All-Metal Expanding Foam Spray Gun for PU Sealant

Professional Foam Spray Gun for Accurate PU Sealing

This all-metal expanding foam spray gun is designed for precise application of polyurethane (PU) foam during renovation, repair, and insulation work. Constructed from robust metal components, it offers reliable durability and stable performance, even under frequent use. The ergonomic handle and smooth trigger mechanism help deliver a controlled, consistent foam bead, reducing waste and improving finish quality on every project.

The gun connects to standard polyurethane foam cans and allows you to regulate flow with a finely adjustable control knob. This makes it suitable for filling gaps, cracks, and cavities around windows, doors, frames, pipes, wall penetrations, and other hard-to-reach areas. Its slim, elongated barrel helps you reach into narrow spaces where conventional tools and nozzles struggle, supporting a clean, professional result with minimal cleanup.

Why It's a Smart Choice

• All-metal construction - Rigid body and metal trigger for long service life and stable performance on site or at home.
• Precise flow control - Adjustable valve and responsive trigger let you fine-tune foam output for small gaps or larger cavities.
• Improved insulation and sealing - Supports effective air and moisture sealing when used with PU foam, helping reduce drafts and energy loss.

FAQ

Q: What type of foam cans does this gun work with?
A: It is designed for use with standard screw-on polyurethane expanding foam cans (gun-grade PU foam). Always check compatibility with your foam manufacturer.

Q: Is this suitable for both DIY users and professionals?
A: Yes. The simple trigger operation is accessible for homeowners, while the metal construction and control accuracy meet the needs of contractors and tradespeople.

Q: How do I clean the foam gun after use?
A: For reusable performance, clean the gun immediately after work using a compatible foam cleaner can. Attach the cleaner, flush the gun until clear, and wipe external surfaces according to the cleaner's instructions.

Q: Can it be used in damp or basement areas?
A: When paired with moisture-resistant PU foam, it is suitable for sealing joints and gaps in basements, attics, and other areas prone to humidity, following local building and safety guidelines.