DIN Standards Committee Coatings and Coating Materials
DIN 55657
Paints and varnishes - Test method for evaluation 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
Beschichtungsstoffe - Prüfverfahren zur Beurteilung der Haftfestigkeit von elastischen Klebstoffen auf Beschichtungen durch Prüfen der Schälhaftung, Schälfestigkeit und Zugscherfestigkeit mit zusätzlicher Beanspruchung durch Kondenswasserprüfung oder Kataplasmalagerung
Overview
This standard specifies three methods, peel adhesion, peel strength and tensile shear strength, for evaluating the adhesive bond, the fracture type, the fracture location and the fracture structure of elastic adhesives on coatings. The methods are used, for example, to test the bond when bonding windows or add-on parts, for example plastic covers, spoilers, dashboard trim, headlights, with coatings in automotive engineering. Two methods are described for climatic exposure of the specimens, condensation water testing and cataplasm storage. This standard does not specify requirements for adhesives and coatings. The responsible committee for this standard is NA 002-00-07-09 AK "Automobilbeschichtungen" ("Automotive coatings") of NA 002-00-09 AA at DIN.
