Sound Barrier Material

Sound Barrier Material

Keldax®
is a filled, thermoplastic ethlene polymer designed to provide economical, effective sound barrier components for automotive and industrial applications. Keldax® can be accurately and permenently formed into complex shapes which are easy to handle and quick to install. As a result, parts made of Keldax® not only control sound, they provide a precise fir and take up less space and weight than other sound barrier matrials. Keldax® combines its excellent formability with the flixibility nessesary for optimum sound barrier performance. Other applications include sound damping in automotive door panels, to sheild passengers from water splash noise, and sandwiched architectural panels, where sound deadening contributes to perceived higher quality performance.

Keldax® is extremly durable. This is because Keldax® resists embrittlement, which means longer life components.

 - Molded dash insulators

- Carpet underlayers

- Wheel well covers

- Rear seat barriers

- Trunk liners

- Door panels

- Any area where a conforming sound barrier is needed.


Typical Physical Properties of a medium-density grade Keldax®

Properties Units Test Method
Color Dark Grey  
Density 1.9g/cc  
Tensile Strength, 23°C 2.8 MPa 400 psi ASTM D638
Elongation at Break 23°C 450% ASTM D638
Flexural Modulus, 23°C 45 MPa 6,500 psi ASTM D790
Tear Strength 15 kN/m 85 lb/in ASTM D624