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super easy question about priming a mold
Posted: Tue Dec 10, 2013 3:35 pm
by lorimendenhall
dumb question but I've heard differing info... how many uses can you get out of a ceramic mold primed with Hotline Primo Primer? thanks!
Re: super easy question about priming a mold
Posted: Wed Dec 11, 2013 11:12 am
by Sharol
It depends upon the temperature your slumping at, the shape of the mould and how well you protect the mould surface from damage while not in use. A well cared for, kiln-washed mould can handle many firings. There's no absolute number. Just inspect the surface for imperfections before each use and fire at the lowest temperature that gets the job done.
Sharol
Re: super easy question about priming a mold
Posted: Wed Dec 11, 2013 2:25 pm
by lorimendenhall
thanks for your reply. I've been doing a few per coating so I guess I'll just keep doing that for now.
Re: super easy question about priming a mold
Posted: Wed Dec 11, 2013 4:14 pm
by Sharol
You should be able to get many firings from a good coating, especially with the shallower moulds.
Re: super easy question about priming a mold
Posted: Wed Dec 11, 2013 8:32 pm
by JestersBaubles
lorimendenhall wrote:dumb question but I've heard differing info... how many uses can you get out of a ceramic mold primed with Hotline Primo Primer? thanks!
Primo is supposedly one-time use. If I valued the mold or the piece, I don't think I would push it, especially if going to fusing temps (which is often when you use Primo).
2 cents,
Dana W.