Gorilla Pro Expanding Foam 400ml Aerosol

$19.30 - $19.30

$19.30 incl. GST

$19.30 - $19.30

$19.30 incl. GST

Overview

When gaps, draughts, or awkward voids need sealing, Gorilla Pro Expanding Foam gets the job done without fuss. This one-component polyurethane foam comes ready to use in a can, expands to fill cavities, and sets into a firm, waterproof barrier once cured. No applicator gun is needed, so you can keep moving on site without hauling extra gear.

Quantity

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Key Features

Expands to fill large and small cavities, locking into place.
Strong adhesion to most building materials, including timber, concrete, and metal.
Provides insulation against noise and temperature transfer.
Seals out water and air when the cured surface is kept intact.
BRANZ Appraised, so it stacks up for NZ building requirements.
CFC-free propellants, supplied in a 400ml aerosol.

Where to Use It

Tradies reach for this foam when lining up door frames, filling around window units, or sealing the gaps in subfloors where cold air sneaks through. It is also a solid choice for general construction, roofing, plumbing, and anywhere you need to block sound or stop draughts from working their way inside.

How to Use

Shake the can well before use. Apply the nozzle into the cavity and release foam slowly, allowing room for expansion. The foam will continue to grow as it cures, so do not overfill. Once hardened, trim any excess with a sharp blade. Always wear gloves, as uncured foam sticks fast to skin and clothing.

Compatible Surfaces

Bonds neatly to most common building substrates, including:

Timber framing
Concrete and masonry
Metal surfaces
Plasterboard
Some plastics (test a small patch if unsure)

Appearance

Off-white foam that expands rapidly and cures to a rigid, closed-cell structure. Once trimmed, it can be painted or covered to blend in with surrounding surfaces.

Pro Tip

If you are working in colder parts of NZ, warm the can in a bucket of lukewarm water before use. This helps the foam expand more evenly and gives a cleaner finish with less waste.

Expands to fill large and small cavities, locking into place.
Strong adhesion to most building materials, including timber, concrete, and metal.
Provides insulation against noise and temperature transfer.
Seals out water and air when the cured surface is kept intact.
BRANZ Appraised, so it stacks up for NZ building requirements.
CFC-free propellants, supplied in a 400ml aerosol.

Bonds neatly to most common building substrates, including:

Timber framing
Concrete and masonry
Metal surfaces
Plasterboard
Some plastics (test a small patch if unsure)

Off-white foam that expands rapidly and cures to a rigid, closed-cell structure. Once trimmed, it can be painted or covered to blend in with surrounding surfaces.

Pro Tip

If you are working in colder parts of NZ, warm the can in a bucket of lukewarm water before use. This helps the foam expand more evenly and gives a cleaner finish with less waste.

Downloads

How to use guide or featured videos

GORILLA Pro Expanding Foam 400

- Expanding polyurethane foam, Insulates, Adheres, Waterproofs.

- Stops air transmission

- Subfloors, Doorframes windows

- BRANZ Appraised
- No more big gaps, no more mess
- Insulates
- Fills cavities

Please be aware, this product is considered a dangerous good and the amount able to be purchased may be restricted. Loading and transportation requirements apply to you when purchasing or collecting this product.

Gorilla PRO Expanding Foam is a one-component, self expanding, ready to use polyurethane foam. CFC Free Propellants. Remains waterproof providing the integrity of the skin is maintained of the cured foam. No applicator gun required.

Frequently Asked Questions

1. Is Gorilla Pro Expanding Foam waterproof?
Yes. Once fully cured and the outer skin is intact, the foam forms a waterproof barrier. It keeps out moisture in subfloors, window frames, and other exposed spots, but always finish it properly to stop water sneaking in.

2. Can I use this foam outdoors?
You can, but the cured foam needs to be protected. UV light and weather will break it down over time, so cover it with paint, sealant, or cladding for long-term durability.

3. How much does the Gorilla Pro Expanding Foam expand?
The foam expands several times its original volume. Always fill cavities gradually and leave room for growth, otherwise you risk overflow or pressure on the surrounding structure.

4. What safety steps should I take when using the Gorilla Pro Expanding Foam?
Wear gloves and safety glasses. The foam is extremely sticky before curing and is hard to remove from skin, clothing, and tools. Also make sure you are working in a well-ventilated area.

5. Can I sand or paint over it once cured?
Yes. After trimming the excess, the hardened foam can be sanded back or painted so it blends into the surrounding finish. That’s handy when you want a tidy, invisible repair.

Shipping and Return Policy

At Surtec, we aim to make your experience as seamless as possible. Orders are processed efficiently through our Auckland branches and distributed nationwide via our growing logistics network. For any queries about delivery times, product availability, or returning an item, feel free to get in touch with our team. We're here to help you keep your projects moving.