... purpose glazing 3, excellent weatherability, waterproof Description:Big Glass Glazing Silicone Sealant OLV768 is one-component, ... acetoxy cure, high quality silicone sealant designed for big glass and other general purpose glazing and waterproofing ... , not intended for use in preparing specification. Big Glass Glazing Silicone Sealant OLV768PerformanceStandardMeasured ValueTesting MethodTest at ...