BPI^® Lens Prep II™ conditions lenses before tinting
Lens Prep II™ conditions plastic lenses with a special ionizing agent that leaves a positive charge on lens surfaces. This enables the lenses to quickly and evenly absorb negatively charged BPI Molecular Catalytic™ tints. Lens Prep II™ dissolves oil and grease. Can be used cold, but works best when heated in your lens tinting instrument. Lens Prep II™ is available in quarts or gallons.

Lens Prep II™ is an important ingredient of the Molecular Catalytic™ tinting systems. It ionizes the lens positively with a special coating that allows it to exhibit a charged interface opposite to that of the dye. This potential difference attracts the dye ions to the lens surface for fast color absorption. Lens Prep II™ is a concentrate and should be diluted approximately one ounce to 32 ounces (25.5 ml to 946 ml) of water. Be sure not to use too much, or else streaking will occur because of the unevenness of the positive charge on the lens. It should be changed every 3-4 days, depending on use. Do not rinse or wipe lens after using Lens Prep II™; to do so will negate its effectiveness.

BPI^® Activator™ conditions hard-coated lenses before tinting
Activator™ conditions hard coated lenses (polycarbonate, high index and hard coated CR-39™ to receive tint quicker and more evenly.

BPI^® PolyPrep™ for the preparation of uncoated polycarbonate lenses
 Diluted with water, PolyPrep™ is a primary bath that prepares polycarbonate lenses for uniform tinting.