Designed for Spray Foam Applications
The Fireshell F10E Thermal Barrier (SKU#236799) is formulated specifically for spray foam contractors. This water-based, intumescent coating expands in high heat to form a thick char layer, which blocks flame contact and reduces oxygen exposure to spray polyurethane foam (SPF). It is safe to use on both open-cell and closed-cell SPF insulation and complies with ICC-ES ESR 3997 for use as an alternative thermal barrier coating.
Ideal Interior Use Cases
Fireshell F10E is widely used in:
- Attics and crawl spaces
- Interior walls and ceilings
- FRP panel systems
- Any exposed SPF insulation requiring a fire-rated coating
Because it has low viscosity, contractors can apply it with standard airless sprayers like the Graco 695. For detailed areas, a brush or roller works well too.
Code-Compliant and Performance-Tested
This product meets a wide range of building code and environmental standards:
- ASTM E84 Class A Fire Rating (Flame Spread < 25, Smoke < 50)
- IBC 803.1.2.1 and 2603.9
- IRC R316.6 and R302.9.4
- FM 4975 fire-retardant coating listing
- LEED Certified and EPA Low-VOC compliant
These certifications make it a trusted solution in both residential and commercial spray foam projects.
Fast Application and Drying Time
Each gallon of Fireshell F10E covers 80–92 square feet. It becomes tack-free in as little as 45 minutes at 90°F and is ready for recoating in less than two hours. Once cured, it creates a flat finish that can be top-coated with latex paint if required.
The coating is available in a 5-gallon pail and should be stored between 45°F and 100°F. It is not suitable for exterior, submerged, or extremely humid environments.
Installer Safety and PPE Requirements
When applying Fireshell F10E, contractors must follow safety guidelines. Required personal protective equipment (PPE) includes:
- Chemical-resistant coveralls
- Safety glasses with splash guards
- Rubber gloves
- Rubber or leather boots
Proper ventilation is key—especially in enclosed spaces. Use cross-ventilation with negative pressure, and avoid using combustion heaters, which add excess moisture and introduce safety hazards.
Why Spray Foam Pros Rely on Fireshell F10E
For contractors in the spray foam industry, the Fireshell F10E Thermal Barrier checks every box. It’s code-approved, fast-drying, easy to apply, and environmentally conscious. Whether you’re insulating an attic or a crawl space, Fireshell F10E provides reliable fire protection without adding complexity to your workflow.