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EMD (Enhanced Materials Division)

Enhanced Materials Division (EMD)

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Rulon® 641 | With USP Class VI Approval

Rulon 641

Rulon 641— the only filled PTFE material with USP Class VI approval for direct contact with human tissue and fluids — is a powerhouse in the medical and food processing industries. It offers excellent load and wear resistance plus good chemical resistance.  It can also withstand strict sanitation requirements, and its white, stain-resistant color indicates a sanitary compound.

Rulon 641 delivers:

  • Works against stainless steel and aluminum, without wear
  • Self-lubricating properties
  • Maintains performance from cryogenic to +450° temperatures
  • Meets medium load and speed requirements
  • PV rating of 10,000 (higher with intermittent service)




Max Load "P" (psi) Mpa: 1,000/6.9
Max Speed "V" (fpm) m/s: 400/2.0
Max "PV" (psi-fpm) (Mpa × m/s): 10,000/0.35

Mating Surface Steel and Stainless Steel

Rb25 and higher
Mild, 303 and 316


FDA compliant, steam, wet, dry, vacuum

Relative Rating (1=Low, 5=High)

Coefficient of friction: 1
Creep resistance: 4
Insulative property: Yes

Rod and Tube

Extruded up to 10' long
Molded up to 12" long
Extruded 2" max O.D.
Molded 47" max O.D.
Precision grinding or machining available for some sizes

Sheet and Tape

Tape 38" width max. Skived up to 1/4" thick
Molded up to 24" x 3" thick. Max thickness 3"
Precision grinding or machining available on thickness


Contact district sales manager
Full machining capabilities available