Sika Boom®-121 Insulation – 20 Board Feet One-Component Polyurethane Spray Foam

Sika Boom®-121 Insulation is a one-component, straw-applied polyurethane spray foam designed to provide thermal and sound insulation for a variety of residential and building applications.

With coverage of up to 20 board feet and an insulation rating of approximately R-5.66 per inch, this expanding foam provides excellent thermal insulation and adhesion to many common building materials. It can be used for air sealing, insulating, eliminating thermal bridges, and sealing areas such as rim joists, roofs, attics, basements, interior walls and interfloor overlaps.

The foam can be applied at temperatures from 5°C to 30°C, is paintable after curing, and does not contain propellant gases.

• One-component polyurethane spray foam
• Straw-applied application
• Up to 20 board feet coverage
• R-value of approximately 5.66 per inch
• Thermal conductivity: 0.025 W/m·K at 20°C
• Excellent adhesion to many building materials
• Suitable for thermal and sound insulation
• Helps provide air sealing and insulation
• Helps eliminate thermal bridges
• Paintable after curing
• Application temperature: 5°C to 30°C
• Light yellow colour
• Full cure in approximately 24 hours
• Tack-free time: approximately 4 minutes
• Service temperature: -40°C to 80°C

Sika Boom®-121 Insulation can be used for:

• Rim joist sealing
• Roof insulation
• Attic insulation
• Basement insulation
• Interior wall insulation
• Interfloor overlapping areas
• Air sealing
• Thermal insulation
• Eliminating thermal bridges

• Brand: Sika
• Product: Sika Boom®-121 Insulation
• Product Type: One-component polyurethane spray foam
• Application: Straw-applied
• Colour: Light Yellow
• Net Volume: 807 mL
• Net Weight: 775 g per can
• Coverage: 20 board feet
• Yield: Up to 3 m² at 1.5 cm thickness
• R-Value: 5.66 per inch
• Thermal Conductivity: 0.025 W/m·K at 20°C
• Density: 15 ± 1 kg/m³
• Compressive Strength: 0.03 MPa
• Service Temperature: -40°C to 80°C
• Application Temperature: 5°C to 30°C
• Tack-Free Time: Approx. 4 minutes
• Full Cure: Approx. 24 hours
• Fire Resistance: B3 class of cured foam
• Shelf Life: 18 months from production date
• Storage Temperature: 5°C to 25°C
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1 can / 12 cans per case