免费30款黄台网站,免费可以看污APP,在线黄色网站,碰操人人操_人人爽人人澡人人喊_久久精品免费电影_色小说 综合

Release coating is also known as anti-adhesion coating, and silicone release coating is the most common. It is usually used between substrate and pressure sensitive adhesive (PSA) layer and its primary function is to prevent PSA from contamination or adhesion loss.  Silicone Release coating plays an important role in film substrate, baking paper, self-adhesive envelope, and hygienic application.