Sound damped steel or aluminium etc is formed by laminating 2 sheets together using a high loss viscoelastic layer under controlled conditions. This creates a very highly damped, rugged and hygienic noise control material.

Sound damped metal sheet is available in Zintec, CR, HR, stainless, galvanised or aluminium. Other metals are available on request.

SDS can be deep drawn, folded, formed, bent, guillotined, lasered, glued and punched. It can also be welded – but with care.

Up to around 30dB attenuation compared with ordinary steel sheet, depending on the application.

Our laminated metals are unaffected and can be treated just like ordinary sheets – except where temperatures may exceed 108C.

The materials have a continuous working temperature range of -40C to 180C. Above this temperature, we can supply it bonded with a special high-temperature viscoelastic layer.

They retain their acoustic properties for the lifetime of the component.

Laminated metals (usually stainless steel) are often used in high hygiene industries such as food, pharmaceuticals and electronics where conventional acoustic materials create cleaning and material shedding problems.

The laminates are inherently non-combustible and when tested for use in the public transport sector, the aluminium dampers were rated as Class 0, the highest rating (BS476 part 6).