It has the characteristics of airtightness, waterproofness, antifreeze, and corrosion resistance. Compared with ordinary mastic, it has a longer service life, better flexibility, higher bonding strength, is more environmentally friendly and less prone to aging and cracking. It can be cold applied at room temperature and has higher flame retardancy after drying. It is used together with cold insulation materials such as foam glass, polyurethane, polyisocyanurate, and is an ideal high-end waterproof and moisture-proof sealing material.