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ILNAS-EN ISO 22970:2020 Edition 12/2020
Paints and varnishes - Test method for evaluation of adhesion of elastic adhesives on coatings by peel test, peel strength test and tensile lap-shear strength test with additional stress by condensation test or cataplasm storage (ISO 22970:2019)
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Abstract

This document specifies three methods for testing the peel adhesion, peel strength and tensile lap-shear strength in order to evaluate the adhesive bond as well as the type, location and structure of failures of elastic adhesives on coatings. These methods are used, for example, for testing the assembly with respect to the bond of panes or built-on parts, such as plastic covers, spoilers, instrument panel covers, headlights, with coatings for automobile construction. The two methods of climatic exposure of specimens described herein are the condensation test and cataplasm storage. This document does not specify requirements for adhesives and coatings. NOTE The peel strength test (method B) for rigid car body construction adhesives is described in ISO 8510‑2. The tensile lap-shear strength test (method C) for rigid car body construction adhesives is described in EN 1465. Testing of rigid car body construction adhesives is generally conducted on small joint thicknesses, i.e. <1 mm.

Status

Standard - Active

Origin

Technical Committee :
CEN/TC 139 : Paints and varnishes

Implementation

start of the vote on the project    06/08/2020   date of ratification (dor)    30/11/2020
end of the vote on the project    29/10/2020   date of anouncement (doa)    31/03/2021
start of the vote on the final project    11/04/2022   date of publication (dop)    30/06/2021
end of the vote on the final project    06/06/2022   date of withdrawal (dow)    30/06/2021


Publication Official Journal
of the Grand-Duchy of Luxembourg
17/06/2021
Reference Mémorial A N° 457

International Classification for Standards (ICS codes) :

87.040 : Paints and varnishes

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