... 4.Resistant to water, weather, ultraviolet, ozone High Grade Silicone Sealant Kater400 Property:One component RTV silicone sealant ... ;Acid curing;High intensity, fast solidification;Resistant to water, weather, ultraviolet ... kgs by drum; Or requested by buyer Optional Colors: black, white, transparent, grey or on requested. High Grade Silicone Sealant ...