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PU Expanding Foam

One component self-expanding, ready-to-use polyurethane foam.

  • Easy to apply.
  • Fill big gaps between walls, ceiling, door frames, etc.
  • Excellent adhesion & filling capacity
PU expanding foam can gap filling construction New Zealand

Product Overview

PU Expanding Foam is a one-component polyurethane foam designed for quick and efficient installation of windows, doors, and filling construction openings. It hardens with air humidity and adheres well to all construction materials, ensuring a strong bond and excellent insulation properties.

Find out how you can get PU Foam in Private Label

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Recommended Uses

  • Ideal for sealing windows and doors
  • Insulating, and soundproofing
  • Filling and sealing of gaps, joints and cavities
  • Insulating electrical outlets and water pipes.

Advantages​

  • Easy to Apply
  • Excellent adhesion & filling capacity
  • High yield up to 45 liters
  • Very high yield
  • Easy to cut, sand, plaster, or seal after curing.
  • Gun Grade and Manual Adapters

PU Foam Packing​

PU Foam can be supplied in aerosol can both gun grade and manual adapter depending on the requirement.

750ml cans| 500ml cans

Color: NA

Media & Downloads​

Frequently Asked Questions about PU Expaning Foams

Is PU Expanding Foam insulating?

Yes. It provides strong thermal and acoustic insulation, making it ideal for sealing around doors, windows, and pipework to reduce energy loss and noise transmission.

How much does the foam expand?

PU foam typically expands 2–3 times its original volume after application. Avoid overfilling joints — it’s best to fill only 60–70% of the space to allow room for expansion.

Can it be painted or cut after curing?

Yes. Once fully cured, PU foam can be trimmed with a knife and painted or coated with plaster, render, or other finishes to match surrounding surfaces.

Does it require any tools for application?

PU Expanding Foam is typically applied using a standard aerosol can with a straw applicator or a foam gun, depending on the product version. A foam gun allows for more precise application and better control.

Is it safe to use around electrical components?

Yes, it’s safe for use around electrical installations as long as it does not come into contact with live wires. It is commonly used for insulating around electrical conduits and boxes.

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