FVMQ (fluorosilicone rubber)

This is a synthetic rubber, obtained by polymerization of methyl-trifluoropropyl-siloxane or with copolymerization of methyl-trifluoropropyl-siloxane and methyl-vinyl-ketone. Fluorosilicones possess most of the properties of silicone along with resistance to petroleum oils and hydrocarbon fuels.

Decreasing the maximum temperature (200 ° C) is recommended when using certain oils and fuels, as the formation of acids could lead to decomposition of fluorosilicone.

Usage:

especially seals in the fuel systems, food industry, medical devices, aerospace industry.

Advantages:

• very clean, odorless and tasteless,
• excellent compressibility,
• great temperature resistance,
• resistance to all conditions, ozone,
• resistance to mineral and synthetic oils as well as to hydrocarbon fuels and petroleum.

Disadvantages:

• poor wear resistance,
• poor tensile strength.

Temperature resistance: from - 45 °C to 200 °C.

Hardness: 30 to 80 Shore A.

AEM (ethylene-acryl, ethyl acrylate Rubber, vamac)

Ethylene acryl has properties similar to those of ACM, however its resistance at low temperatures is far better along with its mechanical properties. It is also highly resistant to oil, ozone, UV and weather.

Usage:

O-rings, seals, automotive transmissions.

Advantages:

• excellent vibration damping,
• resistant to aging,
• resistant to water, glycol, alkalis,
• better resistance to high temperatures as opposed to ACM.

Disadvantages:

• exposing it to fuel, brake fluid, aromatic hydrocarbons or phosphate ester, is not advisable
• weaker resistance to mineral oils than that of ACM.

Temperature resistance: from - 40 °C to 149 °C.

Hardness: 40 to 90 Shore A.