bending
lever away from the specimen clamp until it reaches its stop position.
The specimen will now be bent into a conical ‘U’ shape.
6. Using a magnifier if necessary, inspect the coating for cracks in accordancewith the requirements of the test standard. Mark the end of the crack
furthest from the narrow end of the mandrel. The diameter of the mandrel atthis point can be determined from the scale marked on the specimen
clamp.

4

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7. Swing the bending lever back towards the specimen clamp until it reaches
the stop position and then release the specimen from the specimen clamp
and remove.
8. Measure and record the length of the crack from the narrow end of themandrel.
Repeat the test on two further specimens and calculate the average of the threeresults.

4 CALCULATING ELONGATION - ASTM D 522

Crack length (inches)

If required, use the curve shown in Figure 2a to determine the elongation of thecoating.
01234567802468 10 12 14 16 18 20 22 24 26 28 30 32% elongation
Figure 2. Crack length versus % elongation Cold rolled steel, 0.8 mm (1/32") thick, 25 µm (1 mil) coatinga. The curves shown in Figure 2 and Figure 3 are reproduced from ASTM D 5225

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Crack length (inches)

If necessary, adjust for coating thickness; add the correction value obtainedfrom the curve in Figure 3 to the percentage elongation obtained from the curvein Figure 2.
0123456780 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0 1.1 1.2 1.3 1.4 1.5 1.6% correction
Figure 3. Crack length versus % elongation correction value per 25 µm (1 mil) coating thickness

5 MAINTENANCE
The Elcometer 1510 Conical Mandrel Bend Tester is designed to give many
years reliable service under normal operating and storage conditions.
Periodically, clean the mandrel using a cloth slightly dampened with oil.
The tester does not contain any user-serviceable components. In the unlikely
event of a fault, the Elcometer 1510 should be returned to your local Elcometer
supplier or directly to Elcometer.
Details of Elcometer offices around the world are given on the outside cover ofthese operating instructions. Alternatively visit the Elcometer website,www.elcometer.com

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6 TECHNICAL SPECIFICATION
Dimensions:

325 mm x 350 mm x 100 mm(12.8" x 13.8" x 4")

Weight:9 kg (20 lb)

Mandrel diameter:

3.2 mm to 38.1 mm (0.12" to 1.5")

Mandrel length:

203 mm (8")

Specimen dimensions:

180 mm x 100 mm x 0.8 mm(7" x 4" x 0.03")

The Elcometer 1510 Conical Mandrel Bend Tester is packed in a cardboard andfoam package. It is recommended that this packaging is retained and reused in
the event that the instrument needs to be transported.
If the packaging materials are disposed of, please ensure that this is done in anenvironmentally sensitive manner. Consult your local Environmental Authority
for further guidance.

7 RELATED EQUIPMENT
In addition to the Elcometer 1510 Conical Mandrel Bend Tester, Elcometerproduces a wide range of other equipment for determining the physicalcharacteristics of surface coatings.
Users of the Elcometer 1510 may also benefit from the following Elcometerproducts:••••

Elcometer 1506 Cylindrical Mandrel Bend Tester
Elcometer 1615 Variable Impact Tester
Elcometer 1620 Cupping Tester
Elcometer 1542 Cross Cut Adhesion Tester

For further information contact Elcometer, your local supplier or visit
www.elcometer.com

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