prEN 302-4

Adhesives for load bearing timber structures - Polycondensation adhesives of the phenolic and aminoplastic types - Test methods - Part 4: Determination of the influence of shrinkage on the shear behaviour prEN 302-4

Scope

This Part of EN 302 describes a method for determining the extent to which wood shrinkage under drying conditions will weaken an adhesive bond. It is suitable for the following applications: a) for assessing the compliance of adhesives with EN 301; b) for assessing the usability and quality of adhesives for load-bearing timber structures; c) for establishing whether or not the adhesive is capable of withstanding stresses due to shrinkage of the wood, without unacceptable loss of strength.