Zirc Ox Crucible Coat Concentrate (2lbs)

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Zirconium Oxide Concentrate for interior air brush painting of fused silica crucibles uses for Platinum, Palladium, and Stainless Steel casting. By doing a light coat of this material on your Pt crucibles, you greatly increase the life of your crucibles and reduce the risk of Si contamination of your precious metals. Silicon contamination of Platinum or Palladium will cause your castings to become brittle scrap... You can use this material right out of the bottle or you can dilute it to make it spray easier. It can also be applied with a paint brush but using an air brush is suggested. Use one crucible per one flask daily and then recoat and allow to cure overnight. You can also put the freshly painted crucibles in an oven that is cooling down after a day's cast to help them dry faster.

For fused silica Pt and Pd crucibles only. Not for Graphite lined crucibles or crucibles that are to be used for Titanium casting!

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