Whip Mix - Ring Liner Roll Cellulose 1-1/8 X60
(Discount shown during checkout)
This material has the necessary cushioning and the correct water absorption, which enables the investment to control setting expansion. During burnout it chars to a black ash which crumbles easily when the mold is pushed out of the ring.
Liners should be 3mm (1/8″) short of each end of the casting ring.