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Has anyone used a foam earplug to plug a barrel for painting?

Discussion in 'Gunsmithing and Repairs' started by Z-Michigan, Sep 10, 2010.

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  1. Z-Michigan

    Z-Michigan Member

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    I would like to repaint a barrel on one of my rifles, including the crown area if possible, but definitely don't want any paint getting in the bore. After looking at cork/stopper options, it dawned on me that a standard foam earplug would make a good stopper for a .30 cal barrel. Has anyone done this before? Does it work, or have any drawbacks?
     
  2. Zak Smith

    Zak Smith Moderator Emeritus

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    It should be fine. I've used them in a similar situation to block the bore hole of a suppressor in a bead blaster.
     
  3. rondog

    rondog Member

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    What a great idea!!! I've never needed to plug a barrel, yet, but always wondered what would be a good way to do so.
     
  4. Digger Odell

    Digger Odell Member

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    Hi Z-Michigan

    Test the foam before you put it in the barrel. Some liquids will melt or dissolve different foams & you don't want to end up with a blob in your barrel.

    Digger.
     
  5. HankC

    HankC Member

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    A little paint in the bore is not a problem. Clean up at the first shot. May use a little grease to prevent the paint stick to the bore.
     
  6. Z-Michigan

    Z-Michigan Member

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    Thanks. I will test one outside the barrel first to make sure it doesn't melt. This should really beat the $20 pack of plugs from Durakote, or spending hours hunting down rubber stoppers at a home store.
     
  7. 19&41

    19&41 Member

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    When I had my barrel parkerized, I got a 1" square of 1/4" thick sheet rubber and sharpened a .308 case neck from the inside and used it to cut a few plugs. I used two in the muzzle end and expanded the case neck a little and smeared a bit of rtv on the case and inserted it into the chamber. You probably wouldn't need the rtv for painting though. The plugs pulled out with a dental pick.
     
  8. nastynatesfish

    nastynatesfish Member

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    Go to an ace hardware if you have one handy. They sell rubber plugs that fit by all the screws, that's what I use. Or I jus use a stray bullet and tap it into the bore enought to hold itself and remove it with a letherman afterwards
     
  9. slicksleeve

    slicksleeve Member

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    The first time I Duracoated a gun barrel, I cut a tree limb and whittled it down to a point. I drove it into the end of the barrel, and used the new plug/stick to hang it up in the air to spray the Duracoat on. This was a .54 caliber muzzle loader barrel I'm talking about though, you might not want to do that to any nice gun.
     
  10. Centaur 1

    Centaur 1 Member

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    Earplugs work great for painting, they're what I use.
     
  11. Clark

    Clark Member

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    I have used Silicone Rubber Tapered Plug for painting and bluing.

    It is a horrible mistake to get bluing or paint in the bore.

    Copper sticks to blued bore like baby droppings stick to a blanket.
     
  12. Rugby8

    Rugby8 Member

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    Yut
     
    Last edited: Oct 13, 2010
  13. rc109a

    rc109a Member

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    Does getting paint at the end of the bore mke any difference? Everytime I painted them it cleaned right out after the very first shot. I also gave the crown a smoother finish. Most of mine were painted with krylon and two with moly resin.
     
  14. schmeky

    schmeky Member

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    For pistols, I drive a hardcast bullet into the bore, impervious to any solvents, will not move until you want it to, and seals the bore well.
     
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