R-Guard Board Seam Filler WB is an acrylic, gun-grade, board-seam filler that is easy to gun, spread and tool. Use Board Seam Filler WB to fill seams in the field, before coating over with R-Guard FastFlash or any PROSOCO R-Guard air barrier coating. Use Board Seam Filler WB as part of a continuous building-wide air barrier system.

Features

• Water-based formula for easy water cleanup.
• Bonds to most common building materials without priming.
• Single-component saves time – No mixing.
• May be fully exposed to UV and weather for up to 12 months.
• Solvent-free. Isocyanate free. Phthalate free.
• Breathable – Allows damp surfaces to dry.

20 oz cartridge
20 pcs/ctn