Manual Expanding Foam Spray Gun | Polyurethane Gap Sealing Tool

Manual Expanding Foam Gun for Sealing, Filling & Insulating

Take your home renovation and weatherproofing projects to the next level with this professional-grade Manual Expanding Foam Spray Gun. Engineered from durable plastic and alloy components, this lightweight yet sturdy tool makes it easy to inject polyurethane expanding foam precisely into gaps around windows, doors, walls, and more — with minimal waste and maximum control.

Key Features

• Precision Spray Control: A sprung trigger mechanism gives you accurate, consistent foam output every time, reducing mess and over-application.
• High Output Performance: Maximum injection rate of 10 L/min with a maximum output pressure of 70 MPa for efficient, fast application.
• Ergonomic Design: Comfortable grip designed for extended use — tackle big projects without hand fatigue.
• Corrosion & Wear Resistant: Built with alloy and high-quality plastic for long-lasting durability, even with regular use.
• Easy to Clean: Designed for hassle-free maintenance, keeping your tool ready for the next job.
• Compact & Lightweight: Easy to maneuver in tight spaces around frames, baseboards, and cavities.

Specifications

• Material: Plastic + Alloy
• Maximum Output Pressure: 70 MPa
• Best Shooting Distance: ~10 mm
• Maximum Injection Rate: 10 L/min
• Spray Width: ~5 mm

Ideal Uses

• Sealing gaps around window and door frames
• Filling wall cavities and cracks for insulation
• Home renovation, weatherproofing, and draft-proofing projects
• DIY construction and professional building applications

Package Contents

• 1 × Expanding Foam Spray Gun

Made in Mainland China.

For additional guidance on home insulation and sealing best practices, visit the U.S. Department of Energy – Air Sealing Your Home.

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Frequently Asked Questions

Q: What type of foam canisters are compatible with this expanding foam spray gun?

A: This manual expanding foam spray gun is designed to work with standard polyurethane expanding foam canisters that feature a compatible nozzle fitting. Always check canister compatibility before use. Most standard construction-grade foam cans on the market are suitable.

Q: How do I clean the expanding foam gun after use?

A: The gun is designed for easy cleaning. After use, while the foam is still uncured, you can use a foam gun cleaner or acetone-based solvent to flush through the mechanism. Regular cleaning after each use will significantly extend the life of your tool.

Q: Is this foam gun suitable for both professional and DIY home use?

A: Absolutely! This expanding foam spray gun is ideal for both DIY enthusiasts and professional tradespeople. Its ergonomic design, precision trigger control, and durable construction make it well-suited for everything from small home repair jobs to larger renovation projects.

Q: What is the best shooting distance for optimal foam application?

A: The optimal shooting distance for this foam gun is approximately 10 mm from the target surface. Maintaining this distance helps ensure consistent foam bead width of around 5 mm for precise gap filling and sealing.