R-Guard Joint & Seam Filler

PROSOCO R-Guard Joint & Seam Filler is a fiber-reinforced, gun-grade STP detailing compound used to prepare sheathing joints, seams, and cracks before applying R-Guard fluid air and water barriers.

What it does

It eliminates the need for joint reinforcing tapes by filling and bridging gaps directly with a fiber-reinforced silyl-terminated polymer that bonds and cures in wet weather, on damp substrates, and tolerates rain immediately after application.

When and where to use it

• Sealing sheathing joints at inside and outside corners
• Filling cracks and voids before R-Guard fluid AWB coatings (Cat 5, Spray Wrap MVP, etc.)
• Repairing voids in installed barriers
• Vertical or horizontal above-grade applications on concrete, masonry, natural stone, structural sheathing, architectural metals, glass, PVC, FRP, EPDM, and more

Key benefits

• Solvent-, isocyanate-, and phthalate-free
• Bonds and cures in wet weather and on damp substrates
• Long-term adhesion, crack filling, and weathering performance
• LEED verified, SCS Indoor Advantage Gold, Declare label, LBC Red List Free
• CALGreen compliant

Format

29 oz tubes and 20 oz sausages. Coverage 60.5–93.5 lineal feet per 29 oz tube depending on bead size.