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(1)耐水性:目的是测试涂膜对水的抵抗能力,即在规定的条件下,将养护的漆膜测试板(漆膜做在石棉板上)浸泡在蒸馏水中,漆膜的2/3在水中,1/3在水面以上,一般浸泡96小时后,观察漆膜表面是否有发白、失光、起泡、脱落等现象,如没有则通过测试。(2)耐碱性:目的是测试涂膜对碱性物质的抵抗能力,即在规定的条件下,将养护的漆膜测试板(漆膜做在石棉板上)浸在一定浓度的碱液中,漆膜的2/3在水中,1/3在水面以上,一般浸泡48
(1) Water resistance: The purpose is to test the resistance of the coating to water, that is to say, under the specified conditions, the cured test film (the asbestos paint film on the asbestos board) is immersed in distilled water, 3 in the water, 1/3 above the water, generally 96 hours after immersion, observe the film surface whitening, loss of light, blistering, shedding and other phenomena, if not through the test. (2) alkali resistance: The purpose is to test the resistance of the coating on alkaline substances, that is, under the conditions specified, the conservation of the paint film test board (paint film made of asbestos) immersed in a certain concentration of lye In the film 2/3 in the water, 1/3 above the water, the general soak 48