AS 1580.402.1-2003

1 - AS 1580.402.1:2003 PAINTS AND RELATED MATERIALS - METHODS OF TEST - BEND TEST
1 - PREFACE
3 - 1 Scope
3 - 2 Normative references
3 - 3 Required supplementary information
4 - 4 Apparatus
4 - 4.1 Bend test apparatus
4 - 4.1.1 Material
4 - 4.1.2 Type 1 mandrel tester
5 - 4.1.3 Type 2 mandrel tester
6 - 4.2 Controlled-temperature chamber
6 - 5 Sampling
7 - 6 Test panels
7 - 6.1 Substrate
7 - 6.2 General
7 - 6.3 Shape and dimensions
7 - 6.4 Preparation and coating of panels
7 - 6.5 Drying and conditioning
7 - 6.6 Thickness of coating
7 - 7 Procedure
7 - 7.1 Test conditions
8 - 7.2 Procedure for a single specified size of mandrel
8 - 7.3 Determination of the diameter of the first mandrel to cause failure
9 - 8 Expression of results
9 - 8.1 Single mandrel
9 - 8.2 Diameter of the first mandrel to cause failure
9 - 9 Precision
9 - 10 Test report
10 - Annex A - Required supplementary information
11 - APPENDIX ZZ - VARIATIONS TO ISO 1519:2002 FOR APPLICATION IN AUSTRALIA AND NEW ZEALAND

This Standard specifies an empirical test procedure for assessing the resistance of a coating of paint, varnish or related product to cracking and/or detachment from a metal or plastic substrate when subjected to bending round a cylindrical mandrel under standard conditions.

This International Standard specifies an empirical test procedure for assessing the resistance of a coating of paint, varnish or related product to cracking and/or detachment from a metal or plastic substrate when subjected to bending round a cylindrical mandrel under standard conditions.For a multicoat system, each coat may be tested separately or the complete system may be tested.The method specified may be carried out- either as a “go/no go” test, by carrying out the test with a single specified size of mandrel, to assess compliance with a particular requirement;- or by repeating the procedure using successively smaller mandrels to determine the diameter of the first mandrel over which the coating cracks and/or becomes detached from the substrate.Two types of apparatus are specified, type 1 being appropriate for use on test panels of thickness up to 0,3 mm, and type 2 for use on test panels of thickness up to 1,0 mm. Both types of apparatus have been found to give similar results with the same coating, but normally only one will be used for testing a given product.

First published as AS K41.402.1-1957.
Second edition 1963.
Revised and redesignated AS 1580.402.1-1975.
Second edition 1981.
Third edition 1992.
Fourth edition 2003.