Soft Polyethylene

Soft polyethylene is a flexible material with good recovery properties, well-suited for use as seals and sealing strips. The material is often used as thermal insulation in ventilation products and enclosures. This cellular plastic is extruded onto a roll and has closed cells for sealing against water and air.

The material has a smooth surface texture that provides a “slow recovery” function when irregularities need to be sealed. Soft polyethylene is a cost-effective material compared to cellular rubber and other cellular plastics with similar “recovery” functions. We die-cut, waterjet-cut, and saw cellular polyethylene into seals, sealing strips, and thermal insulation for various industries.

Insulation capacity

Thermal insulation

The material is well-suited for thermal insulation due to its thermal conductivity of 0.04 W/mK. To achieve optimal sound and thermal insulation, the material can be laminated with foam plastic to create a sandwich material with combined properties—an insulation well-suited for HVAC systems and ventilation equipment. Soft polyethylene is a very lightweight material and can therefore be easily laminated onto most industrial materials.