OSI GS121 Gutter & Seam Sealant

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.