Lucas #407 PolyPan® Straights are used for sealing around penetrations on all flat roofs. #407 are designed to be configured in a variety of sizes to accommodate various penetrations. Ideal for single-ply applications. Lucas #407 are constructed from a high strength polymer. Application: The surface of the roof must be clean and dry. TPO surfaces require the use of Lucas #8015 TPO primer. Using four #408 PolyPan® Corners, and, the appropriate number of #407 PolyPan® Straights pending on pan size required, push the PolyPan® pieces together until you hear an audible click. Assure there is a minimum of 0.5” between pipe and top of PolyPan™ edge. With Lucas #9600 Sealant, apply three 0.25” ribbons of sealant onto the underside of flange of PolyPan® and firmly seat PolyPan® onto to roof surface. Use #9600 to seal around outside edge. Fill PolyPan® with a compatible pitch pocket sealant. Finish: White
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