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Thread: acrylic engravings dont turn white

  1. #1
    Join Date
    Sep 2011
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    naples florida
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    acrylic engravings dont turn white

    hi
    I don't know everybody is telling that the engraving on cell cast acrylic turns white, but I don't have this it stays clear. I got real cellcast acrylic from a certified artist place with the backing on it where is printed cellcast.
    does somebody can explain why this is??
    greetings
    waltfl

  2. #2
    Join Date
    Jun 2010
    Location
    Eustis Florida
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    Quote Originally Posted by walter hofmann View Post
    hi
    I don't know everybody is telling that the engraving on cell cast acrylic turns white, but I don't have this it stays clear. I got real cellcast acrylic from a certified artist place with the backing on it where is printed cellcast.
    does somebody can explain why this is??
    greetings
    waltfl
    If it stays clear then you have extruded acrylic. Cast acrylic turns white. I believe Cell Cast is a brand
    Epilog Fusion 32 60W

  3. #3
    The protective cover on all the cast I have purchased over 17 years has been paper while the extruded has always been a plastic cover. I suppose there may be exceptions but I haven't seen them.

    If you really do have cast acrylic then I would test several focal lengths to see if you can improve the results.
    Mike Null

    St. Louis Laser, Inc.

    Trotec Speedy 300, 80 watt
    Gravograph IS400
    Woodworking shop CLTT and Laser Sublimation
    Dye Sublimation
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  4. #4
    Join Date
    Sep 2011
    Location
    naples florida
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    278
    no its real cell cast with paper backing printed . it doesn't matter which focal length even totally out of focus it will stand clear.
    the only where it showed white was when I left the paper backing on it but this goes away after cleaning.
    I don't know if its just me maybe murphy's law catched me
    greetings
    waltfl

  5. #5
    How much speed and power are you using? If you put a lot more heat than needed, cast can go somewhat clear. Only use the power needed to make the mark. Don't overpower it.
    Lasers : Trotec Speedy 300 75W, Trotec Speedy 300 80W, Galvo Fiber Laser 20W
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    Real name Steve but that name was taken on the forum. Used Middle name. Call me Steve or Scott, doesn't matter.

  6. #6
    Perspex branded cast acrylic has plastic covering, one side is marked "Face" the other is plain white.

    cheers

    Dave
    You did what !

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