Newmet 7429 is a closed cell silicone sponge material designed for fire retardant applications. It is uv/ozone resistant. The material is produced in sheets up to 915 x 915mm with textured surfaces. Gaskets and soft adhesive parts are available.

Soft (7129S), medium (7329M) and firm (7429F) grades allow material to be chosen for the required compression force deflection.

Applications
  • Gaskets
  • Seals
Product Features
  • Durable
  • Fire retardant
  • High temperature applications
  • Low water absorption
  • UV/Ozone resistant
  • Vibration isolation
  • Wide temperature range
Quality standards
  • On request
Markets
  • Aerospace

Typical properties

Product Property Value Test Method
Density (kg/m3) 560 ASTM D 1056
Compression Force Deflection (kPa) @ 25% deflection 94 -147 ASTM D 1056
Compression Set (%) max 22hrs @ 100°C 35 ASTM D 1056
Tensile strength (kPa) 1380 ASTM D 412
Elongation (%) 250 ASTM D 412
Water Absorption (%) 5 max. ASTM D 1056
Temperature Resistance (°C) -65 to +204
Sheet Size Thickness up to 915x915mm, from 1.6mm
Colour Grey