I did this just a couple of weeks ago for a class I taught. I found out that it takes FOREVER for the powder to melt! Luckily, I learned that while I was preparing for the class.
But I was like you - afraid the class would break. I even got to the point where I was standing up holding my heat gun as far away from me as possible just in case the glass did shatter! :shock:
What I found out is that even though the class gets really hot, it does just take forever to melt the powder and it does actually work. I had originally planned on embossing the feet of some stemware, and now I'm glad I went with a thick, heavy candle holder instead.
Oh, and one more thing... You know how you move your heat gun around when you do regular embossing so you don't scorch the paper? I learned that on glass it works best to just hold the gun in one spot until the powder starts to melt. Not only does the powder have to get hot enough, but so does the heat gun. In my class, we had two different brands of heat guns and one definitely took a lot longer than the other because it didn't get as hot.
Hope this helps some!
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