Slides over pipe for pitch to 45° . Use silicone sealant between base and surface, and secure with sheet screws. Multi-size pipe sealing range. Molds to metal, plastic, etc. Non-fading EDPM collar. Rated 212° Fahrenheit continuous heat. Resists weathering due to ozone and ultraviolet light. Approved for Type B installations. Not for hot-mopped or built-up roofs. Do not use paint or petroleum based products on collar.