ISO 1518-2:2019
Paints and varnishes — Determination of scratch resistance — Part 2: Variable-loading method
This document specifies a method for determining, using a pointed stylus loaded with a continuously increasing load, the scratch resistance of a single coating of a paint, varnish or related product, or the upper layer of a multicoat system.
This test has been found to be useful in comparing the scratch resistance of different coatings. It is most useful in providing relative ratings for a series of coated panels exhibiting significant differences in scratch resistance.
NOTE Neither this document nor ISO 1518‑1 specifies a method using a curved stylus, which is specified in ISO 12137. The choice between the three methods will depend on the particular practical problem.
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Foreword
1 Scope
2 Normative references
3 Terms and definitions
4 Principle
5 Apparatus
6 Sampling
7 Test panels
7.1 Substrate
7.2 Preparation and coating
7.3 Drying and conditioning
7.4 Thickness of coating
8 Procedure
8.1 Test conditions
8.2 Preparation for the test
8.3 Determination
9 Expression of results
10 Precision
11 Test report
Bibliography
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Foreword
1 Scope
2 Normative references
3 Terms and definitions
4 Principle
5 Apparatus
6 Sampling
7 Test panels
7.1 Substrate
7.2 Preparation and coating
7.3 Drying and conditioning
7.4 Thickness of coating
8 Procedure
8.1 Test conditions
8.2 Preparation for the test
8.3 Determination
9 Expression of results
10 Precision
11 Test report
Bibliography