Cleaning slumping molds

[debz48]

I have several slumping molds that have not been used for a couple of years.  The old kiln wash has been removed, however in putting new kiln wash on there are spots that will not take the kiln wash.  Anyone got any ideas?  Is there a way to further clean them with some type of solution?

Appreciate your input.

[wordana]

Lightly sand. That should get whatever is on the surface off.

Dana W.

Jester’s Baubles Fused Glass Designs

http://www.jestersbaubles.com

[debz48]

Thank you for your response.  We have been using the fine 3M pads to get it off but nothing seems to be working.  Can they be washed with anything?

Regards,

Debbie

[Stephen Richard]

On a number of moulds there is often a spot that does not seem to want to take the kiln wash. This is a hard spot where the liquid slip was hitting the mould. I have found that covering all the mould evenly will give enough coverage that (contrary to appearances) the glass does not stick at normal slumping temperatures, I.e. Not above 677C

Stephen Richard

blogs at: http://www.verrier-glass.blogspot.com/ and  http://www.glasstips.blogspot.com/

[debz48]

Thank you – Will try again.  Do you think boiling the mould in water might get any impurities out of the mould?

Regards,

Debbie

[Stephen Richard]

No

they are not impurities, just a hard spot

Stephen Richard

blogs at: http://www.verrier-glass.blogspot.com/ and  http://www.glasstips.blogspot.com/

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