... weather resistant; 4,equivalent to Dow. Description:OLV568 Fast Cure Glazing Silicone Sealant is one-part acetoxy ... , room temperature, acetoxy curing silicone sealant;2. Fast curing and permanently flexible, waterproof and outstanding weather resistant ... not intended for use in preparing specification. OLV568 Fast Cure Glazing Silicone SealantPerformanceStandardMeasured ValueTesting MethodTest at 50±5 ...