Acoustic Soundproofing Foam Sheet – Class O – Plain – Dark Grey

Class o acoustic soundproofing foam sheet. This product is an economical good quality solution to noise reduction and insulation in many applications. Fire resistant class o material. These Soundproofing panels are clean, easy to cut and easy to install.

We keep some of the largest stocks in the UK and if ordered before 1pm Monday to Friday your order can usually be dispatched that day and will be delivered to you the next day.

Order Acoustic Soundproofing Panels ‘on line’ below, simply select thickness, sheet size, quantity and add to the basket.


10% off for 10+ sheets 

20% off for 20+ sheets


£20.66 (ex. VAT)
£24.79 (incl. VAT)

Technical Specification


25mm, 50mm


Dark Grey (batch production allow for colour variance)

Density (Specific gravity)


fire Propagation Index

<12 (BS476 pt 6)

Surface Spread of Flame

Class "1" ( BS476 pt 7)

Building Regs. 1991 (Fire Safety)

Class "0"

Operating Temperature

-30 to 100 C

UL 94 Classification

94V-0 (UL 94)

Air Erosion Resistance (4001 - 60fpm)

Pass (ASTM C1071-91 12.7)

Surface Burning Behaviour

Class A (ASTM E84-95)

MIldew (Fungus) Resistance

Does not support growth (ASTM D-2020)

Fungus Resistance Test

Does not support growth (ASTM G 21)

Water Vapour Sorption

<9% (ASTM C553-92)

Thermal Conductivity

0.364 Btu-in./hr-ft2-degree F (ASTM C518-91)

Corrosiveness (galvanised steel)

Pass (ASTM C665-95)

Hot Surface Peformance @ 100c 96hr

Pass (ASTM C411-97

Please Note: There is a tolerance of +/-5% for all sizes of rubber sheeting, rubber matting and sponge rubber products.

This is a commercial product and imperfections in the surface and colour variations may occur during the manufacturing process

Noise Reduction

Random incidence Sound Absorption Coefficients

Frequency Hz 125 250 500 1K 2K 4K NRC
25mm Thick 0.16 0.29 0.42 0.56 0.69 0.76 0.49
50mm Thick 0.23 0.49 0.70 0.88 0.92 1.02 0.75


Noise Reduction Coefficient (arithmetic average values at 250, 500, 1K and 2K HZ)