Soudal Soudafoam Window & Door Acoustic Low Expansion Foam Gun Grade

Soudal Soudafoam Window and Door Acoustic is a low expansion, moisture-curing polyurethane foam formulated specifically for sealing gaps around window and door frames. If you need a window expanding foam that does the job without blowing out frames or pushing seals out of shape, the low expansion formula is exactly what you want. It fills the gap, stays put, and gives you a solid thermal and acoustic barrier without the drama of a standard high-expansion foam.

The gun-grade format means it is applied through a foam gun with a trigger mechanism, giving you accurate, controlled delivery one-handed. That matters when you are working around a frame that needs a consistent bead, not a splurge. The Genius Gun applicator that Soudal designed for this foam gives you reliable trigger control and a clean finish, which saves time on trimming and cleaning up afterwards.

Acoustic and Thermal Performance of Soudafoam Window and Door Foam

The acoustic insulation properties of this foam make it genuinely useful in situations where sound transmission through frame gaps is a concern. New builds, refurbishments, and commercial fit-outs where building regulations require acoustic performance all benefit from a foam that is specified for the job rather than a general-purpose product pressed into service. The thermal insulation values are equally strong, helping to eliminate cold bridging and draughts around the perimeter of frames where standard mastic alone would not be sufficient.

Resistance to water, heat, and ageing means the foam maintains its performance over time. It will not shrink back or degrade in typical building conditions, and once fully cured it can be cut, sanded, plastered, and painted. That makes it straightforward to finish flush with the surrounding surface without needing to apply additional build-up material.

Reusable Canister for Up to Six Weeks

One of the more practical features here is the reusability. Fit the bung after use and the canister stays workable for up to six weeks. That is a significant advantage on site when you are not always running through a full can in one session. Many foam products are effectively single-use once opened, so the extended shelf life between uses reduces waste and saves money on partially used canisters that go off overnight.

Soudal Soudafoam Window and Door Acoustic Low Expansion Foam is a product that fits naturally into the workflow of window installers, joiners, and general builders who are fitting frames on a regular basis. It is also a sensible choice for anyone fitting internal door linings where acoustic performance between rooms matters. The gun-grade format gives you the control and economy of application that a professional fitting job demands, and the foam’s specified properties mean you are covered on both thermal and acoustic performance criteria.