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Cerrosafe --how to use?

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Unread 01-17-2012, 06:19 PM
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Join Date: Jun 2010
Location: greenwood, IN
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Re: Cerrosafe --how to use?

Cerrosafe is nothing more than generic Cerrobend, and was used in industry for years till better stuff came around. It has an extremely low shrinkage factor (way less than .001" per inch of diameter), and is probably much closer to .00025" per inch of diameter. I used to have to pull plugs I made with it to cover bolt holes with a drill and tapped hole and a knocker. It was that tight! I'd be checking the chamber with a bore scope before trying it one more time. I'd almost bet there is a ridge, or the chamber was cut with a banana shape all the way around in the middle of the case body contact. With anykind of taper in the chamber it should be completely free in about 1/8" of movement. Look real close where the body and shoulder meet for a ridge or a groove at the junction. Might try coating the chamber with Johnsons Pledge about three times before pouring the metal. You can decant it from a spray can, and apply it with a cheap artest brush. Pledge is an excellent release agent when working with epoxies.
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    Unread 01-17-2012, 08:42 PM
    Platinum Member
    Join Date: Jul 2004
    Location: Texas
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    Re: Cerrosafe --how to use?

    Clean the chamber, Plug the barrel with an earplug just past the free bore into the rifling
    about a 1/4 ".

    Then warm the barrel up just a little with a hair drier (warm to the touch not hot).

    Place the barrel vertical and pore the Cerrosafe in the center of the chamber being careful
    not to fill it beyond the top of the barrel (If it is over filed it will hang up on the inside of
    the action).

    In a few minutes, using a bore jag smaller than the cleaning rod, tap the Cerrosafe casting
    out of the chamber, (Be sure to use a rod guide that goes in the muzzle to prevent any damage
    to the crown). place the back end of the action on a piece of carpet to keep from damaging
    the casting of your chamber.

    You should not have any problems unless there is something very wrong with the chamber.

    "PRESS ON"
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    Unread 01-17-2012, 10:08 PM
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    Join Date: Jul 2007
    Location: terlton, oklahoma
    Posts: 379
    Re: Cerrosafe --how to use?

    I got it done only let it cool for 15 minutes and it came right out
    thanks guys.
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    Unread 11-17-2012, 05:05 AM
    Junior Member
    Join Date: Nov 2012
    Location: Canada
    Posts: 5
    Re: Cerrosafe --how to use?

    Hi dear am newbie here and i want to say that i also want to know that how to use it and if you get any suggestion about it this than kindly also contact me i really need some suggestions .
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    Unread 11-18-2012, 09:26 AM
    Join Date: Mar 2010
    Location: on the Southern Plains
    Posts: 1,906
    Re: Cerrosafe --how to use?

    Originally Posted by Anderson0 View Post
    Hi dear am newbie here and i want to say that i also want to know that how to use it and if you get any suggestion about it this than kindly also contact me i really need some suggestions .
    Follow the instructions in JE Customs' post. The only thing I do differently is use a patch instead of an ear plug to plug the bore. I, also, very lightly oil the chamber using a light oil, like wd-40 or Kroil,,, very lightly!
    "Shoots real good!": definition; it didn't blow-up in my face. 1993 graduate Montgomery Community College 2yr. gunsmithing program
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