Clay

PSH slip is packaged in sturdy plastic pails with a plastic bag liner. 

A slippery smooth general purpose terra-cotta. Colour deepens from cone 06-2. Good for Majolica. Craze resistance improves with higher (04-03) bisque firing. High iron content will cause empty pots...

Plastic throwing clay with a fireclay tooth that fires to a warm buff with speckle at cone 6. Risk of bloating beyond that.LN:

A smooth high-iron stoneware firing to a deep rich red-brown at cone 6. High iron content will cause empty pots to warm noticeably after microwaving. ^

A smooth general-purpose white stoneware. At cone 6 it fires creamy white rather than neutral white. ^