What is FVMQ (Fluorosilicone Rubber)？
Fluorosilicone rubber combines the good properties of silicone at high and low temperatures with limited resistance to fuels and oils.
Release time:
2022-03-17
Source:
What is FVMQ (Fluorosilicone Rubber)
Fluorosilicone rubber combines the good properties of silicone at high and low temperatures with limited resistance to fuels and oils. In fact, it is a plastic because it contains no hydrocarbons. Fluorosilicone is available in all different RAL colors, as well as transparent. The coloring of fluorosilicone does not affect the mechanical properties. The maximum temperature resistance is up to 230ºC and the material is very malleable, from hard (80 Shore-A) to soft (40 Shore-A). Compared to fluorocarbon rubber, fluorosilicone rubber has a wider temperature range at freezing temperatures. The most important applications for fluorosilicone seals are cooling and freezing systems, Arctic conditions, and fuel systems at temperatures up to + 177 °C (+ 350 °F) and applications where dry heat resistance of silicone O-rings is required. Fluorosilicone seals may also be exposed to oil based on petroleum and/or hydrocarbon fuels. Compared to silicones, fluorosilicones are resistant to silicone oils and greases.
For low temperature applications, fluorosilicone O-rings are suitable up to -73°C (-100°F). Due to their relatively low tear strength, high friction and limited wear resistance, these materials are recommended for static applications only. Fluorosilicone rubbers with high tear strengths are also available. Some of these compounds exhibit improved compression resistance. Many fluorosilicone rubbers have higher-than-normal shrinkage during vulcanization, so mold sizes for fluorosilicone rubber products often differ from those for other elastomers.
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