VOLTALEF® 402

VOLTALEF® 402: PCTFE fluoropolymer for extreme environments

A reference PCTFE for critical applications

VOLTALEF® 402 is a polychlorotrifluoroethylene (PCTFE) grade developed by Arkema and processed by DEMGY. It combines outstanding chemical resistance, thermal stability and barrier properties for use in the most demanding industrial environments.

Cryogenic performance and dimensional stability

The material retains mechanical integrity down to -196 °C and features a very low coefficient of thermal expansion, ensuring reliable sealing performance through extreme thermal cycles.

Chemical resistance and barrier performance

VOLTALEF® 402 provides excellent resistance to aggressive chemicals and offers very low gas and moisture permeability, making it ideal for sealing and containment of sensitive media.

Typical applications

• cryogenic valve seats and seals
• aerospace and space system components
• gas containment and ultra‑pure fluid handling

• Semi-finished product manufacturer : DEMGY Normandie
• Raw material supplier : Arkema
• Polymer name : Polychlorotétrafluoroéthylène
• Polymer abbreviation : PCTFE
• Minimum thermal resistance (in °C) : -196
• Mechanical resistance traction module (in MPa) : 43
• Mechanical resistance compression module (in MPa) : 2500
• Mechanical resistance constraint compression (in MPa) : 70
• Mechanical resistance (in MPa) : Low
• Pressure-velocity limit (PV) : Low
• Low friction and wear coefficient : Medium
• Wear resistance : Poor
• Electrical conductivity : Insulative
• Chemical resistance : Very Good
• Continuous thermal resistance (in °C) : 90
• Maximum thermal resistance (in °C) : 126