Kraken Bond Window & Door Expanding Foam Spray - Professional Sealant

In this review of the Kraken Bond Window & Door Expanding Foam Spray, the bottom line is simple: this 12-pack is aimed at professionals and serious DIYers who need a high-yield, precise foam for sealing gaps around doors and windows. The reviewer found the product's biggest advantage is its applicator-gun compatibility, which delivers controlled, reusable application and reduces waste compared with spray-only cans. For projects that require consistent insulation, waterproofing, and good adhesion, this foam is a practical choice.

Key Features

• Applicator gun compatibility: Works with a foam gun for precise application and higher yield, making it easier to fill narrow joints and bigger cavities with less mess.
• Low expansion formula: Designed for window and door frames to limit pressure on surrounding materials while still providing effective gap filling and adhesion.
• High insulation performance: Provides thermal and acoustical insulation that improves energy efficiency and reduces drafts when used around openings.
• Eco-friendly propellants: Uses no ozone-depleting propellants, offering a safer environmental profile compared with older formulations.
• Waterproof and paintable: The cured foam is durable, can be trimmed, painted, and resists moisture for long-term sealing.
• High yield per can: Each can contributes to an overall high coverage, with total yield marketed up to 16 gallons depending on conditions.

Who It's For

The product suits contractors, installers, and experienced homeowners who use a separate applicator gun and want a reusable, high-yield polyurethane foam for doors, windows, pipe penetrations, and general gap filling. Its low-expansion formula and strong adhesion make it useful when avoiding distortion of frames and trim is important.

Less suitable are users who expect a disposable straw-style can for occasional small jobs, since a gun is required for best results and the package excludes the gun and cleaner. Beginners who need one-off, tiny touch-ups might prefer single-use cans with integrated nozzles.

Pros & Cons

Pros

• Gun-compatible delivery yields more usable foam and reduces waste compared with single-use cans.
• Strong thermal and acoustical insulation that improves sealing performance around openings.
• Environmentally preferable propellants and a waterproof, paintable cured surface for finishing.

Cons

• Requires a separate applicator gun and cleaner, which are not included, adding to upfront cost for occasional users.
• Yield varies with temperature and humidity, so actual coverage can be lower under some jobsite conditions.

Specifications

Our Verdict

Kraken Bond's foam is a solid choice for tradespeople and well-equipped DIYers who need consistent, high-yield sealing around doors and windows. Its gun-friendly design and strong insulation properties deliver good value when applied correctly, though beginners should account for the added cost and learning curve of a separate applicator gun.

Frequently Asked Questions

Do I get an applicator gun with the pack?
No, the pack includes foam cans only; a separate applicator gun and cleaner are required for best results.

Is this foam suitable for exterior use?
Yes, the cured foam is waterproof and paintable, making it suitable for many exterior sealing applications when trimmed and finished properly.

Will the foam damage window frames?
The low expansion formula is intended to limit pressure on frames, but careful application is still recommended to avoid overfilling.