What is Kel-F?

Kel-F® was a trade name for PCTFE (polychlorotrifluoroethylene) utilized by the 3M® Company. In 1995, 3M sold the rights to Daikin® Industries, Ltd, who produces the raw material today under the trade name Neoflon®. PCTFE with the brand Kel-F is no longer available in the marketplace.

What is Neoflon PCTFE M-400H?

Neoflon PCTFE M-400H is a fluoropolymer that has high tensile strength, dimensional stability, and retains its high-performance properties over a large temperature range (-400° to 380°F). This grade of PCTFE has superior mechanical characteristics and gas barrier properties to PFA and FEP. PCTFE is melt-processible, and can be extruded or molded into sheets, rods or tubes.

What are the Benefits & Advantages of PCTFE?

• Excellent thermal and chemical stability
• Low gas permeation and outgassing
• Very low moisture absorption and permeation
• Highly resistant to cold flow
• Very rigid and tough
• Excellent dimensional stability
• Extremely good low temperature properties to -400°F
• High chemical-resistance
• Resistant to oxidation
• High compressive strength
• Non-flammable
• Radiation-resistant

What Types of Products can be Manufactured from PCTFE?

• Lip seals
• Valve seats & stems
• O-Rings
• Gaskets
• Washers
• Sleeve & thrust bearings
• Bushings
• Liner for chemical applications
• Impellers
• Diaphragms & plugs

What Applications are Products Made of PCTFE Used In?

• Cryogenic and chemical processing components
• Seals and gaskets
• Aerospace valve seats, pump parts, impellers, diaphragms and plugs
• Laboratory instruments
• Nuclear service / high radiation exposure
• Liquid oxygen and liquid nitrogen valve linings