Poly-Seal Butyl Tapes

Our Poly-Seal butyl tape line manufactured by Hardcast was designed to perform in the harshest exterior conditions as a roof sealant, seam sealant, flashing tape or roof repair membrane. These tapes provide a durable, lasting seal to standing seam roofs, skylights, windows and doors, gutters, and almost any exterior application that requires a seam sealing or flashing tape. Alternative uses include pipe sealing and repair in systems such as swamp coolers and other HVAC systems where leakage is an ongoing concern.


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