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Great Stuff Pro™ Gaps & Cracks Fireblock Foam Sealant, 30oz Pro Can

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Great Stuff Pro™ Gaps & Cracks Fireblock Foam Sealant, 30oz Pro Can
Great Stuff Pro™ Gaps & Cracks Fireblock Foam Sealant, 30oz Pro Can
Great Stuff Pro™ Gaps & Cracks Fireblock Foam Sealant, 30oz Pro Can
Great Stuff Pro™ Gaps & Cracks Fireblock Foam Sealant, 30oz Pro Can
Great Stuff Pro™ Gaps & Cracks Fireblock Foam Sealant, 30oz Pro Can
Great Stuff Pro™ Gaps & Cracks Fireblock Foam Sealant, 30oz Pro Can
Great Stuff Pro™ Gaps & Cracks Fireblock Foam Sealant, 30oz Pro Can
Great Stuff Pro™ Gaps & Cracks Fireblock Foam Sealant, 30oz Pro Can

Great Stuff Pro™ Gaps & Cracks Fireblock Foam Sealant, 30oz Pro Can

$22.79
SKU: DOW 00341558
Shipping: Free Shipping
In Stock!
Description

GREAT STUFF PRO™ Gaps & Cracks is a minimal-expanding, gun-applied, single-component polyurethane foam sealant designed for professional air sealing and insulating jobs. Formulated to seal gaps up to 3 inches, it creates a durable, water-resistant, and airtight barrier that improves energy efficiency and prevents air infiltration, moisture, and pest entry. The product is fireblock-rated, UL classified, and ideal for use in both interior and exterior applications.

Features & Benefits

  • Expands to seal gaps up to 3 inches (76 mm)
  • Airtight and water-resistant seal to improve energy efficiency
  • Fireblock formulation: Helps impede the spread of flames, smoke, and gases
  • Fast tack-free time: 3 to 10 minutes; trimmable in 60 minutes
  • High yield:
    - 24 oz can = ~22 tubes of caulk
    - 30 oz can = ~33 tubes of caulk
  • Orange color for easy visual inspection
  • Paintable, stainable, and sandable after cure
  • Reusable for 30 days with GREAT STUFF PRO™ gun
  • Adheres to a variety of building materials
  • Interior and exterior approved use
  • UL Classified (UL R13655)

Technical Data

Property Value Test Method
Flexural Strength 8.8 psi (60.7 kPa) ASTM C203
Compressive Strength 9.3 psi (64.1 kPa) ASTM D1621
Tensile Strength 14.4 psi (99.3 kPa) ASTM D1623
Closed Cell Content 80% ASTM D2856
Apparent Core Density 1.01 pcf (16 kg/m³) ASTM D1622
Thermal Resistance (R-value/inch) R-3.8 (K-factor: 0.26) ASTM C518
Dimensional Stability 14.3% @100°F/100% RH, 0.41% @ -40°F ASTM D2126
Tack-Free Time 5–10 minutes —
Trimmable Time Within 60 minutes —
Max Service Temp (cured) 240°F (116°C) —

Recommended Applications

  • Plumbing penetrations
  • Electrical penetrations
  • Sill plates and rim joists
  • Attic access points
  • HVAC duct gaps
  • Outdoor fixtures and utility inlets
  • Around pipe chases, wire holes, foundation gaps, and more
  • Ideal for basements, crawlspaces, attics, and other utility spaces

Common Substrates

  • Wood
  • Metal
  • Masonry
  • Glass
  • PVC and other plastics
  • Drywall and concrete

Application Details

Surface Prep:
  • Ensure surfaces are clean, dry, and free of dust, oil, grease, or release agents.
  • Slightly damp surfaces are acceptable.
Application Conditions:
  • Temperature Range: 40°F to 100°F (4°C to 38°C)
  • Relative Humidity: >20% for optimal curing
How to Apply:
  • Shake can vigorously.
  • Attach to GREAT STUFF PRO™ foam dispensing gun.
  • Apply foam into gaps no larger than 3" in width.
  • Allow foam to expand and cure.
  • Trim excess after ~60 minutes.
  • Leave can attached to gun for up to 30 days for reuse.
Safety Precautions:
  • Use in a well-ventilated area.
  • Keep away from open flames and heat sources.
  • Wear gloves, eye protection, and long sleeves.
  • Contains isocyanates; avoid skin and inhalation exposure.
Clean Up:
  • Use GREAT STUFF PRO™ Foam Cleaner for uncured foam.
  • Cured foam must be mechanically removed.
Storage & Shelf Life:
  • Store upright, indoors at ≤75°F (24°C).
  • Do not expose to temps >120°F (49°C).
  • Shelf life: 12 months from manufacture date.

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