CF silicone solid rubber reinforced with fiberglass is a dimensionally-stable, durable material for press pads, belting and gasketing. It is available in six constructions.
CF3320, available in three thicknesses, was developed to meet AMS 3320. Consequently, 3320 has lubricating oil resistance and excellent compression set resistance.
CF4032 and CF4050 are thin, flexible and abrasion-resistant for generalpurpose use.
CF4420 is specially formulated for thermal stability and long life under extreme heat and pressure for extended dwell times. It resists reversion (i.e. softening and outgassing) longer than general purpose silicone. Throughout its useful life, 4420 has thermal stability for consistent thermal conductivity.
CF4444 has a specially formulated rubber compound to give better reversion resistance. The reinforcement is a special crush-resistant fiberglass, making the product excellent for press pads in high-temperature and pressure lamination applications.
CF4451 is a fiberglass fabric coated with static dissipating silicone rubber having a surface resistivity of 1 x 105Ohms – cm.Virtually eliminates static electric discharges which cause operator discomfort and can potentially damage electrical laminates.
CF4480 utilizes our most reversionresistant silicone rubber compound. The product is designed for use in applications involving the tough combination of prolonged high-pressure confinement at temperatures in the range of 375 °F to 650 °F.
CF3320, available in three thicknesses, was developed to meet AMS 3320. Consequently, 3320 has lubricating oil resistance and excellent compression set resistance.
CF4032 and CF4050 are thin, flexible and abrasion-resistant for generalpurpose use.
CF4420 is specially formulated for thermal stability and long life under extreme heat and pressure for extended dwell times. It resists reversion (i.e. softening and outgassing) longer than general purpose silicone. Throughout its useful life, 4420 has thermal stability for consistent thermal conductivity.
CF4444 has a specially formulated rubber compound to give better reversion resistance. The reinforcement is a special crush-resistant fiberglass, making the product excellent for press pads in high-temperature and pressure lamination applications.
CF4451 is a fiberglass fabric coated with static dissipating silicone rubber having a surface resistivity of 1 x 105Ohms – cm.Virtually eliminates static electric discharges which cause operator discomfort and can potentially damage electrical laminates.
CF4480 utilizes our most reversionresistant silicone rubber compound. The product is designed for use in applications involving the tough combination of prolonged high-pressure confinement at temperatures in the range of 375 °F to 650 °F.
Unit of Measure
Dielectric Strength |
N/A 500 V/mil |
Thermal Conductivity (Average from 75 to 350 ºF) |
N/A 1.9 BTU in/h·ft2 ºF |
Elongation at Break |
N/A Less than 10 % |
Linear Thermal Expansion |
N/A 1.5 x 10-4 in/in/ºF (silicone rubber) 4.7 x 10-6 in/in/ºF (fiberglass) |
Width |
N/A 36 in |
Color |
N/A Red |
Test Method Thickness |
N/A D751 |
Thickness |
N/A 1/16 ±.005 in |
Fiberglass Thickness |
N/A .014 in |
Test Method Weight |
N/A D751 |
Weight per Square Yard |
N/A 65 lb |
Fiberglass (% of Weight) |
N/A 20 % |
Test Method Weight Loss |
N/A D751 |
Weight Loss (4 h at 400 ºF) |
N/A 1.5 % |
Test Method Break Strength |
N/A D751 |
Break Strength (Warp) |
N/A 300 ppi |
Test Method Diaphragm Burst Strength |
N/A D751 |
Diaphragm Burst Strength |
N/A 750 psi |
| Durometer (Shore A ±5)1 | N/A 74 |
- 1 Actual rubber durometer is 50 for 4032; 60 for 3320, 4420, 4444; 65 for 4451; 70 for 4480.
