CHEMRES®

FFKM (CHEMRES®) perfluoroether O-ring

1.Perfluoroether rubber properties:

FFKM (CHEMRES®) perfluoroether rubber material is currently the best rubber material among all elastic sealing materials in terms of high temperature resistance, strong acid and alkali resistance, and organic solvent resistance. Perfluoroether rubber can withstand corrosion from over 1600 chemical solvents, including strong acids, strong alkalis, organic solvents, ultra-high temperature steam, ethers, ketones, esters, nitrogen-containing compounds, hydrocarbons, alcohols, aldehydes, furans, amino compounds, etc. It can withstand high temperatures up to 320 ℃. FFKM perfluoroether components have nearly 15 years of practical application experience in many industries.

2.Perfluoroether rubber selection table:

Perfluoroether FFKM rubber raw materials to meet the special sealing needs of customers under harsh working conditions. Due to the complex manufacturing process of perfluoroether rubber, currently only a few manufacturers in the world can produce perfluoroether rubber raw materials: DuPont, 3M , Daikin, and Solvay.

According to different temperature resistance levels and raw material performance formulas, permanent core seals have the following different levels of perfluoroether FFKM materials to choose from.

FFKM perfluoroether has the highest temperature resistance, tensile strength, elongation at break, modulus, hardness, and permanent deformation under compression
Grade: 

CHEMRES®	Temperature ℃	Mpa （tensile strength ）	Shore A	70 hours @200℃	Elongation	Application	Characteristic
2575B	-15-270	20.2	77	15.7%%	153	chemical industry, semi-conductor	Wide chemical resistance
2275B	-10-200	15.7·	76	25%%	121	chemical industry	Wide chemical resistance
2375B	-15-230	19.2	76	20%	146	chemical industry	Wide chemical resistance
2306B	-20-230	20.5	76	21.2%	160	chemical industry, semi-conductor	Wide chemical resistance, Thermal amine
2575W	-15-270	20.2	76	12.6%	155	food, medical, semi-conductor	Wide chemical resistance
3175B	-2-315	14.2	76	19.3%	145	chemical industry	Wide chemical resistance
3075B	-2-300	18.7	76	25%	163	semi-conductor	High-Temperature, Water Steam resistance
2590B	-10-270	17.5	76	25.7%	119	chemical industry	High Pressure, Wide chemical resistance
3090B	-2-300	19.5	76	31%	121	semi-conductor	High-Temperature, High Pressure resistance
0475B	-40-230	16	76	29%	175	chemical industry	Low Temp. resistance
2306W	-15-230	18.7	75	20.3%	165	semi-conductor	Etching, clean
3175W	-2-315	14.5	76	22.3%	176	semi-conductor	High Temperature., clean
275UP	-15-270	18.7	72	23%	260	semi-conductor	Ultra-clean
375UP	-10-300	13	75	22%	223	semi-conductor	Ultra-clean
375B	-5-350	16	75	15%	137	semi-conductor	High Temp., clean

Note: Perfluoroether FFKM has high cleanliness and metal ion free grades to choose from. For specific inquiries, please consult DMB SEAL sales engineers

3.Applicable industries:

FFKM perfluoroether rubber seals are mainly used for sealing under harsh working conditions in the semiconductor industry, chemical industry, automotive industry, petroleum industry, pharmaceutical industry, battery industry, nuclear power industry, and other industries.

4.Sealing condition application:

Due to the high cost of raw materials for perfluoroether FFKM rubber, the sealing conditions for using perfluoroether FFKM are usually extremely harsh. Other rubber materials cannot meet the sealing requirements under these harsh conditions, and other rubbers are prone to corrosion, swelling, dissolution, aging and hardening under these harsh conditions, resulting in sealing failure. Perfluoroether FFKM rubber, due to its excellent corrosion resistance and high temperature resistance, meets the sealing requirements of harsh working conditions while increasing the service life of seals and reducing customer maintenance costs.

5.Typical application conditions of perfluoroether FFKM rubber seals include:

*Semiconductor industry (plasma corrosion, gas corrosion, acid alkali corrosion, high temperature corrosion, high cleanliness requirements for rubber seals)

*Pharmaceutical industry (organic acid corrosion, organic alkali corrosion, organic solvent corrosion, high temperature corrosion)

*Chemical industry (strong acid corrosion, strong alkali corrosion, gas corrosion, organic solvent corrosion, high temperature corrosion)

*Petroleum industry (heavy oil corrosion, hydrogen sulfide corrosion, high sulfide corrosion, organic component corrosion, high temperature corrosion)

*Automotive industry (high temperature oil corrosion, high temperature corrosion)

*Laser electroplating industry (high temperature corrosion, high cleanliness perfluoroether rubber cannot precipitate metal ions)

*Battery industry (acid alkali corrosion, strong active medium corrosion, strong oxidizing medium corrosion, high temperature corrosion)

*Special equipment manufacturing industry (strong acid-base corrosion, gas corrosion, high temperature corrosion, organic solvent corrosion, ion corrosion)

*Specialty chemical industry (strong oxidant corrosion, strong activator corrosion, concentrated acid-base corrosion, organic solvent corrosion)

*Nuclear power thermoelectric industry (high-temperature steam corrosion, ultra-high temperature water corrosion, nuclear radiation corrosion)

6.Temperature range: -40 ℃~350 ℃

7.Hardness range: Shore A 70 degrees to 90 degrees

8.Color: Black,White,Amber, Dark Brown can also be specified by the customer.

 

DMB Seal can process customized standard and non-standard size FFKM perfluoroether O-rings according to customer requirements.