GB 1762-1980 《Determination of paint film after tack》 Related products

This standard applies to the determination of after tack of paint film. After drying, the paint film may adhere when it is affected by a certain temperature Humidity, which is called after tack of paint film. The measuring instruments include medium speed quantitative filter paper, flat and smooth Backtack tester weighing 500 grams, etc. The determination method is based on the preparation and drying conditions of the paint film, using a Conditioning box, tested at 40 +/- 1 ° C, 80 +/- 2% relative humidity, and the rating is divided into 1 to 3 grades according to the degree of adhesion of the filter paper sheet and the fiber density grade.