... cement 1.The principle of anti-foulingAnti-fouling agent APC-38 is a kind of transparent, colorless liquid. It ... unpolluted for a long time. Anti-fouling agent APC-38 can protected the tiles from contaminant, for example cements, ... , edge grinded and dried, it also has a little of water in or on it, when coated APC ... -38, these water can evaporate out entirely, so there ...