It is a closed-cell crosslinked polyamide (nylon) foam for use in higher temperatures environments (200°C+) and is available in a range of densities. Compared to other foams ZOTEK® N has a significantly higher upper operating temperature limit. Thermal shrinkage at 205 deg °C can be less than 5% after 24 hours. This allows ZOTEK® N to be used in systems requiring high temperature processing such as composite cores or in-line paint systems.
ZOTEK® N is excellent thermal insulator and will act as heat shield - which can be further enhanced by the addition of an aluminium layer. ZOTEK® N is fully compliant with R.O.H.S & REACH requirements. It is lightweight (from 30kg/m density) and thus ZOTEK® N materials offer many weight saving and energy saving advantages.
Based on polyamide (nylon), ZOTEK® N has excellent general chemical resistance and is exceptionally resistant to hydrocarbons including fuels, oils, brake and power steering fluids, and antifreeze. Being a closed cell material, acoustic insulation is very good, with good noise, isolation and damping characteristics. It can be used in combination with other materials to optimise acoustic performance.
| Applications | Benefits |
|---|---|
| Thermal Insulation | Temperature resistant |
| Heat Shields | Light weight |
| Composite Cores | Chemical resistant |
| Tubes and Ducts | Thermoformable |
| Seals | Machinable |
| Gap Fillers | Energy absorbing |
| Acoustic Insulation | UV resistant |
| NVH Energy Absorbers | Consistent density |
| Hot Packaging | Firm or flexible |
Impact and energy absorption is also high and ZOTEK® N has good kinetic mechanical energy absorption properties. There is little rebound when compared to other common foam.ZOTEK® NB50 electrical conductivity - a typical surface resistance of 1 x 1012 ohms which classifies the material as insulative according to the ESD Association.
Being based on a polyamide material, ZOTEK® N has naturally good UV resistance characteristics. After 1000 hour exposure there is minimal effect on tensile strength and elongation at break.
With regard to flammability ZOTEK® N meets typical horizontal burn requirements of FMVSS302 above 4mm thickness.
If you have a particular requirement for high temperature foams and would like to discuss your application, please call us - our Technical Department would be pleased to assist.
