Kraken Bond Fastcoat Fire Rated Spray Foam Insulation - High R-Value

In this review of Kraken Bond Fastcoat Fire Rated Spray Foam Insulation, the bottom line is straightforward: this kit is best for homeowners and professionals who need a safer, high-performance closed-cell foam for attics, walls, or crawl spaces. The biggest reason to buy is the combination of a Class-A fire rating and a high thermal performance (R-Value 5.66/inch), which delivers both improved energy efficiency and enhanced acoustic dampening compared with batt insulation. The kit ships as a ready-to-use set so projects can start quickly, making it attractive to DIYers who want a complete solution.

Key Features

• Class-A fire rating: Provides enhanced fire resistance that meets ASTM E84 standards for safer installation in living spaces.
• High thermal performance: Closed-cell foam with about R-Value 5.66 per inch reduces heat transfer and helps lower heating and cooling loads.
• Complete application kit: The package includes 12 cans, an ergonomic gun, foam cleaner, safety goggles, worksuit, and gloves so users can begin work immediately.
• Versatile adhesion: Bonds to most building materials and forms a watertight, airtight seal that blocks drafts and pests when applied correctly.
• Temperature guidance: Optimal results when cans are at about 68F, with a usable range from 41F to 86F for flexible jobsite conditions.
• Acoustic benefits: Dense, closed-cell application helps reduce airborne noise in studio environments and other rooms requiring sound control.

Who It's For

This product is ideal for homeowners improving attic or crawl space insulation, contractors tackling wall cavity sealing, and hobbyists insulating small studio rooms where both thermal and acoustic performance matter. The included gun and PPE make it particularly convenient for those who want a single purchase that covers application and cleanup.

Those who should look elsewhere include users needing open-cell foam characteristics (more flexibility and breathability) or projects that demand custom spray rigs and large-volume commercial dispensers; this 12-can kit is designed for medium-scale residential work rather than continuous industrial production.

Pros & Cons

Pros

• Class-A fire rating adds a layer of safety for household installations.
• High R-Value per inch delivers efficient thermal performance in limited cavity depths.
• Complete kit format gets a job started immediately without sourcing extra tools.
• Closed-cell foam provides moisture resistance and improved acoustic isolation.

Cons

• Some customers report inconsistent adhesion or defective cans, so quality control can vary between batches.
• Coverage reports are mixed; actual board-foot yield may differ from expectations on complex surfaces.

Specifications

Product Type	Closed-cell expanding polyurethane spray foam
Pack Size	12 cans
Coverage	Approximately 240 board ft (kit total, advertised)
R-Value	5.66 per in
Fire Rating	Class-A (meets ASTM E84)
Included Accessories	Application gun, foam cleaner, goggles, worksuit, gloves
Application Temperature	Optimal 68F; usable 41F to 86F

Our Verdict

Kraken Bond Fastcoat is a practical, value-minded kit for residential and light-commercial insulation where fire safety and high R-Value matter. It is most worthwhile for users who want a complete package and the moisture resistance of closed-cell foam; however, buyers should inspect cans on arrival because some customers report occasional defects and mixed coverage outcomes.

Frequently Asked Questions

Is this kit ready to use out of the box?
Yes. The kit includes 12 cans, an application gun, foam cleaner, and PPE so a user can begin work immediately once cans are at recommended temperature.

What temperature should the cans be for best results?
For best performance bring cans to about 68F; the product works in a 41F to 86F range but cold cans can reduce expansion and adhesion.

Can it be used for acoustic treatment in a studio?
Yes. The dense closed-cell foam improves acoustic dampening and helps seal gaps, making it suitable for studio environment sealing and sound isolation work.