This type of sealant mainly butyl rubber high molecular weight polyisobutylene a certain degree of polymerization of acrylic chlorosulfonated polyethylene and neoprene rubber sealant.

• 这一类密封胶主要有丁基橡胶、高分子量聚异丁烯、一定聚合程度的丙烯酸酯、氯磺化聚乙烯以及氯丁橡胶等密封胶。