Gorilla Spray Foam Sealant Light Gray 12 oz (Pack of 6)

In this review of Gorilla Spray Foam Sealant, the bottom line is simple: this multi-purpose, light gray polyurethane foam is best for DIYers and pros who need a fast, durable way to fill gaps up to 1 in and seal out air, moisture, and pests. The single biggest reason to buy is its reliable expansion and fast tack-free time, which makes it practical for window and door installations as well as general insulation tasks. Customers praise the quality and ease of use, though occasional clogging and surface stickiness are mentioned as caveats.

Key Features

• Multi-purpose formula: Expands to fill gaps and cracks up to 1 in, making it versatile for repair and insulation jobs around the house.
• Fast dry: Dispensed product becomes tack free in about 8-12 minutes and is trimmable in 45 minutes, speeding up project turnaround.
• No warping or bowing: The formula meets AAMA 812-19 standards so it is safe to use around windows and doors without causing deformation.
• No shrinkage: When cured the foam maintains its integrity through temperature swings, reducing need for repeat applications.
• Broad material compatibility: Bonds to wood, metal, glass, masonry and more, which makes it suitable for a variety of indoor and outdoor tasks.
• UV resistance and durability: Designed for minimal outdoor degradation so exposed areas retain performance longer than basic foams.

Who It's For

This product is ideal for homeowners, handymen, and contractors who need a fast-setting expanding foam for sealing around windows, doors, attics, crawlspaces, and utility penetrations. It is useful for HVAC and plumbing sealing tasks where a stable foam that does not bow framing is important.

It is less suited to users who require a completely non-sticky finish right away or who need a colored finish guaranteed to remain unchanged long term; some customers report stickiness to tools and occasional color durability concerns. If you need an application-specific industrial foam with proprietary dispensing hardware, consider a specialized trade product instead.

Pros & Cons

Pros

• Fast tack-free and trimmable time lets projects move quickly without long wait periods.
• Meets AAMA 812-19 to avoid warping at windows and doors, which preserves framing integrity.
• Good adhesion and flexibility across many materials including wood, metal, glass and masonry.
• Durable formulation resists shrinkage and has UV resistance for limited outdoor exposure.

Cons

• Can be sticky during application and adheres to tools and surfaces if not handled carefully.
• Some users report clogging of cans and occasional color durability concerns over time.

Specifications

Product type	Polyurethane spray foam sealant
Color	Light gray
Net weight per can	12 oz
Pack size	6 cans
Max gap fill	Up to 1 in
Tack free time	8-12 minutes (trimmable in 45 minutes)
Standards	Meets AAMA 812-19 (no warping/bowing)

Our Verdict

Gorilla Spray Foam Sealant is a solid, practical choice for general sealing and insulating tasks where a fast-setting, non-shrinking foam is required. It offers good material compatibility and meeting AAMA 812-19 is a key advantage for window and door work. While occasional stickiness and clogging are possible, its overall durability and ease of use make it good value for homeowners and professionals handling routine gap-sealing jobs.

Frequently Asked Questions

Can this foam be used outdoors?
Yes, the formula has UV resistance for minimal outdoor degradation, but exposed areas should be monitored and painted or covered if long-term UV exposure is expected.

How long until the foam can be trimmed?
The foam is tack free in about 8-12 minutes and can generally be trimmed in 45 minutes after application.

Will it cause windows or doors to bow?
No, this sealant meets AAMA 812-19 and is formulated to avoid warping or bowing when used around frames.