It is not an exaggeration to say that Aluminum Pigmented Gutterseal has a cult following.  Still known in the industry as Alcoa Gutterseal, it is now named just Aluminum Pigmented Gutterseal.  It is definitely one of the more difficult trailer restoration products to find because it is designed--as the name suggests--for the aluminum gutter industry.

Unlike polyurethane based sealants such as the highly respected Tremco U1600, or the classic Parbond, Gutterseal has a tendency to slightly wick into seams, making it a popular choice for sealing panel lap seams.  We encourage you to read our many customer reviews of the product to get a feel for what vintage trailer owners think.

5 ounce squeeze tube does not require a caulking gun.

Contains Acetone, Methyl Acetate and Tert-Butyl Acetate.

See the Material Safety Data Sheet (MSDS) here.

Please note: Ply Gem Industries owns the siding division of Alcoa. Ply Gem sells Gutterseal under the names "Mastic Gutterseal" or "Aluminum Pigmented Gutterseal" instead of the Alcoa name. The product has not changed but the name has.