Waterproof Wire Protect Oval Round Custom Silicone/NBR/EPDM/FKM/FFKM/ Molded Rubber Grommets Bushings

Hangzhou Bright Rubber Plastic Product Co., Ltd. is one of the leading manufacturers and suppliers of waterproof wire protect oval round custom silicone/nbr/epdm/fkm/ffkm/ molded rubber grommets bushings in China. If you're going to buy waterproof wire protect oval round custom silicone/nbr/epdm/fkm/ffkm/ molded rubber grommets bushings made in China, welcome to get more information from our factory. We also accept customized orders.

Product Description

Waterproof Wire Protect Oval Round Custom Silicone/NBR/EPDM/FKM/FFKM/ Molded Rubber Grommets Bushings

Advantages of FFKM

FFKM (Perfluoroelastomer) is regarded as the "gold standard" or "ceiling" material in the rubber industry. Its core strengths lie in its extreme chemical resistance​ and superior thermal stability, combining the elasticity of rubber with the corrosion resistance of PTFE (Polytetrafluoroethylene).

Waterproof Wire Protect Oval Round Custom Silicone/NBR/EPDM/FKM/FFKM/ Molded Rubber Grommets Bushings

Specific advantages include:

Near-Universal Chemical Resistance

The hydrogen atoms on the carbon chain are almost entirely replaced by fluorine atoms, forming a dense protective barrier. It remains inert to over 1,600 chemicals, including strong acids (sulfuric acid, hydrofluoric acid, etc.), strong bases, strong oxidants, various organic solvents (ketones, ethers, esters, etc.), and corrosive gases, exhibiting virtually no swelling or degradation.

Exceptional Temperature Range

It boasts a long-term operating temperature range of -40°C to +325°C, with certain specialized grades capable of withstanding short-term exposure above 330°C. Unlike conventional rubbers that rapidly harden, embrittle, or degrade at high temperatures, FFKM retains its elasticity even in extreme heat.

Superior Sealing Longevity

It exhibits an extremely low compression set (often maintainable below 50% even at 300°C). Even under prolonged high-temperature and high-pressure conditions, it recovers well after pressure release, maintaining effective sealing force and reducing the frequency of equipment downtime for maintenance.

Waterproof Wire Protect Oval Round Custom Silicone/NBR/EPDM/FKM/FFKM/ Molded Rubber Grommets Bushings

High Purity and Low Permeability

The material features minimal extractables and outgassing, preventing contamination of process media. Its tight molecular structure results in very low permeability to gases and liquids, making it ideal for semiconductor manufacturing, pharmaceuticals, high-vacuum, and ultra-pure environments.

Excellent Weather and Aging Resistance

It offers robust resistance to ozone, UV radiation, plasma (such as in semiconductor etching environments), and superheated steam, providing a significantly longer service life in outdoor or extreme conditions compared to standard elastomers.

Additional Note:​ Despite its outstanding performance, FFKM is extremely costly (often dozens of times more expensive than standard FKM/Viton). Therefore, it is typically reserved for critical applications where conventional materials fail, such as chemical reactors, semiconductor etching equipment, downhole oil & gas tools, and aerospace engines.

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