Pharm-A-Clear LH™ | Low Hysteresis Silicone

For the most critical and exacting meter-dose peristaltic-pump applications, we developed our Pharm-A-Clear LH (low hysteresis) platinum-cured Silicone Tubing. The “LH” series tubing is manufactured from a platinum-cured silicone compound that exhibits many unique characteristics which are not typical of other platinum-cured silicones. Our Low-Hysteresis Silicone exhibits the life span of peroxide-cured silicones with purity levels that only a platinum compound can assure.

Our tubing is certified Animal derived ingredient free (ADIF), ISO 1099-5, and USP Class 6. Pharm-A-Clear LH™, is recommended wherever high precision dosing, high purity, and longer tubing life is desired.

Temperature Rating:
  • -90°F to 430°F *
  • Peristaltic Pumps
  • Bio Process Equipment
  • USP Water
  • Hot WFI
  • Sterile Transfer
  • Cell-Culture Media
  • Asceptic Fill and Transfer
  • Medical Grade
  • Platinum Cured
  • Superior Bio Compatibility
  • Rated For High Temperatures (Steam in Place)
  • Extremely Flexible
  • No Taste or Odor Imparted
  • Non-Pyrogenic
  • Lot and Batch Traceable
  • Continuous Coils
  • Available with Unitized Sanitary (Tri-Clamp) Ends
  • Molded Manifolds
  • U.S. Pharmacopoeia Class VI
  • ISO 10993-5
  • Cytotoxicity Criteria
  • Meets 3-A Standards
  • CFR Title 21 Section 177.2600
  • Current Good Manufacturing Practices (CGMP)
  • Animal Derived Ingredient Free (ADIF)
  • Ethylene Oxide (ETO)
  • Autoclave
  • Gamma Irradiation
Material Properties
Pharm-A-Clear C™ Physical Properties *
Value ASTM Test
Specific Gravity 1.15
Hardness, Shore A 50 D 2240
Tensile Strength psi (Mpa) 1200 (8.3) D 412
Elongation (%) 720 D 412
Tear Resistance, Die B lbf./in. (KN/m) 200 (35.1) D 624
Tensile Modulus @ 100% psi (Mpa) 250 (1.7) D 412