PROSOCO R-GUARD® Joint & Seam Filler is a high modulus, gun-grade, crack and joint filler, adhesive and detailing compound that combines the best of silicone and polyurethane properties. This single-component, 99% solids, fiber-reinforced, Silyl-Terminated-Poly-Ether (STPE) is easy to gun, spread and tool.
- Streamlines preparation by eliminating the need for joint reinforcing tapes.
- Silane functional polymer provides superior long term adhesion, crack filling and weathering characteristics.
- Bonds to most common building materials without priming.
- Single component formulation saves time and requires no mixing.
- Fills open joints and seams up to ½-inch (13 mm)
- Bonds and cures in wet weather and on damp substrates. Tolerates rain immediately after application.
- Compatible with most sealants and waterproofing or air barrier components.
- Solvent free. Isocyanate free. Phthalate free. Complies with all VOC regulations.
- No shrinkage. No staining. No yellowing.
- Breathable – allows damp surfaces to dry.
- Will not support mold growth.