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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Engineering Assistance

H-O Products offers a broad range of engineering services ranging from material evaluation and specification to product/component design recommendations.


Our standard and custom engineered pads, tapes and gaskets are manufactured to improve performance and efficiency, helping our customers optimize costs and increase productivity.

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Resource Library

From foam and rubber to polymeric and composite knowledge, you can count on our expertise to provide you with a complete product system, along with the technical support and advice you need to succeed.

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