C-FLEX (50 A) Tubing


  • Physical properties similar to silicone with chemical compatibility of TYGON®.
  • Inexpensive.
  • Excellent biocompatibility.
  • Smooth bore.
  • Nontoxic, no leachable plasticizers.
  • Lower gas permeability than silicone.
  • Use with many acids and alkalies.


  • Not recommended for use with oils.
  • Moderate pumping life.

Application Suitability:

Acids: Good
Alkalies: Good
Organic solvents: Not recommended
Pressure: Fair
Vacuum: Good
Viscous fluids: Fair
Sterile fluids: Excellent

Physical Characteristics and Compostion:

  • Thermoplastic elastomer.
  • Styrene-ethylene-butylene modified block copolymer with silicone oil.
  • Excellent tensile and tear strength.
  • Soft material.
  • Opaque, white.

Temperature Range:

-100 to 275°F (-73 to 135°C)

Meets Classifications:

  • USP Class VI
  • FDA 21 CFR 177.2600

Gas Permeability:

cc x mm
x 10-10
(cm2 x sec. x cm Hg

CO2: -
H2: -
O2: 150
N2: -


  • Sterilize by ethylene oxide (ETO), autoclave or gamma irradiation.

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