ISO 1518-1:2023

Paints and varnishes — Determination of scratch resistance — Part 1: Constant-loading method

Standard Details

This document specifies a test method for determining, under defined conditions, the resistance of a single coating or a multi-coat system of paint, varnish or related product to penetration, by scratching with a scratch stylus loaded with a specified load. The stylus penetrates to the substrate, except in the case of a multi-coat system, in which case the stylus can penetrate either to the substrate or to an intermediate coat.

The method specified can be carried out:

a) either as a “pass/fail” test, by testing with a single specified load applied to the stylus to assess conformity with a particular specification; or

b) as an assessment test by applying increasing loads to the stylus to determine the minimum load at which the coating is penetrated.

NOTE Neither this document nor ISO 1518-2 specifies a method using a curved stylus, which is specified in ISO 12137. The choice between the three methods depends on the particular practical problem.

General Information

Status : Published

Standard Type: Main

Document No: ISO 1518-1:2023

Document Year: 2023

Pages: 9

Edition: 3

Section Volume:
ISO/TC 35/SC 9. General test methods for paints and varnishes

ICS:
87.040 Paints and varnishes

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