Thread: How to clean rough ceramic
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Rob Morley Rob Morley is offline
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Default How to clean rough ceramic
On Sun, 3 Mar 2019 21:42:26 +0000
(D.M. Procida) wrote:

I have some ceramic electrical insulation, that is a bit discoloured
and I would like to clean up.

It has a rough unglazed surface.

What do you suggest?

Brick acid?

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