Product Description Universal silicone sealants is a low modulus, elastic seam. One-component, cost-effective silicone sealants. 668 silicone sealants is a building material with high temperature resistance, which is waterproof and airtight. It has weather resistance and aging resistance, and will not be degraded by rain, snow or long-term ultraviolet radiation. Suitable for: 1. joint sealing in high grade glass assemblies. 2. joint sealing of light roof constructions and large glazings 3. Seam sealing of side and rear window glazing 4. Seam sealing of super aquariums and water tanks. 5. assembly of various windows and doors. 6. general joints and seals. Model NO. 668 Characteristic Weatherability Shelf Life 12 Month Ce…