• PUNF Foam

Sound absorption lining for ducts

Categories: Ductwork, SoundPro

General Details
PUNF Foam is a fire retardant modified polyurethane acoustic foam designed to meet the stringent requirements of British Building Regulations. Dark grey in colour, PUNF foam is CFC and HCFC free.
Advantages

Available in sheet or roll form

Flexible and easily cut

Easy to handle and install

CFC and HCFC free

Available with various backings, including self adhesive backing and Class ‘O’ foil facing.
Technical Info

Physical Information

Standard sheet size:2m x 1m

Also available in rolls of 10m and 20m lengths depending on material thickness

Standard thicknesses: 6mm, 12mm, 15mm, 20mm, 25mm, 30mm, 45mm, 50mm and 70mm

Density: 108 kg/m³

Indentation hardness: 156 N

Tensile strength: 88 kps

Elongation at break: 188% (min. unaged)

Operating temperatures: 80° C (max. continuous)

110° C (intermittent)

-30° C (minimum)

Physical Information

PUNF Foam conforms to the following specifications:

Fire tests

BS 476: Parts 6 & 7 – Class ‘O’

BS 476: Part 5: 1979 – Class ‘P’

BS 476: Part 6: 1981 – F.p.i index 8.5

BS 476: Part 7: 1987 – Class 1

BS 4735 – Char 4.5mm

BS 5852 Part 2 – Pass

Civil Aviation CAA8 / FAA – Pass

Flammability (FMVSS 302) – Zero burn rate

– Self extinguishing

ASTM 1692: 1974 – Resists ignition

UL 94 Classification – 94-V-0

ATS1000.001 Smoke Toxicity – Pass
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PUNF Foam