METHODS OF TEST FOR PAINTS AND VARNISHES : PART A5 : LARGE SCALE BRUSHING TEST (FIRST REVISION)
This Malaysian Standard method of test describes procedures primarily intended for assessing the brushing and flow characteristics of paints and related materials when applied to relatively large areas of closely defined substrates.It can also be used to observe other properties, such as the tendency of the paint to retract from sharp edges and protuberances, for example mouldings, rivet heads, weld seams, etc., with consequent loss of opacity and protective power;for this purpose suitable mouldings, series of rivet heads or other raised features should be attached to the main panel.
The test does not allow the determination of paint properties in any absolute or precise sense, because of the subjective factor involved in evaluating the results. Nevertheless, when carried out by a skilled operator, and especially when used to compare the performance of a product under test and of an agreed standard material, it has been found to give very useful information that is not attainable in a