Unisil is Contamac’s latest silicone hydrogel material, developed specifically to add greater versatility to your soft contact lens portfolio via its finely-tuned and balanced blend of monomers. Unisil’s unique polymer matrix provides outstanding surface wettability, visual acuity, and a higher Dk than conventional hydrogels to improve corneal health. The result is a material offering superior levels of stability and reproducibility. Unisil also has a Class II UV blocker as standard to satisfy the demands of daily wear and daily life.

Unisil is dimensionally stable making it ideal for a wide range of multi-pack modalities.

Unisil technical information

Material characteristics

Oxygen Permeability (ISO at 35°C barrers)50
Water Content62%
Refractive index at 20°C dry1.511
Refractive index at 20°C hydrated1.398
Tensile Strength0.88
Elongation to Break>200%
Shore D Hardness86

Manufacturing consumables

  • Low melt blocking wax
  • Contapol 2 polishing compound
  • Cotton polishing cloth
  • Delrin polishing cups
  • Delrin polishing sponge


  • Tweezers
  • Glass vials
  • Stoppers
  • Aluminium top seals
  • Flip tear up seals
  • Shrink-wrap sleeves
  • Net vial sleeves
  • DMV soft lens remover
  • Lens catch mat


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