This International Standard specifies three methods (i.e. one dolly or two dollies on a painted panel and two dollies, one as painted substrate) for determining the adhesion by carrying out a pull-off test on a single coating or a multi-coat system of paint, varnish or related product.<\/p>\n
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.<\/p>\n
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.<\/p>\n
| PDF Pages<\/th>\n | PDF Title<\/th>\n<\/tr>\n | ||||||
|---|---|---|---|---|---|---|---|
| 4<\/td>\n | European foreword Endorsement notice <\/td>\n<\/tr>\n | ||||||
| 6<\/td>\n | Foreword <\/td>\n<\/tr>\n | ||||||
| 7<\/td>\n | Introduction <\/td>\n<\/tr>\n | ||||||
| 9<\/td>\n | 1\tScope 2\tNormative references 3\tPrinciple <\/td>\n<\/tr>\n | ||||||
| 10<\/td>\n | 4\tApparatus <\/td>\n<\/tr>\n | ||||||
| 12<\/td>\n | 5\tAdhesives 6\tSampling <\/td>\n<\/tr>\n | ||||||
| 13<\/td>\n | 7\tTest panels 7.1\tSubstrate 7.2\tPreparation and coating 7.3\tDrying and conditioning 7.4\tThickness of coating 8\tProcedure 8.1\tNumber of determinations 8.2\tAmbient conditions 8.3\tAdhesive 8.4\tTest assemblies 8.4.1\tMethod A: General method (using two dollies) for testing both rigid and deformable substrates <\/td>\n<\/tr>\n | ||||||
| 14<\/td>\n | 8.4.2\tMethod B: Method for testing from one side only, using a single dolly (suitable for rigid substrates only) <\/td>\n<\/tr>\n | ||||||
| 15<\/td>\n | 8.4.3\tMethod C: Method using dollies, one as a painted substrate 8.5\tMeasurement 8.5.1\tBreaking strength <\/td>\n<\/tr>\n | ||||||
| 16<\/td>\n | 8.5.2\tNature of the fracture 9\tCalculation and expression of results 9.1\tBreaking strength <\/td>\n<\/tr>\n | ||||||
| 17<\/td>\n | 9.2\tNature of failure 9.3\tExample 10\tPrecision 11\tTest report <\/td>\n<\/tr>\n | ||||||
| 19<\/td>\n | Bibliography <\/td>\n<\/tr>\n<\/table>\n","protected":false},"excerpt":{"rendered":" Paints and varnishes. Pull-off test for adhesion<\/b><\/p>\n |