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Thread: How to blacken laser engraving?

  1. #1
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    How to blacken laser engraving?

    Say I wanted to remove the superficial laser engraving on a standard AR lower receiver - would alumablack work? Anyone ever tried? This isn't removing the identification marks on the gun or anything, but I'd like to get rid of some laser engraving like you would get out of a low-power trophy shop laser, or like you see on "custom" lower artwork. Basically it's just through the surface finish.

    If I use alumablack, is it going to be blotchy or discolored? Anyone have a better idea? I could dura/ceramacoat/moly it but I'd prefer to just darken the light engraving.

  2. #2
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    etching

    Do a search for electronic etching using a q-tip and wall wart...This may do the job quite well.

    HTH,
    Scott
    2 Chronicles 7:14

    The Citadel, Charleston South Carolina 1842 - 1995 RIP

  3. #3
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    I doubt that Aluminum Black will work...I've used that on some anodized aluminum parts before and it didn't seem to phase the lasering.

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    Black laquer-stick should do it

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    I've covered up the laser etching on flashlights with nothing more than a black sharpie. It doesn't look perfect but it cuts the bling, and you can always wipe it off again with some solvent.

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    don't know if this will work, but i'll be trying it myself on a project- chemically strip the engraving and soak in concentrated rit dye.

    colored aluminum is not much more than dying aluminum oxide, since hardcoating aluminum turns it black. therefor, i predict the aluminum oxide of the engraving (aluminum reacts with air to create a thin layer of aluminum oxide after exposed for a couple days) will accept an aggressive dye

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    We had a customer that wanted to remove the spiders off a set of spikes tactical . We soaked a cotton ball in aluma black and let it sit on the area then rubbed the engraving with the cotten ball it took repeated times but they did get black and disappear seems the trick is to let it sit on the area . I would at least give it a try
    me mother died when i was young before i got me toung to the sweep i was aprenticed. weep weep, weep weep your chimneys now i sweep. and in soot i sleep

    Thermo Arms inc FFL 07 SOT & hydro-graphic printed camos on moly and other types of coatings hydroprintservices.com

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    Quote Originally Posted by Sweep View Post
    We had a customer that wanted to remove the spiders off a set of spikes tactical . We soaked a cotton ball in aluma black and let it sit on the area then rubbed the engraving with the cotten ball it took repeated times but they did get black and disappear seems the trick is to let it sit on the area . I would at least give it a try
    Similarly there was a guy on TOS that wanted to remove or "lighten" the BCM logo and Paul recommended cold blue IIRC.

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    Sharpie paint pens, they are amazing, I discovered them this weekend and that was one of the items I tried to color.

  10. #10
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    Quote Originally Posted by j_king View Post
    Similarly there was a guy on TOS that wanted to remove or "lighten" the BCM logo and Paul recommended cold blue IIRC.
    that would work great on the carrier, but wont have any effect on the receiver.

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