
Soudabond Subfloor
| Code | Description | Size | Colour |
| 177486 | Soudabond Subfloor | 750 ml | Champagne |
| 119559 | Soudal Design Foam Gun | 100 cm | NA |
| 122129 | Soudal Foam Gun | 60 cm | NA |
| 175599 | Soudal Foam Gun – Gun Grade | N/A | |
| 175524 | Soudal Cleaner Expanding Foam Gun Grade | 500 ml | Clear |
Description:
Soudabond Subfloor is a ready-to-use, fast-curing polyurethane subfloor adhesive that bonds decking and panels to timber and metal joists, with one 750ml can replacing up to 12 cartridges of conventional solvent-based adhesive. On application it instantly collapses into a high-power gel, which reduces mess and gives you more control for a quicker, more precise install.
Soudabond Subfloor is applied with a long-handle gun to lift productivity on site and reduce the strain of working bent over. The formula bonds reliably to wet, damp and even frosty timber, so work keeps moving in the cold, wet conditions that are part of daily site life through a New Zealand winter. It is free from CFCs and HCFCs and is 100% solvent-free, giving a cleaner, more economical route to a permanent subfloor bond without trading away strength.
It sits within the wider construction adhesives range, and you can see how Soudabond Subfloor performed on a luxury Queenstown build for a real-world account of the time savings.
Why Choose Soudabond Subfloor?
On a subfloor, the adhesive choice decides whether the finished floor stays quiet and whether the gluing stage holds up the rest of the build.
One can does the work of 12 cartridges. A single 750ml can replaces up to 12 conventional adhesive cartridges, which cuts changeovers, waste and the number of empty tubes left on site.
Bonds to wet, damp and frozen timber. You do not have to wait for timber to dry before gluing, and because the bond holds at high moisture content, you avoid the shrinkage movement that leads to squeaky floors later.
Easier on the body. Paired with a long-handle gun, you can apply adhesive standing fully upright, which makes large flooring and roofing runs far kinder on your back.
Precise, controlled install. Limited post-expansion means panels stay where you set them, so the bond is accurate rather than lifting or shifting as it cures.

Features and Benefits:
- Replaces at least 12 cartridges: One can covers the work of a dozen construction adhesive cartridges, cutting both cost and downtime spent reloading.
- Saves application time by 25%: Far fewer changeovers and faster bead-laying speed up the gluing stage on every sheet.
- Fewer squeaky-floor callbacks: A strong bond even on high-moisture timber reduces the floor movement that causes squeaks and return visits.
- Excellent initial bond at low temperatures: Grabs early even in the cold, so you keep working through frosty mornings.
- Limited post-expansion: Panels stay precisely positioned for an accurate, fast install.
- Bonds to wet or frozen timber: Holds on damp and frosty substrates that solvent-based adhesives struggle with.
- Durable and water resistant: Does not age or rot and resists mould and mildew, so the bond lasts the life of the floor.
- 100% solvent-free, low VOC on curing: A cleaner product to work with indoors and on enclosed sites.
- Space and weight savings: One can takes up far less room on the ute and on site than a box of cartridges.
- Tested to ASTM E 84 and ASTM D3498: Backed by recognised performance and fire-spread testing
How it works
Speed Test – Cartrdiges VS Soudabond Subfloor
How to use & maintain your gun
Builders testimonial
Application:
- Bonding of all common types of subfloor to metal and timber joists and beams, plus other horizontal construction adhesive applications.
Instructions:
Prior to using the product, cover all adjacent areas for protection against soiling. In windy conditions, precautions must be taken to ensure that Soudabond Subfloor cannot contaminate components, objects or persons in the vicinity.Good ventilation must be ensured for indoor use.
Wear protective goggles and gloves. Tightly screw the can to the thread in the gun and shake the gun about 30 seconds with the valve pointing downwards so that the contents are mixed well to ensure an optimum adhesive quality and high yield. After extended periods of non-use, the can must be shaken again to obtain the required adhesive quality. With the control knob on the gun, adjust the adhesive bead to the required diameter (the emptier the can, the more the adjusting screw needs to be opened). The can must be held vertical during application.
- Apply the adhesive in uniform beads of 1 – 2 cm centrally onto the mounting studs. A distance of 1 – 2 cm must be maintained between the gun nozzle and substrate while spraying.
- Place the subfloor decking onto the gel adhesive within 20 minutes after dispensing. Do not remove and reapply panels as this will damage the adhesive structure and reduce the adhesive strength substantially. At high temperatures and low humidity in particular, curing can be accelerated by lightly spraying the adhesive bead with water.
- Once the panels are set, and while keeping pressure, secure the boards additionally with mechanical fasteners.
Application temperature:
- Surface temperature: -15°C to +35°C
- Can Temperature: +5°C to +25°C (optimal +15°C to +25°C)
- If required, slowly bring the can to the optimal temperature by placing in cool or leek water
You can buy Soudabond Subfloor from Soudal stockists across New Zealand. Use the Soudal Stockists page to find your nearest store and the matching foam guns for the job.
FAQs
What is Soudabond Subfloor used for?
Soudabond Subfloor bonds common subfloor decking and panels to timber and metal joists and beams. It also suits other horizontal construction adhesive jobs, including flooring and roofing cassettes assembled in factory environments.
How many adhesive cartridges does one can replace?
One 750ml can replaces up to 12 conventional adhesive cartridges. That cuts cartridge changeovers, waste and clean-up, and frees up storage space on the ute and on site.
Can Soudabond Subfloor be used on wet or frozen timber?
Yes, it bonds reliably to wet, damp and even frozen timber, unlike most solvent-based adhesives. This lets you keep gluing through cold, wet conditions without waiting for the timber to dry out.
Does Soudabond Subfloor help prevent squeaky floors?
Yes, because it bonds strongly even at high moisture content, you avoid the timber shrinkage and movement that causes squeaks as floors dry. It is a popular choice for second-storey floors where noise is a concern.
