Do not tool feather or smear sealant.
Gs121 gutter sealant reviews.
This seal expands and contracts with the change of weather and temperature without cracking.
Gs121 is designed for sealing around aluminum galvanized and vinyl gutters and downspouts sealing seam joints and cracks in gutter troughs and for use on sheet metal air conditioning and heating ducts and ventilators.
Formulated especially for sealing aluminum galvanized and vinyl clad gutters and downspouts.
Osi gs121 gutter and seam sealant is composed of high quality resins and polymers which cures to form a tough rubbery seal.
Gs121 expands and contracts with temperature changes cures to a tough rubbery gasket while remaining permanently flexible.
This seal expands and contracts with the change of weather and temperature without cracking.
I had to clean out all of the joints i had sealed with this product and reapply geocel gutter sealant which formed a tough skin within 24 hours after application.
Formulated especially for sealing aluminum galvanized and vinyl clad gutters and downspouts.
Gs121 is designed for sealing around aluminum galvanized and vinyl gutters and downspouts sealing seam joints and cracks in gutter troughs and for use on sheet metal air conditioning and heating ducts and ventilators.
The best caulks however will provide years of service won t harden over time and will remain flexible enough to move with the gutter s expansion and contraction due to temperature changes.
I purchased osi s gs 125 about a year ago and was very disappointed.
The product applies very easily but had not cured 7 days after application in 40 weather.
This is the intro to our stress testing of several popular prof.
Gs121 is designed for sealing around aluminum galvanized and vinyl gutters and downspouts sealing seam joints and cracks in gutter troughs and for use on sheet metal air conditioning and heating ducts and ventilators.
Osi gs121 gutter and seam sealant is composed of high quality resins and polymers which cures to form a tough rubbery seal.
