Soudal Gun Grade Expanding Foam (750ml)

Soudal Gun Grade Expanding Foam (750ml)

By Soudal · Model: Gun Grade PU Foam · Building Materials

Professional gun-grade polyurethane expanding foam for filling gaps, sealing around frames, and insulating voids in construction.

  • Gun-grade formula for precise application with a foam gun
  • Excellent adhesion to masonry, timber, concrete and uPVC
  • Expands to fill gaps and voids up to 50mm wide
  • Good thermal and acoustic insulation properties
  • Can be trimmed, sanded and painted once cured
  • 750ml can for extended use across multiple applications
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Overview

Soudal gun-grade expanding foam is a construction site staple used by virtually every trade. It fills the gaps between window and door frames and masonry, seals around pipe and cable penetrations, and provides both thermal insulation and air sealing. The gun-grade formula gives controlled application, avoiding the waste and mess of hand-held cans.

In-Depth Look

Expanding foam is one of those products that every trade uses but few think about until they need it. Soudal gun-grade is the one that most professionals reach for because it delivers consistent expansion, good adhesion, and reliable curing across a wide range of site conditions.

Gun Grade vs Hand-Held

Hand-held expanding foam cans are convenient for occasional use, but the straw applicator gives poor control and wastes product. A gun-grade can with a proper foam gun allows precise bead placement, adjustable flow, and the ability to stop and restart without the can clogging. For anyone using foam regularly, gun-grade pays for itself quickly.

Common Applications

The most common use is sealing around window and door frames, where the foam fills the gap between the frame and the masonry while providing thermal insulation and air sealing. It is also used to seal around pipe and cable penetrations through walls and floors, fill voids in masonry, and temporarily secure items during construction.

Verdict

Soudal gun-grade expanding foam is a van and site essential. The 750ml can provides enough foam for multiple applications, the gun-grade formula gives the control that professionals need, and the Soudal name guarantees consistent performance. Combined with a decent foam gun, it handles the majority of gap-filling and sealing tasks on any construction project.

Specifications
Volume750ml
TypeGun-grade polyurethane
YieldUp to 35 litres (free rise)
Tack-Free Time10-15 minutes
Full Cure12-24 hours
Temperature Range+5°C to +35°C application

Who It's For

  • Window and door installers sealing frames into openings
  • Builders filling gaps and voids around services and penetrations
  • Insulation installers sealing gaps between boards and framing

Pros & Cons

Pros

  • Gun-grade gives precise, controlled application
  • Excellent adhesion to all common building substrates
  • 750ml can provides good yield for multiple applications
  • Soudal brand is trusted by professionals across the industry

Cons

  • Requires a separate foam gun (not included)
  • Overexpansion can bow frames if applied too liberally
  • Must be used above +5°C for proper curing
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