Testing Applied Paint Films

Scratch Tester

Scope and Field of Application

These tests may be carried out on freshly applied or aged coatings and are often used to assess test panels after durability or corrosion testing.

It is important to emphasise that, generally, these tests do not have any pass/fail criteria. The standards simply describes the test equipment and the manner in which the tests should be carried out. Pass/fail criteria are a matter of prior agreement between customer and supplier but if this information is not available we will be pleased to give our opinion, where possible, of what constitutes a good, acceptable or poor result.

We appreciate that some clients may be uncertain which tests are most appropriate for their products. One important rule for those who wish to use test data for promotional purposes is, wherever possible, liaise with potential customers first and find out if they have any preferences regarding the tests that they require and the methods they prefer.

 

Test Standard
Abrasion Resistance BS 3900-E14, ISO 7784-1, BS 3900-E15, ISO 7784-2, ASTM D 4060
Adhesion BS EN ISO 2409, BS 3900-E6, BS EN 24624, ISO 4624
Application Properties and Appearance In-house method
Assessment of Blistering BS 3900-H2, ISO 4628/2
Assessment of Chalking BS 3900-H6, ISO 4628/6
Assessment of Cracking BS 3900- H4, ISO 4628/4
Assessment of Flaking BS 3900-H5, ISO 4628/5
Assessment of Rusting BS 3900-H3, ISO 4628/3
Chip Resistance BS AU 148: Part 15
Colour Comparison (Instrumental) BS 3900-D8, BS 3900-D9, BS 3900-D10, ISO 7724 Parts 1, 2 and 3
Colour Comparison (Visual) BS EN ISO 3668, BS 3900-D1
Cupping Resistance BS EN ISO 1520, BS 3900-E4
Drying Time: Surface Dry BS 3900-C2, ISO 1517
Drying Time: Through Dry BS 3900-C3, ISO 9117, BS EN 29117
Film Thickness BS EN ISO 2808, BS 3900-C5
Flexibility BS EN ISO 1519, BS 3900-E1, BS EN ISO 6860, BS 3900-E11, ASTM D 522
Gloss BS EN ISO 2813, BS 3900-D5
Hardness BS EN ISO 1518, BS 3900-E2, BS EN ISO 1522, BS 3900-E5, BS EN ISO 2815, BS 3900-E9, BS 3900-E17, ISO 12137-1, BS 3900-E19, ISO 15184, ASTM D 3363.
Impact Resistance BS 3900-E3, BS EN ISO 6272, BS 3900-E7, BS 3900-E13, ASTM D 2794
Minimum Film-forming Temperature ASTM D2354
Opacity BS 3900-D4, BS 3900-D7, BS 3900-D11, ISO 2814, ISO 6504 Parts 1 and 3
Permeability to Water ASTM D 1653
Resistance to Liquids / Stain Resistance BS 3900-G5, ISO 2812/1
Scrub Resistance and Cleanability BS EN ISO 11998, DIN 53-778, ASTM D 2486
Spreading Rate BS 3900-A16, ISO 7254
Surface Energy and Contact Angle In-house method
Tensile Testing ASTM D 2370
Wet Adhesion ASTM D 6900
Wet Edge Time BS 3900-C1
Whiteness ASTM E 313
Yellowness ASTM E 313

 

Please contact Peter Collins for further details.

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