Dicor Products Butyl Rubber Sealant is a unique gunable butyl tape that's used to provide a watertight primary seal between lapping substrates and joints. It's easy to apply and tool and exhibits superior adhesion to a variety of clean surfaces. Butyl rubber sealant shows excellent resistance to weathering, shrinking, and cracking. Its "gun-ability" allows for a mess-free application, forming an airtight seal and leaving a seamless finish.• Provides a watertight primary seal between lapping substrates and joints• For use on skylights, vents, windows, and termination rails• Compatible with TPO, EPDM, PVC, glass, metal, aluminum, concrete, wood, and plastics• Easy, mess-free application• Cures to a putty-like consistency• Creates an airtight, strong seal that resists degradation• Color: Gray• 10.1-oz. tube Shows excellent resistance to weathering, shrinking, & cracking Great for use on skylights, vents, windows, & more Compatible with TPO, EPDM, PVC, glass, metal, aluminum, concrete, wood, & plastic | Dicor Products Butyl Rubber Sealant Gunable Butyl Tape, 10.1 oz, Grey