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  Fire Coat Jar - 10 oz
  Fire Coat Jar - 10 oz


 
The perfect size and shape for making and storing fire-coat or boric acid flux.

Price: $6.50

Product Dimensions: 4" x 4" x 4"
Inside Dimensions: 10 oz jar
Made in USA
Creative Reward Points you'll earn: 7


Product Code: SOL-110
Qty:

Details
 
Use to mix boric acid and denatured alcohol for an effective, low cost fire coat.

This lovely little glass jar is the perfect size and shape for making and storing fire-coat or boric acid flux. To mix a fire coat to protect copper-bearing alloys from firestain and firescale during heating, place about 1/2" of boric acid in the bottom of the container. Add enough denatured alcohol (make sure it's denatured and not rubbing alcohol!) to bring the jar to half full. (The ratio can be anything from half boric acid and half denatured alcohol to 1/3 boric acid to 2/3 denatured alcohol...the measurements are not critical. There just needs to be enough liquid to get the boric acid into solution when it is stirred so the metal being treated can be completely coated in the boric acid. The the wet piece is ignigted and the denatured alcohol burns away leaving a protective coating of boric acid over the surface. When the article is heated, the boric acid melts and creates a flux coating that protects the piece from fire scale and fire stain for a limited amount of time. After heating, be sure to soak the article in a pickle solution to dissolve away the flux and the oxides that have been created during heating.



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