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SpeedFire Cone and Burner
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  • SKU: 56690_base

SpeedFire Cone and Burner

$97.95
    DESCRIPTION

    FIRE BY COLOR - NO PYROMETER NEEDED!


    The SpeedFire® Cone & Burner is the latest addition to the SpeedFire® family of firing solutions and uses propane to effectively fire:

    • One Fire Sterling PMC in 45 minutes

    • PMC 3 and PMC+ in 30 minutes

    • Art Clay Silver in 15 minutes

    • Art Clay Copper in 20 minutes

    (Times shown are approximate)

    • Can fire more than of 100 grams of clay creations

    • Firing surface is about 3" in diameter

    • Visually see your work while firing

    • Coleman tanks have about 100 min. of fuel

    • BBQ tank has about 1500 min. of fuel

    NOTE: Test bar testing is recommended. We use 1/2” x 1.5” x 1mm thick samples.

    Firing times will vary depending on stove setting and air movement.

    Read Tim McCreight’s FIRING INSTRUCTIONS below!

    SpeedFire® Cone & Burner

    Firing Instructions

    by Tim McCreight

    “Firing By Eye”

    Judging temperature when metals are very hot is challenging because photographs cannot capture the light phenomenon accurately. Experience is your best teacher and we suggest investing a small amount of clay to master firing by eye. Make a small strip of clay about the size of a paper match and allow it to dry. Light the burner and set the test strip on the wire mesh screen. You will see a wisp of smoke and a flame similar to the flame of a candle as the binder burns away. This will last only a few seconds.

    As it heats, the strip will shrink slightly and take on a pinkish color. This shifts to a yellow-orange color that literally radiates outward. This is not a color you could duplicate in paint or photograph because it has a glowing quality. This is the color you want to hold for 45 minutes (when firing One Fire Sterling PMC). Memorize this color and you will have mastered firing by eye. This applies to all silver clays fired with the SpeedFire™ & Burner.

    But to complete your education, turn up the heat slightly and watch what happens. You will see the surface of the test strip appear wet, a change described as “sweating.” You will then see the edges of the strip soften and curl as the strip starts to melt. Now that you know what this looks like, you will be able to turn the heat down as soon as you see your artwork start to sweat. And aren’t you glad that you learned this on a test strip instead of a treasure you worked on a long time!

    …Tim McCreight

    Additional firing notes:

    In addition to all grades of fine silver clay, it has also proven to be an ideal firing method for the recently released Art Clay Copper allowing a hands free firing time of just 20 minutes without the cumbersome task of holding a torch on the copper clay piece for 5 or more minutes and can fire larger pieces at one time than can be done with a torch. Just pay close attention to firing color to prevent over firing.

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