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Thread: Poly carb dye job

  1. #1
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    Poly carb dye job

    Have a pair of poly carb progressives that were digitally surfaced on new Gerber Coburn equipment. After edging for the frame, I dyed them to a solid gray three using BPI tint. The lenses end up with a round circle in the center that is darker than the rest of the lens. Looks like the place the lens is held for processing. Surfaced a new pair, same thing. Have surfaced and finished a third pair but afraid to dye them. Any thoughts? Suggestions?
    Mike

  2. #2
    OptiWizard
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    Is it possible for you to post pics of the lenses. Here are my thoughts. First off are you using a surface saver tape? This keeps lenses free off blocking contaminates such as Freebond/Onyx. The circles might be the result of "stress" created from the block. Try relaxing this stress by soaking in a warm to hot water bath for several minutes, shock with cold water then attempt tinting. Hope this helps.

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    Quote Originally Posted by mike00 View Post
    Have a pair of poly carb progressives that were digitally surfaced on new Gerber Coburn equipment. After edging for the frame, I dyed them to a solid gray three using BPI tint. The lenses end up with a round circle in the center that is darker than the rest of the lens. Looks like the place the lens is held for processing. Surfaced a new pair, same thing. Have surfaced and finished a third pair but afraid to dye them. Any thoughts? Suggestions?
    Mike
    have you tried tinting before edging? that will tell you if it's from edging or surfacing.

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