Sealing acrylic.

Discussion in 'Finely Finished' started by gagidlof, Apr 17, 2013.

  1. gagidlof

    gagidlof Tele-Holic

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    I'm doing a project that will be donated as an auction item for a fund raiser to send a mission group to Africa to help aids babies. Anyway I'm going to have the body painted in an African tribal-esque theme. Something along the lines of the Kai Eckhardt bass. The artist is working in acrylic so I'm just thinking ahead as to the lacquer. I'm thinking that a layer of de-waxed shellack before lacquer clear, does that sound right?

    Other ideas?

    I think I'll see if I can get a test piece with the same paint cause I figure I'll only have one chance at this one.
     
  2. Colt W. Knight

    Colt W. Knight Doctor of Teleocity Ad Free Member

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    What type of Acrylic? There are water based Acrylics, Acrylic Enamels, Acrylic Lacquer, and more.

    Compatibility between most modern finishes is a trial and error process. It sucks, I know.
     
  3. gagidlof

    gagidlof Tele-Holic

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    Hmmm... well I don't know yet. I'll find out more from the artist.

    Thanks Colt.
     
  4. TotallyReptiles

    TotallyReptiles Tele-Meister

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    Cant wait to see it. I love all these handpainted designs on guitars. It makes it truly a one of a kind guitar!
     
  5. HardlyDangerous

    HardlyDangerous Tele-Holic

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    Most Artists paints are a water based Arcylic paint.

    the safest and most durable clear is a 2k urethane.
    Alsa corp or dupont make them in rattle cans

    Acrylic enamel clear is good to seal it as well. Spray very lightly your first couple coats, a heavy coat can make the paints bleed.
    Lacquer clear can be used but again VERY light first couple coats. I would also test it on a test peice first. Some lacquers will eat the Acrylics

    my paintings and guitars I seal with arcylc enamel then clear with 2k urethane
     
  6. gagidlof

    gagidlof Tele-Holic

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    Thanks, HD.

    I'll look at the 2k stuff. I was hoping to clear in lacquer but we'll see what we have to work with.
     
  7. gagidlof

    gagidlof Tele-Holic

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    Well, Its finally ready to post pics.
    [​IMG]

    [​IMG]

    [​IMG]

    So what I ended up doing, I sealed the whole thing in shellac then buried it in a ton of lacquer.

    This one is destined for a charity auction to raise money for a mission to Africa, thus the theme of the art work. Cross your fingers folks and hope she raises some healthy bidding.
     
  8. TotallyReptiles

    TotallyReptiles Tele-Meister

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    Really cool looking and awesome job!
    So after the artist did his painting thing, you just coated it with shellac then lacquered it up?
     
  9. gagidlof

    gagidlof Tele-Holic

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    basically yes.

    I gave it a light coat of shellac then a 2nd heavier coat.

    Then I put on the lacquer, after a couple coats, a light block sanding to level out the texture from the art. Then lacquer, sand, lacquer, sand, etc.
    Once it was leveled out I layed on the lacquer heavy for a couple more coats and then let it sit for a couple weeks before polish.
     
  10. Buckocaster51

    Buckocaster51 Super Moderator Staff Member Ad Free Member

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    Very nice.
     
  11. gagidlof

    gagidlof Tele-Holic

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    Thank you, that means a lot.

    I got much of my technique from your epic thread.
     
  12. gagidlof

    gagidlof Tele-Holic

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    And after only being completed for a couple days she found a new home today at a charity auction. Here she is with the new happy owner:

    [​IMG]
     
  13. Buckocaster51

    Buckocaster51 Super Moderator Staff Member Ad Free Member

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    You're welcome.

    You made me proud.

    He looks very pleased with it.
     
  14. 61fury

    61fury Tele-Afflicted

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    That is really nice, I like the design a lot. The colors go well with the natural wood. I like the way the stripe weaves around the knobs.
     
  15. drmcclainphd

    drmcclainphd Tele-Afflicted

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    For future reference, Minwax makes a water based poly that's as good IMO as urethane: Polyacrylic. Water based means low odor/less hydrocarbon exposure. The surface tends to be smoother than the equivalent polyurethane (clear gloss comparisons), so I used it for aerospace stuff, over carbon fiber and texalium, and for pick guards cut from those materials.
     
  16. Waylanderer

    Waylanderer TDPRI Member

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    That's a sweet looking guitar. Kudos. Glad it raised money for a good cause.
     
  17. gagidlof

    gagidlof Tele-Holic

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    Thanks.

    and I learned stuff along the way.:D
     
  18. Silverface

    Silverface Poster Extraordinaire Ad Free Member

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    FWIW most thin-film acrylics can handle a couple lightly-sprayed seal coats of lacquer sanding sealer better than shellac, where the heavy alcohol content can bleed the heck out of many acrylic binders. Glad it worked OK.

    PS - one of my favorite color-coat products is Vanex (now owned by PPG) Breakthrough. I buy tinting bases or white, use universal colorants, spray the stuff - and once it's dry for 24 hours I can blow lacquer just like normal. It's an industrial acrylic - stuff's so tough it'll work as a floor coating, I use it on the deck of a 32' ocean sailboat, and it works great on guitars, Even handles relic processes really well and sands great.
     
  19. gagidlof

    gagidlof Tele-Holic

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    Hmmm... you've piqued my curiosity. I'm going to look this one up, I might have to give it a try sometime.
     
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