Home & Garden Architecture

How to Use Fiberglass Drywall Tape

By Home & Garden Last updated Thursday, July/11/2024

1). Lay a section of fiberglass drywall tape over the entire length of the joint.
2). Press it onto the joint, making sure to keep it centered.
3). Cut away any loose strands or excess fiberglass tape with a utility knife. The tape should lay as flat as possible.
4). Cover the entire length of the fiberglass drywall tape with a coat of setting-type joint compound, applied with a 12-inch drywall knife. Feather the edges and leave the surface as smooth as possible.
5). Allow the joint compound to dry according to the product directions.
6). Sand the dried joint with 100-grit sandpaper. Apply another coat of compound to the joint if the surface is still not smooth. Let the compound dry, then sand it.