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Thread: looking for aluminum

  1. #1
    Join Date
    Dec 2006
    Location
    Shelbyville, Tn
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    1,257

    looking for aluminum

    Hi Gang,
    I'm looking for black laserable aluminum, .012" thick, with a brushed aluminum look underneath. I don't see it in Johnson's or JDS.
    Brian Robison
    MetalMarkers
    Epilog Mini
    Rabbit 1290

  2. #2
    Join Date
    Jul 2005
    Location
    Sammamish, WA
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    7,630
    I have never seen that.

    If it has brushed aluminum underneath, the surface will also be brushed (show through). You might just get plain brushed aluminum and spray it with paint to engrave through. I've even brushed my own but that's a little tricky to get to look good and even.



    Sammamish, WA

    Epilog Legend 24TT 45W, had a sign business for 17 years, now just doing laser work on the side.

    "One only needs two tools in life: WD-40 to make things go, and duct tape to make them stop." G. Weilacher

    "The handyman's secret weapon - Duct Tape" R. Green

  3. #3
    Join Date
    May 2006
    Location
    Oxnard, CA
    Posts
    117

    Standard Thickness/Finish

    Brian,

    You'll find that most aluminum from engraving supply houses will be either .020 or .025 inch thickness.

    Occasionally, I've seen .015 inch, but it's been sublimation aluminum.

    Most (if not all) laserable aluminum I've seen engraves with a shiney image and not satin or brushed.

    David "The Stunt Engraver" Lavaneri

  4. #4
    Brian

    this may be a do it yourself project. Check your local sheet metal distributor and find a good quality paint.
    Mike Null

    St. Louis Laser, Inc.

    Trotec Speedy 300, 80 watt
    Gravograph IS400
    Woodworking shop CLTT and Laser Sublimation
    Dye Sublimation
    CorelDraw X5, X7

  5. #5
    Join Date
    Dec 2006
    Location
    Shelbyville, Tn
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    1,257
    I think I may just pass on this one. The sample I have looks more like a satin underneath than brushed. I was only going by the print. I didn't measure the thickness of the sample to see if it conforms to the print yet. I'll do that today.
    Brian Robison
    MetalMarkers
    Epilog Mini
    Rabbit 1290

  6. #6
    It is possible that your sample was engraved using a burnishing process with a rotating diamond tool.
    Mike Null

    St. Louis Laser, Inc.

    Trotec Speedy 300, 80 watt
    Gravograph IS400
    Woodworking shop CLTT and Laser Sublimation
    Dye Sublimation
    CorelDraw X5, X7

  7. #7
    Join Date
    Dec 2006
    Location
    Shelbyville, Tn
    Posts
    1,257
    It looks laser engraved to me. I can't feel any edge to the engraving.
    Brian Robison
    MetalMarkers
    Epilog Mini
    Rabbit 1290

  8. #8
    Quote Originally Posted by Brian Robison View Post
    The sample I have looks more like a satin underneath than brushed.
    Hi Brian,

    Not sure where you will get 0.012" aluminum but you could try...

    http://www.industrialmetalsupply.com/

    We get all our aluminum from them.

    To get the satin finish use Caustic soda (Lye) in about a 10% concentration in water, let the aluminum soak for about 3 to 10 minutes until it looks right. Rinse off with water. Use rubber gloves and a clear plastic face shield. The concentration is not so great that it will eat skin, but a splash will sting the cr.p out of your lips. Don't ask!! (my mantra! )
    Dave J
    Forums: Where all too often, logic is the first casualty.

  9. #9
    Join Date
    Jul 2005
    Location
    Sammamish, WA
    Posts
    7,630
    I have used Metal Supermarkets, which has 3 local stores. I see they have one in Nashville which is likely closest to you.

    .016 and .02

    http://www.metalsupermarkets.com/



    Sammamish, WA

    Epilog Legend 24TT 45W, had a sign business for 17 years, now just doing laser work on the side.

    "One only needs two tools in life: WD-40 to make things go, and duct tape to make them stop." G. Weilacher

    "The handyman's secret weapon - Duct Tape" R. Green

  10. #10

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