Sprayman Fire Block Foam Sealant with Straw Applicator, 12 oz

Sprayman Fire Block Foam Sealant with Straw Applicator is an easy-to-use fireproof foam spray specially designed for controlled sealing in tight or hard-to-reach areas. Expanding effectively, this fire stop foam creates an airtight, moisture- and mold-resistant barrier, ideal for small to medium gaps. Whether sealing around pipes, outlets, or wall penetrations, this fire spray foam enhances insulation, prevents air leaks, and helps reduce fire spread. Certified to meet ASTM E84201 and UL standards (ICC-ESL-1058), it's trusted by contractors and DIYers alike. For larger applications, check out our SPRAYMAN Pro Fire Block Foam - Gun Foam.

Features & Benefits

• Easy-to-Use Straw Applicator: Allows controlled, precise application even in narrow spaces.
• Reliable Fire Protection: Acts as a fire retardant foam, improving safety around utility penetrations.
• Strong Coverage: Expands to fill voids with durable, airtight insulation.
• Moisture & Mold Resistant: Protects against humidity, moisture, and mold growth.
• Paintable Finish: Foam can be trimmed and painted after curing to match surfaces.

Application Areas

• Wall & Ceiling Gaps: Perfect gap filler for sealing around electrical boxes, vents, and utility lines.
• Window & Door Frames: Insulates window and door frames against drafts and fire hazards.
• Fire-Rated Assemblies: Enhances fire safety in rated walls and ceilings as fireproof insulation.
• Tight Spaces: Ideal for small, hard-to-reach voids requiring precise sealing with fire foam spray.

How to Use

• Safety First: Use gloves in a well-ventilated area and avoid breathing vapor.
• Surface Prep: Clean and lightly moisten surfaces for better adhesion.
• Product Prep: Shake can well. Optimal usage at room temperature (~68°F (20°C)).
• Application: Attach straw, keep the can upside-down, and apply slowly from bottom upwards. Foam expands—avoid overfilling.
• Cleanup: Remove uncured foam immediately with an appropriate cleaner; cured foam must be removed mechanically. 
• Curing and Finishing: Foam is tack-free within 6±3 minutes and fully cures in 24 hours. Once cured, trim and protect from UV exposure by painting or covering. 

Specs

Volume: 12 oz
Color: Orange
Temperature Resilience: -40°F (-40°C) to +194°F (90°C)
Storage: Store in a cool, dry place; avoid temperatures above 122°F (50°C)
Shelf Life: 12 months (properly stored)
Certifications: ASTM E84201 / UL Classified (ICC-ESL-1058)