
OSI GS121 Gutter & Seam Sealant
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OSI GS121 White Synthetic Rubber Gutter and Seam Sealant 5 oz (Pack of 24).
OSI GS121 Gutter & Seam Sealant is composed of high quality resins and polymers which cures to form a tough, rubbery seal. This seal expands and contracts with the change of weather and temperature without cracking. Formulated especially for sealing aluminum, galvanized and vinyl clad gutters and downspouts.
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