Polyisocyanurate systems for Pour and Block Foam
Polyisocyanurate foams, referred to as PIR, is essentially modified polyurethane (PU) foam. Two advantages of PIR foam are improved fire-resistance and excellent insulation properties.
The proportion of MDI is higher than for PUR. As a result the MDI will also react with itself, producing strong chains of isocyanurate. These chains are stronger than normal bonds in polyurethane and results in a chemically and thermally more stable foam.
Advantages of PIR
Superior R-Value and thermal performance
Moisture resistance
Dimensionally stable
Excellent fire test performance
Unaffected by commonly used construction adhesives and solvents
Building code conformance
PIR Pour foam
Machine dispensed & "hand-mix" systems
Fire Retarded PIR & special use formulations
Density  45 kg / m³
PIR Rigid foam
Thermal insulation and refrigeration
Water heater systems [systems tested to MEPS rating standards]
Prefabricated PIR sandwich panels
Industrial and commercial pipe insulation.
PIR foam panels laminated with aluminium foil
Pipe injection & Vessel insulation
Prefabricated insulation duct that is used for heating, ventilation and air conditioning
Contact us for details about the range of polyisocyanurate foams
    Australian Urethane Systems Pty. Ltd. all rights reserved
AUSTHANE PIR 45 is suitable for  insulating applications in hot or cold environments, with ‘contact side’ temperatures ranging from  - 50 °C  to  + 130 °C.

foam has better Fire Resistance properties than standard flame-retarded polyurethane foams.

foam achieved a GROUP 1 Classification in accordance with Specification A2.4 of the Building Code of Australia when tested under the AS/NZS 3837 Standard. [CSIRO Test Report FNK 10180-July 2011 - a pdf document is available.].

is formulated using
ecomate®  an “environmentally friendly” blowing agent with Zero ODP and Zero GWP.
The use of
ecomate® Blowing Agent results in the foam having excellent Thermal Insulation properties. The Thermal Conductivity k factor is 0.0215 W/m.K at 23.1 °C. [AWTA Test Report 187912 - 5 July 2011].
R values
Sheet Thickness 25mm 40mm 50mm 75mm 100mm 150mm
R value [m² K / W] * 1.14 1.82 2.27 3.41 4.55 6.83
* Note :  The relationship of  R value to Sheet Thickness is linear  in practical terms of the application and use for the recommended Exposure Temperatures for the product.

AUSTHANE PIR 45 is made in blocks nominally 600mm high, 1200mm wide  and 2400, 2700, or 3000mm long. The foam can be supplied as
        AS/NZS 3837
   Group 1 classification
Certificate of Assessment
Test reports

AS/NZS 3837 CSIRO test report

AWTA Thermal Insulation Test Report
sheets from 15mm to 600mm
pipe section to required diameter
special profiles
with aluminium foil facing - single or doubled sided
   AS/NZS 4859.1
Assessment report