![10L #540 CONE 6 BLACK CASTING SLIP](http://psh.ca/cdn/shop/products/C540P_2_{width}x.jpg?v=1584022605)
PSH 540i slip is vitreous stoneware which fires to a deep brown-black at cone 6. When bisquing, keep items apart to avoid discolouration. Not recommended for
microwave ware; clay becomes hot.
PSH slip is packaged in sturdy plastic pails with a plastic bag liner. There is a $9.00 refundable deposit on pails. Also available packaged in boxes, minimum 20. The charge per box is $3.00 (non-refundable).