A sandwich construction comprising both a 6mm and 25mm thickness of specially formulated sound absorbing foam each side of a mineral loaded polymeric sound barrier with a tough black film facing.

These composites are specifically designed to reduce noise pollution from enclosed areas where a high degree of sound proofing is required combined with resistance to wear and tear.

The polyurethane skin is a tough, oil and water resistant coating protecting the insulation which is able to give effective sound absorption wherever internal engines or hydraulic power packs are used without the problem of liquid or dust contamination.

A sandwich construction comprising both a 6mm and 25mm thickness of specially formulated sound absorbing foam each side of a mineral loaded polymeric sound barrier. The thicker layer of foam is protected by the thin, very tough polyurethane skin.

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