... temperature, waterproof, weatherproof, heat and freezing resistant. YA-688 silicone sealant is single-component, acetic cure, specially designed for all kinds ... of aquaria, fish tanks and pools application, and glass glazing and sealing in ornamental engineering. Features: 1) single-component, ... excellent extensile adhesion to most architectural materials. YA-688 silicone sealant for aquarium