Mold is not easy hereby health, internal molecular closely, no bubbles. Silicone caulk to replace the traditional way, both beautiful. High bonding strength and flexibility, can be bent anti-embrittlement, yellowing, aging and UV damage. Excellent viscoelastic properties can effectively overcome the expansion and contraction caused by thermal deformation, moist environment to ensure quality. Suitable for families with infants and young children, or elders.