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Poly

Poly Expanding Foam Aerosol 390g White - Paintable Sandable Polyurethane Gap Filler

★★★★★
117 reviews · 220+ sold
$34.65 $51.98 -33% OFF
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Last purchased 18 minutes ago by someone in Geelong
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The Poly Expanding Foam aerosol is a 390g polyurethane foam that expands to fill large, irregular gaps and cavities. The self-expanding formula gets into awkward spaces, then cures so it can be trimmed, sanded and painted to finish the job.

  • Size: 390g aerosol
  • Colour: White
  • Material: Polyurethane foam
  • Paintable: Yes
  • Stainable: Yes
  • Sandable: Yes
  • Indoor and outdoor: Yes

This expanding foam is handy for filling gaps and cavities around frames, pipes and other openings indoors and out. Once cured it can be cut, trimmed, sanded, stained and painted, making it easy to blend into the surrounding surface for a neat finish.

More about this product

Poly 390g Expanding Foam is a one-component, self-expanding polyurethane foam filler designed for filling gaps and cavities.

This expanding foam is convenient to use with its one-pack system and cures to provide strong adhesion to most surfaces. It expands to fill large, irregular gaps effectively. Once cured, the foam can be cut, trimmed, sanded, stained and painted over.

  • Colour: White
  • Material: Polyurethane foam
  • Paintable, stainable and sandable
  • Suitable for indoor and outdoor use
  • Size: 390g aerosol

Questions & Answers

Can Poly Expanding Foam be painted?

Yes. Once cured, the foam is paintable and stainable, so you can finish it to match the surrounding surface.

Is this expanding foam sandable?

Yes, the cured foam can be sanded, as well as cut and trimmed, for a neat finish.

How much foam is in the can?

This is a 390g aerosol can of expanding polyurethane foam.

Can you use expanding foam more than once?

Expanding foam is generally a single-use product once the can is activated. Plan your application so you can use the contents in one session.

Where can I use this expanding foam?

It is suitable for indoor and outdoor use, filling gaps and cavities around frames, pipes and similar openings.

What is it made from?

It is a polyurethane foam.

Standard Shipping Australia-wide
Ships in 1-2 business days from our Australian warehouses
30-Day Returns
Change your mind? Return within 30 days for a full refund. Item must be unused and in original packaging.

Customer Reviews

4.3 ★★★★☆ 79 reviews
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✓ Fast Delivery ✓ Great Quality ✓ As Described Verified Purchases
H
Hannah P. 📍 Cairns QLD
★★★★★
1 month ago
✓ Verified Purchase

Worth every cent

Did a lot of comparison shopping before buying here and I have no regrets. Best price I found anywhere and delivery was fast — 3 days to Melbourne. Product feels genuinely premium, not cheap at all. Packaging was solid too, box arrived in perfect shape. Will be back for more.

T
Thomas R. 📍 Ballarat VIC
★★★★★
1 months ago
✓ Verified Purchase

Does the job well

Poly quality is always reliable and this was no exception. Fast delivery too.

J
Jessica L. 📍 Toowoomba QLD
★★★★★
2 months ago
✓ Verified Purchase

Already bought a second one

Placed the order in the evening and got a shipping notification the next morning. Arrived 2 days later in great condition. Product is well made and does everything it should. Really happy with the whole experience.

B
Ben A. 📍 Fremantle WA
★★★★★
2 months ago
✓ Verified Purchase

Quick delivery to regional QLD

The Poly Expanding arrived fast and works perfectly out of the box.

G
Grace W. 📍 Parramatta NSW
★★★★★
2 months ago
✓ Verified Purchase

Perfect gift — loved it

Bought this as a replacement for one I have had for years and I am glad I upgraded. The new one is noticeably better. Had a tracking number within a few hours of ordering. Packaging was excellent, nothing damaged. Already told a few mates about this site. Great prices and genuinely fast shipping.

O
Oliver H. 📍 Rockhampton QLD
★★★★★
2 months ago
✓ Verified Purchase

Arrived well packed

The Poly Expanding is a solid buy. I was a bit unsure about the size from the photos but it is perfect in person. Delivery was faster than expected. Very satisfied with this purchase.

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