Everyone who describes how to make slip fails to answer this burning question.
Ceramic slip making.
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Standard ceramic supply s ceramic slip is a superior premixed ready to cast talc based nontoxic low fire white earthenware ceramic casting slip manufactured by standard ceramic supply and stocked and sold by dogwood ceramics for use by schools production studios and ceramic hobbyists.
Phoenician plate with red slip now wearing away 7th century bc.
A gallon of good ceramic slip should weigh 14 5 pounds plus a smidge.
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Plastic containers with screw on lids that come in packs of 2 from the dollar tree with a screw on lid you can get a tighter seal than you can with snap on lids which means your slip will still be usable the next time you need to use it.
Ceramic mold making opens up endless potential for creative expression.
Chinese cizhou ware vase with cut glaze decoration.
Not only does ceramic mold making enable you to repeat a form over and over again it also makes individual forms lose their preciousness which frees you up to experiment more.
This can either be scraps left over from the pottery you have been making.
And it should have a gravity ratio of 1 75 to achieve this you should have a hydrometer and a scale.
That seems a lot less trouble.
Why not start with moist clay.
First you need to collect some scraps of bone dry clay.
Or you can easily make it by cutting of some thin slabs from your clay block.
In this post paul andrew wandless shows you how to make casting slip from a clay body normally used for throwing or handbuilding.
Miletus ware showing a red body covered by white slip then painted in blue c.
For storing slip i like the 16 oz.
Standard ceramic slip sold by dogwood ceramic supply.