Spray Foam Australia
Product: Closed Cell

Closed Cell Spray Foam Insulation

Rigid, high-performance foam that insulates, air seals and isn't water permeable, for residential, commercial and industrial work.

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Closed Cell Foam

Rigid Spray Foam

1. High R-value per millimetre
2. Not water permeable
ISO 9001 • 45001 • 14001
EEC Accredited
Huntsman Approved
HIA Member
5.0 Google rating
2014
EstablishedNational Australian Operations
16k+
Homes InsulatedAcross WA, VIC, QLD & NSW
100+
Trained ProfessionalsAcross the Energy Efficiency Group
5.0
Google RatingVerified Customer Feedback
Product: Closed Cell

Rigid insulation with a high R-value per millimetre

Products Product: Closed Cell

Closed cell foam cures into a hard, rigid layer. Its sealed cells give it a higher R-value per millimetre than open cell foam, and it isn't water permeable.

That makes it a strong choice for underfloors, metal roofs, sheds, shallow framing and moisture-prone areas.

Why choose this solution

  • Thermal comfort

    Sprayed directly to the substrate for continuous insulation, helping keep temperatures stable.

  • Condensation control

    Closed cell foam isn't water permeable, which helps manage moisture and condensation.

  • Air sealing

    The foam expands into cracks and joins as it's applied, reducing air leakage through the building.

  • Long-lasting performance

    Foam adheres to the surface and won't sag or settle the way loose insulation can.

Performance varies with the product, thickness, building and installation. Fire performance is product specific: see our fire performance page.

More about closed cell spray foam insulation

HEATLOK® ECO™

Australia's Premium Closed-Cell Spray Foam Insulation Solution

HEATLOK® ECO™ is an innovative solution for continuous insulation needs. Designed for optimal energy efficiency and environmental sustainability, it incorporates cutting-edge technologies that redefine spray foam insulation standards.

HEATLOK® ECO™ combines the proven strengths of Heatlok with 4th-generation blowing agent technology, ensuring superior performance and unmatched eco-friendliness.

Premium Closed Cell Spray Foam Insulation

Fully compliant with the Montreal Protocol, promoting sustainable building practices.

Superior adhesion, compressive strength, and yield ensure long-lasting results.

Made using Huntsman’s latest polyester polyols technology, incorporating recycled waste PET bottles.

Utilises Honeywell’s Solstice® Liquid Blowing Agent technology with an ultra-low Global Warming Potential (GWP) of 1, 99.9% lower than traditional agents.

HEATLOK® ECO™

Closed-cell polyurethane foam made with recycled materials.

Insulation Applications and Solutions

  • HEATLOK® ECO™
  • HEATLOK® ECO™
  • HEATLOK® ECO™
  • HEATLOK® ECO™
  • HEATLOK® ECO™

What is closed-cell spray foam insulation?

  • A type of foam insulation that consists of cells that are completely sealed and packed closely together. This structure gives the material its unique properties, making it an effective solution for insulation in residential, commercial, and industrial buildings.

How much does spray foam insulation cost?

  • Costs vary based on the area and application. Contact us today for a tailored quote on spray foam insulation in Australia.

Is HEATLOK® ECO™ compliant with Australian building codes and environmental regulations?

  • Yes, it complies with Australian building codes and environmental regulations. It aligns with the principles of the Montreal Protocol and meets the nation’s sustainability standards, ensuring it delivers high performance while supporting eco-friendly construction practices.
HEATLOK® ECO™

When it comes to insulation, Heatlok® ECO™ offers unmatched performance, eco-friendly innovation, and reliability. Invest in sustainable building solutions with the trusted power of Heatlok.

Related services

National Spray Foam Coverage

Servicing Projects Across WA, VIC, QLD & NSW

Our spray foam crews operate locally from Perth Metro, Melbourne, Brisbane and Sydney.

