Biglou13 Posted June 30, 2014 Report Share Posted June 30, 2014 Making the Campana kiln wash. It calls for darvan. Can I sub sodium silicate and is it a 1:1 ratio? 2500g EPK 2500g Glomax 5000g Alumina Hydrate 4250 ml Water 25g Darvan 7 Link to comment Share on other sites More sharing options...
Mark C. Posted June 30, 2014 Report Share Posted June 30, 2014 I do not think its 1 to 1-my guess is its more sodium silicate?Darvan is just a better product here some formulas for slip from Alfreds off the web you can compare these to yours Reeves Porcelain Cone 7-10 Grolleg 40 Kona F-4 34 Flint 26 Water Darvan #7 35% 0.35% Spleth Porcelain Cone 8-10 Grolleg Velvacast Ball Clay 30 12 8 Custer 18 Flint Pyrax 20 12 Water Darvan #7 40% 0.35% Hope this helps Mark Link to comment Share on other sites More sharing options...
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