Fluorosilicon elastomer WEI-R-1000

Composition: copolymer of methyl-(3,3,3-trifluoropropyl) siloxane and small amount of vinyl monomer

Fluorosilicon elastomer WEI-R-1000 is a heat vulcanization elastomer with high molecular weight. It appears as transparent gum. This product unites good performances of fluoroelastomer and siliconelastomer as follows, therefore can be used as seal materials in special positions with requirements to resist high and/or low temperature, oil and other medium.

  1. wide application temperature range: -60℃~200℃
  2. good resistance to solvent and oil like fluoroelastomer
  3. strong elongation retention at high temperature like siliconelastomer
  4. good electric insulation
  5. low leakage, comply to requirements by environment protection
Item R-1001 R-1002 R-1003
Appearance Clear or slight yellow, transparent gum with no visible impurities
Density, g/cm3 1.22~1.26
Molecular weight (10,000) 40-60 61-90 91-120
Content of vinyl group, %mol 0.30-0.50
Content of volatile components <2.0%

Note: typical values


  1. Aerospace industry: used in aircraft as seals to resist fuels and/or lubricants, such as O-rings, spacers, integral tank sealing, seal rings, sensor materials, diaphragms and clips for fluorosilicone spacers.
  2. Automobile industry: used as sealing rings, grease seal, diaphragms, pipes and valve-linings for various types of vehicles.
  3. Petrochemical industry: sealing elements used in pump, valve and oil tank, which are used in high/low temperature and chemical circumstance.
  4. Medical and health care: used in manufacturing medical apparatus or instruments, and artificial visceral organs, such as medical pipes, medical hoses for fluids and artificial valves.
  5. Martial industry: used in poor environment, which requires materials to resist low temperature, oil and acid, for instance, corrugated pipes used in hydraulic system of martial aircraft, sealing rods for doors, windows and covers on special vehicles, sensor materials and etc.

Package: Complex bags made with aluminum and plastic. Each sack is 10kg. 2 sacks are put in 1 box.

Storage: Validity is 2 years. Shall be put in dry and ventilate places.


  • The product shall be kept neutral, avoid being touched with acid or alkali products.
  • The product can flow under its own weight. Shall keep it in good condition of packing during transportation and application, in order it not to flow out.