WA depot

Perth & WA Regions

1/7 Competition Way, Wangara WA 60651300 614 134
Areas we cover
  • Perth Metro Area (North & South of River)
  • Joondalup, Wanneroo, Stirling & Coastal Suburbs
  • Fremantle, Melville, Rockingham & Mandurah
  • Hills Region, Midland, Kalamunda & Swan Valley
  • Bunbury & South West Regional WA

Same-day on-site assessments available across Perth metro

VIC depot

Melbourne & VIC Regions

7/11 Rockfield Way, Ravenhall VIC 30231300 614 134
Areas we cover
  • Greater Melbourne & Inner City Ring
  • Northern Suburbs (Preston, Brunswick, Whittlesea)
  • Eastern & South Eastern Suburbs (Bayside, Monash)
  • Western Suburbs (Werribee, Sunshine, Point Cook)
  • Geelong, Mornington Peninsula & Yarra Ranges

24-hour response for Melbourne & Regional VIC enquiries

QLD depot

Brisbane & QLD Regions

4-10 Facit Street, Hemmant QLD 41741300 614 134
Areas we cover
  • Greater Brisbane & Inner City Suburbs
  • Moreton Bay, Logan City & Redland Coast
  • Gold Coast & Sunshine Coast Regions
  • Ipswich, Toowoomba & Regional QLD

Rapid dispatch across Greater Brisbane & South East Queensland

NSW depot

Sydney & NSW Regions

Unit 4/1 Powdrill Rd, Prestons NSW 21701300 614 134
Areas we cover
  • Greater Sydney & Western Sydney Hubs
  • South West Sydney, Liverpool & Campbelltown
  • North Shore, Northern Beaches & Hills District
  • Wollongong, Central Coast & Regional NSW

Dedicated local crew serving Sydney Metro & Regional NSW

Regional & Inter-State Inquiries

Located outside major metro zones?

We work on rural, coastal, agricultural and remote mining projects. Tell us about the site and we'll assess what's needed to get a crew there.

Expert Answers

Frequently Asked Spray Foam Questions

What you need to know about foam types, R-values, where spray foam can go, safety and fire performance.

Have a specific project question?

Our team can talk through your substrate, access, climate and the data sheets you need.

Ask Our Technical Team

What is the difference between closed cell and open cell spray foam?

Closed cell foam cures into a hard, rigid layer with a higher R-value per millimetre, and it isn't water permeable. Open cell foam cures soft and flexible, expands to fill cavities and helps dampen sound, but it is water permeable and is used for interior applications. We recommend the right system for your building and climate.

What R-value can spray foam achieve?

We install spray foam from R1 to R8, depending on the product and thickness. As a guide, our closed cell foam reaches R2.08 at 50mm, and our open cell foam reaches R1.3 at 50mm and R3.9 at 150mm. Your climate, the area being insulated and the build type determine the right target.

Where can spray foam insulation be used?

Common areas include underfloors, crawl spaces, roofs, ceilings, walls, under slabs, sheds and workshops. We also insulate commercial buildings, cool rooms, food premises, mining camps, modular buildings, shipping containers, truck bodies, tanks and pipework.

Is spray foam safe once it has cured?

Once cured, the foam is non-hazardous and free of formaldehyde and asbestos. It must be installed by licensed applicators wearing PPE while it is airborne, so occupants stay clear during application and return when the installer advises it is safe.

Is spray foam insulation fire rated?

Spray foam is generally classified as a combustible material under the NCC, and fire performance varies by product and configuration. Some products have been tested to AS1530.3 or classified under AS/NZS 3837, but those results apply only to the tested product and don't by themselves demonstrate fire resistance or NCC compliance. See our fire performance page and ask us for the data sheet for your project.

Can I spray foam my property myself?

We recommend professional installation. Correct mixing, pass thickness and safety controls all affect how the foam performs, and experienced applicators have the equipment and training to get them right.

Can you paint spray foam insulation?

In many projects, yes. Painting can suit branding or interior design schemes, but the right approach depends on the foam and the space. Talk to us before you paint, so the finish suits the product and the area.

How much does spray foam insulation cost?

It depends on the area, the product and the thickness needed to reach your R-value. Contact us for a free, no-obligation quote tailored to your project.
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