Soudabond Timber is a gun-applied PU adhesive foam gel that collapses into a high-strength bonding gel on contact. Fast curing, high yield, and purpose-built for timber sheet materials and subfloor decking. One can replaces up to 12 standard cartridges.
Soudabond Timber PU adhesive foam is a gun-grade polyurethane bonding product designed specifically for heavy-duty timber applications. Applied through a standard foam gun, it starts as an expanding foam and collapses almost immediately into a dense, high-strength adhesive gel that grips timber sheet materials firmly and fast. If you’ve ever spent time wrestling with cartridge guns on a subfloor job, this changes the workflow considerably.
The collapsing gel behaviour is what makes this product stand out. Rather than curing as a rigid foam, it settles into the bond line and fills small surface irregularities as it goes. On subfloor decking, that’s particularly useful. Minor undulations in OSB or plywood that would otherwise cause movement and squeaking are taken up by the gel before it cures. It’s one of those small things that makes a noticeable difference six months after the job is done.
Soudabond Timber PU Adhesive: Coverage and Efficiency
Coverage is where this product makes a strong practical case. A single can of Soudabond Timber delivers equivalent yield to approximately 12 conventional adhesive cartridges. On a large subfloor or flooring installation, that means far fewer interruptions to swap cartridges, less waste, and a lower material cost per square metre than most traditional options. The gun grade application also lets you work at a reasonable pace without the grip fatigue that comes with heavy cartridge systems.
Fast Cure for Fast Trades
The fast-curing formulation means you’re not waiting around before loading the next boards. In practice, this keeps the installation moving and reduces the risk of applied adhesive skinning over before the substrate goes down. The soudabond timber pu adhesive foam formula is compatible with all common wood sheet materials including OSB, chipboard, and plywood, making it a straightforward choice across a range of floor and wall substrate applications.
For any trade professional dealing with timber sheet installation at volume, this is a product worth having on the van.
Pro Tip: Always fully depress the trigger and keep the gun moving at a steady pace as you apply, because dwelling too long in one spot produces more foam than the gel can absorb and you may end up with residue to trim back.
Soudabond Timber is used wherever wood sheet materials need to be bonded securely and quickly. Its primary application is subfloor installation, where it bonds OSB, chipboard, and plywood decking to joists while filling minor surface irregularities that would otherwise lead to floor movement and squeaking over time. It works equally well for wall sheathing and general timber boarding work on construction sites.
Flooring contractors, site carpenters, and general builders all use this type of product as a standard part of subfloor and decking installation. It suits both new builds and renovation work where large areas of boarding need to go down efficiently.
Best For
Subfloor decking installation
Bonding OSB and chipboard sheets
Plywood to joist bonding
Preventing squeaky floors
Wall sheathing and boarding
High-volume flooring jobs
Compatible Surfaces
OSB (oriented strand board)
Chipboard flooring panels
Structural plywood
Timber joists and battens
Engineered wood substrates
Key Properties
Collapsing PU foam gel formula
Fast curing
High yield: equivalent to approx. 12 cartridges per can
Gun grade application
Fills small surface irregularities
Heavy-duty bond strength
Not suitable for: Not suitable for bonding non-porous materials such as glass, metals, or smooth plastics. Not intended as a gap-filling expanding foam where structural void fill is required.
Fit the can to a standard PU foam gun and adjust the flow control before starting. Apply a continuous bead or serpentine pattern directly to the joist or substrate surface. Work at a steady pace to keep bead size consistent. The foam will expand briefly then collapse into a gel, so lay the sheet material down promptly and apply firm, even pressure across the board.
On subfloor work, walking across the boards immediately after laying helps seat them into the adhesive gel before it cures. Screwing down at the same time as bonding will give the best results on floating or semi-fixed decking systems. Clean any uncured adhesive from tools and gun components with PU foam cleaner before it sets.
Fit the Soudabond Timber can to a clean, compatible PU foam gun
Test the bead onto a scrap surface and adjust the gun's flow control to get a consistent bead size
Apply the adhesive in a continuous bead or serpentine pattern along the joist or substrate surface
Work in manageable sections so the adhesive does not skin over before the board goes down
Place the timber sheet immediately and press firmly across the full surface to seat it into the collapsing gel
Walk across the boards or use a dead-blow mallet along edges to ensure full contact
Screw or fix the boards down while the adhesive is still fresh for best results
Clean the gun nozzle and any adhesive residue from equipment with PU foam cleaner before it cures
How does Soudabond Timber compare to standard cartridge adhesive for subfloor work?
One can of Soudabond Timber covers the equivalent of around 12 standard adhesive cartridges, so you spend less time swapping out product and more time actually laying boards. The collapsing gel formula also fills minor surface irregularities as it cures, which standard cartridge adhesives don't do as effectively. For large floor areas it's generally faster and more economical.
Does it work with all types of foam gun?
Soudabond Timber is a gun-grade PU foam product, so it requires a standard PU foam applicator gun rather than a cartridge gun. Make sure the gun is clean and in good working order before use, and flush it through with PU foam cleaner after the job to keep it in usable condition for next time.
Soudabond Timber is a one-component polyurethane adhesive foam formulated to expand on application then collapse rapidly into a dense adhesive gel. The PU chemistry provides a high-strength, fast-curing bond that is compatible with wood-based panel products. The collapsing action is a key part of the formulation, ensuring the adhesive conforms to the bond surface without the voids and rigidity associated with conventional expanding foam products.
Product Type
One-component PU adhesive foam gel
Application Method
Gun grade (PU foam gun required)
Substrate Compatibility
OSB, chipboard, plywood, structural timber
Cure Type
Fast curing
Yield
Equivalent to approximately 12 standard adhesive cartridges per can
SKU
SOUDA-TIMBER
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