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Marty Kremer 10-02-2020 09:37 PM

Rigidizing fiberboard
It's been a long time since I played with ceramic fiberboard for kilnforming (aka slumping) molds. I remember the part about saturating the board with colloidal silica and drying it in a slow vented kiln but I forget if there's a cure step at higher temps before actually using it.

Rosanna Gusler 10-04-2020 09:20 AM

I kiln wash it then fire it to 100f above process temp.

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