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Dicor 501LST-1 is a self-leveling lap sealant in a 10.3 oz tube, made for sealing and re-sealing RV roofs. It flows out flat on horizontal surfaces, is sun-ray stabilized to resist wear and discoloration, and is formulated not to stain the roofing material it touches. It bonds to EPDM, TPO and PVC membranes as well as aluminum, wood, fiberglass, galvanized metal, vinyl, mortar and concrete. That breadth of adhesion and its self-leveling flow are why it is the sealant most RV owners reach for; the trade-off is that it only works on flat, horizontal areas, so vertical seams need a non-leveling sealant instead.
In stockShips from Hong Kong SAR China · duties may applyReturn policy
RV owners widely treat Dicor self-leveling lap sealant as the standard for roof maintenance, praising how easily it flows flat and how well it holds on membrane roofs. Complaints center on the runny consistency on anything but level ground and the modest coverage per tube.
Dicor 501LST-1 is a self-leveling lap sealant for RV roofs. It is sun-ray stabilized to block wear and discoloration, and it does not stain or discolor any roofing material it is applied to.
It levels itself for smooth application on horizontal surfaces. It works with EPDM, TPO and PVC membranes. It also adheres firmly to aluminum, mortar, wood, vinyl, galvanized metal, fiberglass and concrete.
