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GacoFireStop2 Open Cell Foam

GacoFireStop2 is a water-blown spray-applied system that cures to a distinctive orange colored semi-rigid low density foam. The cured product is dimensionally stable in all weather conditions and its insulating properties do not significantly diminish over time. It is safe for the environment, containing no CFC’s, HCFC’s, formaldehyde or ozone depleting chemicals. GacoFireStop2 is a Class 1 fire rated foam. GacoFireStop2 meets the requirements of AC377 Appendix X for use in attic and crawl spaces without an additional ignition barrier.

TECHNICAL INFORMATION: GacoFireStop2 forms a completely sealed air barrier in wall cavities, attics and crawl spaces. Its performance is superior to commonly used fiberglass batt and loose fill insulation. It adheres to most building materials and will provide a continuous barrier against air infiltration for the life of the building. GacoFireStop2 is semi-rigid in nature but is flexible enough to withstand normal expansion and contraction of building components. Yields up to 15,000 board feet per set (1,020 lbs) are possible under optimum conditions. 

The first single-application, open cell spray foam insulation of its kind that requires no additional ignition barrier is now even better!

  • Higher yields.
  • Better performance.
  • Standard ISO.
  • Sustainable.

Contractors and Builders will appreciate everything GacoFireStop2 offers.



  • Higher Yields, Better Product Performance
  • Standard ISO Reduces Handling Costs
  • No Additional Ignition Barrier Needed
  • Single Step Installation Saves Time and Money
  • Quick, Easy Code Approval – Reduced Legal Liability



  • No Additional Ignition Barrier Needed
  • Improve Air Seal and R-Value
  • Exceeds New Building Codes
  • Save Money on HVAC Systems
  • Sustainable – High Bio-Renewable Content



See a complete list of available brochures, specifications, test reports and case histories in the green area on the top right of the page. 

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