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Showing results for tags 'sodium silicate'.
Hi all, Second time posting here and I’m hoping you can help! Hopefully this is the right place to be for a troubleshooting question like this. Im currently working from a recipe for Val Cushing’s Cone 6 Porcelain Slip. grolleg: 15% tile 6: 15% Epk: 3% om4: 10% flint: 25% neph sy: 30% gerstley borate: 2% —————————— Sodium silicate: .0028% calgon: .0005% When I mixed this before, as now, I subbed the deflocculants with Darvan. I mixed it successfully then, but I’m currently have difficulty. I know that darvan generally subs
I recently read that you can use sodium silicate as a post-firing sealant for raw clay, in the same way that it's used to seal concrete, as "water glass". I use cone 6 porcelain, and I love leaving the bare clay as a design technique, but there's still a good chance that the exposed clay will stain with use - esp coffee and tea. So I am going to try using it to protect against future staining after use, but I wonder if I put it on before the pots go into a luster firing (cone 018), will the sodium silicate molecules bond more completely with the clay body? Will it eventually wear away with