Pillar bedding: Marine-Tex or Acra-Glass gel?

Discussion in 'Gunsmithing' started by Michael Eichele, Apr 6, 2010.

  1. Michael Eichele

    Michael Eichele Well-Known Member

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    What is your opinion on bedding compound? I have 2 options and only 2 options. Marine-Tex or Acra-glas. Which do you prefer and why?

    Also, is the Marine-Tex 'puddy' runny or is it like putty?

    Thanks for the advice.

    M
     
  2. GNERGY

    GNERGY Guest

    Back in the 70's all that was available was Acraglas. I used it to bed a couple bull barrel heavy varmint rifles I built. I was at the range shooting them this past weekend, so the stuff will hold up.
    The Joel Russo stock I am finishing up I used the Devcon because that is what everybody is using now. If I wouldn't of used that, I would of used Acraglas again.
    Tarey
     

  3. J E Custom

    J E Custom Well-Known Member

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    I have switched to the Steel Bed from brownells because it will flow but
    does not run and has a very controled cure time.

    I do all the taping and applying in my shop where the temp is 70o and have
    several hours to mess with the fit and alignment if needed ( it takes about 2 to3
    hours to kick off at this temp.

    Once everything is ok I set the rifle and fixture out in the sun (Normally around
    90o + here and it will cure in less than an hour and can be trimmed(The excess)
    without removing the action.

    The next day I will remove the action and do a final cleanup and reinstall the barreled
    action to set for 2 or 3 days before firing. (4 to 6 days if it is a boomer.

    This stuff is very tough and last a long time. also it is easy to work and if you have
    to remove the action (Heaven forbid) before it starts to cure the controled cure time
    may save you from a big mess.

    There are other bedding materials that work well but I just prefer the steel bed.

    J E CUSTOM
     
  4. NesikaChad

    NesikaChad Well-Known Member

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    Either works fine. The real work is the preparation and the process.
     
  5. Fitch

    Fitch Well-Known Member

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    I started with AcraGlas Gel, and while I got good results with it, I tried Devcon 10110 on the suggestion of a gunsmith friend and am absolutely delighted with it.

    Mixed Devcon 10110 is about perfect for working - it's about the consistancty of sticky soft serve icecream - soft enough to be easy to work into small places, sticky enough to stay where you put it (even on vertical surfaces), has a dependable long working time but cures completely in 16 hours, excess cleans up very nicely using Q-tips, machines beautifully for final trimming, and seems to put up with solvents and other abuses better than most and it's readily available on the WEB in 1lb and 4lb containers.

    Fitch.
     
  6. shortgrass

    shortgrass Well-Known Member

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    A BIG A+++++++ for that statment! That is where the mistakes are made. Have everything ready , read and understand the directions, use a QUALITY release agent , don't try to 'cut corners', and take your buddies, buddies buddies advice with a grain of salt.
     
  7. Michael Eichele

    Michael Eichele Well-Known Member

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    Is Marine-Tex runny or thick like a gel or cream?

    Thanks for the replies.

    I would use Devcon 10110 however the only two I have available now are MT or AG and I need this done by this weekend. It is prepped and ready to go. I just need to settle on a compound.
     
  8. shortgrass

    shortgrass Well-Known Member

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    Marine-Tex is between putty and Acra-Glass Gel, closer to AC gel. It will flow, some what, especially as you tighten the screws.
     
  9. Kevin Cram

    Kevin Cram <b>SPONSOR</b>

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    Depending on the temp that you mix it it's a little like p-nut butter. The warmer it gets the runnier it will be. I try to mix Marine Tex about 70 degree temp. Also use the gray and not the white. As said before take good care in your prep work, that's were you'll get the good finish from. Good luck.
     
  10. shortgrass

    shortgrass Well-Known Member

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    Marine-Tex is a little thinner than A.G.gel, but I think it's a lot tougher when cured. Mix as directed, if it's too thin, wait a few minutes and it will thicken some. "Pot life" is 20/30 minutes, maybe a bit longer. If ya' got your 'ducks in a row' you should not be pushed to get the work done.
     
  11. Michael Eichele

    Michael Eichele Well-Known Member

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    Thanks for the info guys.

    I went with the marine tex (grey) and it turned out flawless. I was pleasently suprised how easy it was to work with and clean up. I used ac once and I am much happier with the marine tex.

    Thanks again!

    M
     
  12. Stocky

    Stocky <strong>SPONSOR</STRONG>

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  13. BobbyL

    BobbyL Well-Known Member

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    My vote goes to marine-tex all the way. It's about as tough as this kind of stuff gets and bonds like no other. I do agree with the note that says its matters more in your prep work then what you use.