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SRPS CEN/TS 927-9:2019

Paints and varnishes - Coating materials and coating systems for exterior wood - Part 9: Determination of pull-off strength after water exposure

Jan 31, 2019

General information

60.60     Jan 31, 2019



Technical Specification





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This Technical Specification specifies a method for assessing the resistance of a coating system on wet wood to separation from the substrate by measuring the force necessary to detach or rupture the coating system by a normal tensile strain applied through an attached stud (dolly). Additional information is gained by noting the type and locus of failure. The force required for detachment will depend on several factors including the adhesion of the coating to the substrate and between intermediate coating layers. The procedure is not regarded as a direct means of measuring adhesion but an indicator of adhesive performance (adherence) under wet conditions.
A procedure for wetting the wood substrate is described. The test method is only suitable for wood and wood based substrates.
For dry adhesion the test method is allowed to be carried out without wetting in which case it will differ very little from EN ISO 4624.

Life cycle


SRPS CEN/TS 927-9:2019
60.60 Standard published
Jan 31, 2019


dnaSRPS CEN/TS 927-9:2021

Related project

Adopted from CEN/TS 927-9:2018