OSI® GS-121 Gutter & Seam Sealant
OSI Products / OSI® GS-121 Gutter & Seam Sealant
OSI® GS-121 Gutter & Seam Sealant OSI® GS-121 Gutter & Seam Sealant is composed of SBR rubber and high quality resins to form a tough, rubbery seal that expands and contracts with the change of weather without cracking. It is formulated especially sealing aluminum, galvanized and vinyl clad gutters and down spouts. Also available in VOC compliant formula.
- Cures to form a tough, rubbery, waterproof seal
- Withstands moderate expansion and contraction
- Permanently flexible, will not crack or split
- Will not become brittle even after years of exposure to freezing and thawing
- Water Resistant
- 10.2 fl oz (302ml) cartridge
- Aluminum
- White
Mineral spirits or paint thinner
Related Products
Recommended for
OSI® GS-121 Gutter & Seam Sealant is recommended for sealing around aluminum, galvanized & vinyl clad gutters, downspouts & other metal seams. Excellent for sheet metal work, ducts and ventilator joints. It works to seal seams, joints and cracks in gutter troughs.
Not Recommended for
- Bonding, polystyrene foam and polypropylene or polyethylene plastics
- Joints deeper than 3/8" (9.5mm) without the use of backing material
- Applications as an expansion joint control sealant
- Use on copper
- Use indoors without proper ventilation to the outdoors during application and cure
