Gas Permeable

Contamac's gas permeable (GP) materials offer a wide range of properties suitable for the production of GP contact lenses. Developed using cutting-edge technologies, Contamac gas permeables feature a wide range of oxygen permeabilities, excellent wettability and high stability. 


Featuring a wide range of oxygen permeabilities, excellent wettability and high stability has made the Optimum range of gas permeable (GP) materials one of the most popular choices on the market.


Optimum Infinite

Optimum Infinite is a gas permeable (GP) material with a unique combination of oxygen permeability (180Dk) and flexural modulus (1341MPa). 


Optimum LD

When it comes to large diameter designs, most lathing time is spent on the back surface roughing process. Optimum LD (Large Diameter) materials reduce cycle time and wear and tear, thereby increasing profits.


Optimum | Tangible Hydra-PEG

Tangible Hydra-PEGTM is an advanced contact lens coating technology that encapsulates Contamac’s Optimum GP material in an ultra-thin layer of PEG-based polymer. The result is called Optimum | Tangible Hydra-PEGTM.



Contamac’s basic F2 GP range uses fluorosilicone acrylate to improve wettability and deposit resistance.


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