We’re back with more materials for our 25 Materials of Christmas series. Take a look at compounds 6-10 and view our complete Material Selection Guide at applerubber.com to learn more!
Fluorocarbon (Viton®)*
Fluorosilicone
Hydrogenated Nitrile*
Liquid Silicone Rubber*
Medical Ethylene Propylene
Fluorocarbon (Viton®) combines high temperature resistance with outstanding chemical resistance, making Fluorocarbon-based compounds nearly ideal for universal O-ring material.
Fluorocarbon is mainly used in seals for aircraft engines, automotive fuel handling systems, high temperature/low compression set applications, wide chemical exposure situations, and hard vacuum service.
The temperature range of the standard compound is -13° to +445°F, and of the special compound is -40° to +446°F, with a Hardness (Shore A) of 55 to 90.
Fluorosilicone is mainly used in aerospace fuel systems, auto fuel emission control systems, and static sealing applications.
This material combines the good high and low temperature stability of Silicones with the fuel, oil, and solvent resistance of Fluorocarbons. Fluorosilicone is most often used in aerospace applications for systems requiring fuel and/or diester-based lubricant resistance up to 400°F.
The temperature range of the standard compound of Fluorosilicone is -75° to +400°F, with a Hardness (Shore A) of 55 to 85.
Hydrogenated Nitrile is mainly used in all oil resistant applications, including exposure to additives such as detergents, anti-oxidants and anti-wear agents. It is used in seals for oil well applications, automotive fuel handling systems, and general industrial usage.
The temperature range of the standard compound is -30° to +300°F (Dry Heat Only), and of the special compound is -76° to +374°F, with a Hardness (Shore A) of 50 to 90.
Liquid Silicone Rubber is a low viscosity silicone elastomer intended for use in liquid injection molding (LIM) equipment. This material offers high thermal stability and flexibility at low temperatures, high transparency, and is easily colored. The key uses of Liquid Silicone Rubber are in extreme temperature situations, environmental housing seals, and seals for medical devices.
The temperature range of the standard compound is -85° to +400°F, and of the special compound is -148° to +400°F, with a Hardness (Shore A) of 10 to 80.
Medical Ethylene Propylene has a temperature range of -60° to +275°F, with a Hardness (Shore A) of 70.
This material is mainly used in environmental seals, O-rings, lip seals, insulin pumps, oxygen valves, and low water permeation. Ethylene Propylene has gained wide seal industry acceptance for its excellent ozone and chemical resistance characteristics.
To learn more about any of these materials, or to see a complete listing of available materials from Apple Rubber, take a look at our Material Selection Guide. Don’t forget to come back next week for more material information!
*Special Compound