TIPS FOR REMOVING ENAMEL FROM METAL

  • Leader
    May 11, 2010 3:34 PM EDT
    ETCHALL  - dip n etch liquid - Reusable - 
     
     
     
    This is a wonderful product for removing enamel from your metal - 
    Fill a small glass or plastic container with enough Etchall to cover the enamel -  it should take 1- 2 days to totally remove all enamel from your metal.
    Check on your piece every few hours - rinse with a bit of water - dry with paper towel and put back in the solution until all enamel is removed.
    Clean well with glass brush and detergent and running water. 
     
    You may reuse the Etchall again - This product is expensive but worth every penny.
     
     
     
     
     
     
     
    Creme of Tartar
    PASTE FORMULA - Caution! This is an EXPLOSIVE recipe. (use Etchall instead)
     
    Mix equal parts of TABLE SALT and CREAM OF TARTAR with just enough WATER to make a thick paste.
     
    Cover the Enamel completely with paste.
    Place in a preheated kiln at l450 - l500 degrees and leave in for 2 mins.
     
    Paste will flare up in the kiln, smoke and turn black.
    Remove enamel from kiln and drop into a container of ice water.
    Enamel should then flake off.
    Use a steel bristle brush to remove stubborn enamel.
    Repeat process again if needed.
     
    *NOTE -
    Cream of tartar is a commonly used product in the culinary world. However, many times people find themselves asking, "What is cream of tartar? What is a tartar and how do you get its cream?" No need to question anymore; cream of tartar is a very specific, useful product in cooking.

    Cream of Tartar
    Potassium hydrogen tartrate is the scientific name for cream of tartar; it actually has nothing to do with dairy; in fact, it actually is an acid salt. The actual cream of tartar occurs when tartaric acid is partially neutralized with potassium hydroxide. This chemical reaction turns it into a salt. Wine making is responsible for cream of tartar, as this salt occurs as a byproduct of wine.

    Kitchen Uses

    Cream of tartar is an acid and is used because of that quality; it is soluble in water and alcohol. Cream of tartar is also used as an antioxidant for foods. In culinary processes, its most common use is to stabilize and increase the volume of beaten eggs. Cream of tartar prevents the formation of crystals; therefore, it is often used in baked goods, candies, soft drinks and even in photography. Baking powder often contains cream of tartar to add acid to the mixture.

    Non-culinary Uses

    For domestic uses, cream of tartar is great for cleaning copper and brass cookware. Ants do not cross a line of cream of tartar salt. Sprinkle some around an ant mound and they will not leave that circle. Cream of tarter mixed with a little water can clean rust from fabrics, and, when mixed with hydrogen peroxide, it is an effective cleaner for bathtubs.
     
    NOTE: only attempt this with SMALL pieces - I tried it with a very large tile of copper and the ice water and sludge erupted all over my studio and was very hot when it spattered. Besides the immense mess to clean up the enamel never popped off as expected by this experiment.
     
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    DIAMOND Burs -
     
    Use Fine Diamond burs to gently and gradually grind out the areas of enamel.
    Rinse thoroughly under water with a glass brush and dry.
    Reapply new enamel.
     
    DENTAL Drills -
     
    Ask your dentist or buy on line at a Dental Supply house -
    These fine drills are great for removing small spots of stuck on enamel on metal and
    texturing your metal surface.
     

     

  • April 26, 2012 7:16 AM EDT

    I tried this last night for the first time.  It worked pretty well!

    What I found interesting was that the backs of the copper pieces had no enamel, scalex, or other protection against oxidation - yet they did not oxidize very much at all.

    Apparently, the flames from the mixture burning off used up almost all the oxygen in the kiln.

    Woke up this morning with a cunning plan.

    I'm seriously considering putting in a little pyre of this mixture in the kiln when I do copper wire cloisonne pieces.  Hopefully, the wire will barely oxidize...

  • May 1, 2012 10:17 PM EDT

    I had a few minutes to spare this evening and gave my idea a try.

    I took some scrap copper sheet and cleaned it up, sprinkled some clear enamel on it and placed some copper wire on that.  No Klyrfire, scalex or any other protective product over the copper.

    I put the tartar/salt mixture in a tiny copper bowl at the back of the planche and my enameled piece on a trivet on the front of the planche.

    The tartar/salt mixture caught fire and burned the oxygen out of the kiln chamber.

    The enamel fired clear and clean.  I popped the copper piece into the pickle for a minute and then gave it a VERY light brash brushing.  It cleaned up beautifully!

    No nasty, crusty, hard to clean oxidation on the copper!

    I'll be writing Paragon to ask if there is anything to worry about regarding damage to the kiln. 

    I have yet to do any experiments with colored enamels.  I suspect some of them may fire into somewhat different colors without the oxygen.  It's also possible that the top most layers won't need to use this trick because the copper cloisonne wire will be covered on all the sides, so they might oxidise to the normal colors.

    Hopefully I'll have some time this weekend to test it out...