ceramic molds - WarmGlass.com

ceramic molds

This is the main board for discussing general techniques, tools, and processes for fusing, slumping, and related kiln-forming activities.

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ceramic molds

Postby BobbieMatus » Mon Feb 13, 2017 2:08 pm

Is there a way to clean off the accumulated kiln wash on ceramic molds. Every time I slump pieces of kiln wash get embedded on my piece.

Brad Walker
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Re: ceramic molds

Postby Brad Walker » Mon Feb 13, 2017 2:21 pm

User wet/dry sandpaper, fine.

When you reapply, you don't need that many coats. Two or three will work fine.

Kevin Midgley
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Re: ceramic molds

Postby Kevin Midgley » Mon Feb 13, 2017 3:04 pm

drywall sanding mesh

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Re: ceramic molds

Postby Sharol » Mon Feb 13, 2017 3:21 pm

Yes, drywall sanding mesh works best. It's also what I use to clean my shelves. Works great. Wear gloves though. It's rough on your hands.

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Re: ceramic molds

Postby seachange » Mon Feb 13, 2017 9:37 pm


To clean shelves: I place them on a couple of pages of newspaper. Spray the surface with water to keep the dust down, scrape with a paint scraper. It forms small flakes that are collected into the newspaper. If needed I wash any left over rests under a tap (outside).

To clean molds: I wash them with a plastic scrubby in a bucket of water. Rinse and leave to dry, then reapply separator.

Please consider I am doing this outside. Wouldn't be good for the plumbing.

Best regards, seachange

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Re: ceramic molds

Postby BobbieMatus » Tue Feb 14, 2017 12:40 pm

thanks everyone

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Re: ceramic molds

Postby JestersBaubles » Wed Feb 15, 2017 3:33 pm

If kiln wash gets embedded in your glass during a slump, then I think you are slumping at too high of a temperature.

2 cents,
Dana W.

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Re: ceramic molds

Postby DonMcClennen » Wed Feb 15, 2017 5:45 pm

I coated my moulds once when they were new and never again!... some I've been using 20yrs. never had to recoat. I agree with the last post your top slumping temp should be low enough that melting against mold should not be happening!!
"The Glassman"

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