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Ideal for rubber roofsProvides excellent sealing adhesion to any type of metal, wood, concrete, glass, plastics, and porous surfacesCan be used under molding and around windows, doors and ventsCan be pressed and formed to obtain a water and air tight sealBest results if applied at room temperature on dry materialsNon-hardening elastic butyl based materialIncreases in adhesion with age after it is appliedCan be trimed easily with any stiff, pointed non-scratching objectOne year shelf life