PTFE Glass Filled is reinforced with 15% and 25% glass fibers depending

on the needs of the application.

♦ Improves creep resistance at both low and high temperatures

♦ Chemically stable (except for strong alkalis and hydrofluoric acid (HF))

♦ Slightly affects the electrical properties of PTFE and improves wear and friction characteristics

Glass fiber filled PTFE is very commonly used in valve seat applications.

The increased compressive strength and creep resistance of the material provides

much more pressure on the valve seat and thus a much higher rated valve.

MAIN ADVANTAGES

• Wear resistant

• Higher coefficient of friction

• Improved hardness

  • Abrasive media not suitable for some applications

• Less thermal expansion

• Reduced resistance to gas permeation

• Less deformation under load

• Non-conductive material