DIN Standards Committee Coatings and Coating Materials
DIN EN ISO 4624
Paints and varnishes - Pull-off test for adhesion (ISO 4624:2016); German version EN ISO 4624:2016
Beschichtungsstoffe - Abreißversuch zur Bestimmung der Haftfestigkeit (ISO 4624:2016); Deutsche Fassung EN ISO 4624:2016
Overview
This standard specifies three methods (that is, one test dolly or two test dollies on a painted panel, or with two test dollies, one as a painted substrate) for determining adhesion strength. These test methods have been found useful in comparing the adhesion behaviour of different coatings. It is most useful in providing relative ratings for a series of coated panels exhibiting significant differences in adhesion. The test may be applied using a wide range of substrates. Different procedures are given according to whether the substrate is deformable, for example thin metal, plastics and wood, or rigid, for example thick concrete and metal plates. To avoid distortion of the substrate during the tensile test, it is common to use a sandwich construction. For example, for special purposes, the coating may be applied directly to the face of a test dolly. The responsible committee is NA 002-00-07 AA "Allgemeine Prüfverfahren für Beschichtungsstoffe und Beschichtungen" ("General test methods for coating materials and coatings") at DIN Standards Committee Coatings and Coating Materials (NAB).
Document: references other documents
Responsible national committee
NA 002-00-07 AA - General test methods for coating materials and coatings
Responsible european committee
CEN/TC 139 - Paints and varnishes