Ensure that your vehicle continues to run smoothly and everyone inside stays comfortable with this tube of Dicor Self-Leveling Lap Sealant on hand. This product is designed for use on horizontal surfaces. It helps create a water tight seal along the roof?s edges around the air vents vent pipes air conditioners screw heads and other possible cracks holes and openings that might compromise your vehicle. This Dicor lap sealant is compatible with EPDM sheeting and offers excellent adhesion to aluminum mortar wood vinyl galvanized metal and concrete. It also improves the ability to continuously seal and remain flexible. This RV roof lap sealant has a special formula that has been UV stabilized to prevent deterioration and discoloration. 4 Pack of Dicor Self Leveling Lap Sealant: Ensure that your vehicle continues to run smoothly and everyone inside stays comfortable with this tube of Dicor Self-Leveling Lap Sealant on hand. This product is designed for use on horizontal surfaces. It helps create a water tight seal along the roof s edges around the air vents vent pipes air conditioners screw heads and other possible cracks holes and openings that might compromise your vehicle. This Dicor lap sealant is compatible with EPDM sheeting and offers excellent adhesion to aluminum mortar wood vinyl galvanized metal and concrete. It also improves the ability to continuously seal and remain flexible. This RV roof lap sealant has a special formula that has been UV stabilized to prevent deterioration and discoloration.