Expanding Foam Spray Gun – Metal Polyurethane Caulking Tool

Expanding Foam Spray Gun – Professional Caulking & Sealing Tool

Take control of your home renovation projects with this heavy-duty Expanding Foam Spray Gun. Engineered from a robust plastic and alloy construction, this precision applicator is designed to deliver polyurethane expanding foam exactly where you need it — no mess, no waste, no guesswork. Whether you're sealing gaps around windows and doors or insulating cavities, this tool makes the job fast, clean, and professional.

Key Specifications

• Material: Plastic + Alloy
• Maximum Output Pressure: 70 MPa
• Optimal Shooting Distance: ~10 mm
• Maximum Injection Rate: 10 L/min
• Spray Width: ~5 mm
• Battery Required: No
• Made in: Mainland China

Why You'll Love It

• 🔧 Precision Application: Sprung trigger mechanism lets you accurately control foam output — perfect for tight gaps and hard-to-reach areas
• 🏗️ Versatile Use: Ideal for filling, sealing, and insulating gaps around windows, doors, pipes, and more
• 💪 Solid & Durable: Alloy components resist corrosion and wear for long-lasting performance on the job site or at home
• 🤝 Ergonomic Design: Comfortable grip allows for extended use without fatigue
• 🧹 Easy to Clean: Thoughtfully designed for quick and hassle-free maintenance
• ⚖️ Lightweight & Compact: Easy to manoeuvre in confined spaces without sacrificing durability

What's in the Box?

• 1× Expanding Foam Spray Gun Applicator

Perfect For

Home renovation enthusiasts, DIYers, builders, and tradespeople who demand accurate, efficient foam application for sealing, insulating, and filling. A must-have addition to your caulking and sealant toolkit.

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Safety & Handling

Always use polyurethane foam products in well-ventilated areas. For guidance on safe use of chemical sealants and foam products in the workplace and home, refer to OSHA's Chemical Hazards guidelines.

Frequently Asked Questions

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

A: This expanding foam spray gun is designed for use with standard polyurethane (PU) expanding foam canisters commonly available at hardware stores. Please check canister thread compatibility before purchasing foam canisters.

Q: Is this foam spray gun suitable for professional use, or just DIY home projects?

A: This caulking tool is built to handle both DIY home renovation tasks and light professional applications. Its alloy construction, 70 MPa maximum output pressure, and ergonomic trigger design make it a reliable choice for tradespeople and enthusiastic DIYers alike.

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

A: The gun is designed for easy cleaning. After use, discharge any remaining pressure and clean the nozzle and barrel with an appropriate foam gun cleaner or solvent (sold separately) before the foam cures. Regular cleaning prolongs the life of your tool significantly.

Q: Can this spray gun be used to seal gaps around windows and doors?

A: Yes! This is one of the primary use cases for this expanding foam spray gun. Its ~5 mm spray width and ~10 mm optimal shooting distance give you precise control to fill, seal, and insulate gaps around window frames, door frames, pipes, and other cavities in your home.