原来的popcorn CEILING应该不是oilbased。原因可能就是现在用的是WATER-based CEILING PAINT,而不是oil-based。网上查了下,用WATER-based CEILING PAINT之前,应该用 one coat of an nonwater-based primer/sealer。我的理解对不?
现在如果直接在龟裂上面刷OIL-BASED paint可以吗?还是必须除掉旧的。
Priming... If the sprayed ceiling has never been painted, or has been spray painted before, it should be coated with one coat of an nonwater-based primer/sealer, such as Kilz or BIN.