PROSOCO R-Guard Joint & Seam Filler

PROSOCO R-GUARD JOINT & SEAM FILLER

Fiber-reinforced fill coat and seam treatment designed to create smooth transitions and provide flexible reinforcement for fluid-applied flashing membranes, waterproofing, or air barrier components.

FEATURES

• Streamlines Preparation: Eliminates the need for joint reinforcing tapes, saving time and effort.
• Versatile Application: Bonds and cures in wet weather and on damp substrates, with immediate rain tolerance.
• Durable Performance: Silane-functional polymer ensures superior long-term adhesion, crack filling, and weather resistance.
• Environmentally Friendly: Solvent-free, isocyanate-free, phthalate-free, and VOC-compliant.

OVERVIEW

R-Guard Joint & Seam Filler is a gun-grade crack and joint filler, adhesive, and detailing compound that combines the best properties of silicone and polyurethane. This single-component, fiber-reinforced, silyl-terminated polymer (STP) is easy to gun, spread, and tool. It simplifies surface preparation by eliminating the need for reinforcing tapes at sheathing joints and corners.

Ideal for use in all climates, Joint & Seam Filler bonds directly to damp or dry surfaces and cures under various weather conditions. It can be used as part of a building-wide air barrier system or to prepare surfaces for conventional waterproofing or air barrier components. Additionally, it repairs cracks and fills voids even after the primary air barrier is applied.

SUSTAINABILITY & TESTING

• ASTM E 2357
• ASTM E 2247
• ASTM E 331
• ASTM E 1233
• ASTM E 72
• AATCC-127
• NFPA 285 Compliant Wall Assemblies
• ASTM E 84
• Red List Free

AVAILABLE SIZES

• 29 oz tubes
• 20 oz sausages

PACKAGE QUANTITIES

• 20 oz sausages: 20 sausages per box
• 29 oz cartridges: 12 per box

TYPICAL COVERAGE RATES

• 60.5–93.5 linear feet per 29-oz tube
• 38.5–60.5 linear feet per 20-oz sausage

RESOURCES

• Product Data Sheet
• Safety Data Sheet
• VOC Compliance
• Product Test Data
• Product Test Results
• LEED Verification Letter
• SCS Certification
• Declare Label
• LBC Red List Conformant Product Summary
• Installation Guidelines