Video: What Is Out Gassing in Encaustics?

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What is out gassing and how is it used in encaustic wax painting? Learn this and more in this free online art lesson about encaustic wax painting and its uses taught by expert John Vanderbrooke.

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Video Transcript

Out gassing is a problem that happens with wax painting and what happens here is that as I said, you take your polishing rag and you polish it and if you leave it for a long period of time maybe, even a year or so, you might find that a bloom begins to appear on the wax. It will be like a ghosty bloom that would show up and it would make the picture dull basically. Now, it's not a disaster because all you have to do is take a polishing cloth and start all over again to polish it and you'll remove the bloom, but it's something that you have to be concerned about as far as putting it under glass. Now, here is a case where if it's under glass like this and it doesn't have a mat around the image itself to push it away from the glass, there could be out gassing that happens on the glass itself. And then you wouldn't be able to get at it to polish it so if you're going to frame a piece, don't do it this way. Put a mat under the glass and then your painting under the mat, which gives it just a little space so it's not going to out gas right on the glass surface.

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What Is Out Gassing in Encaustics?

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