Casting pad/silicone seal made from the highest quality silicone sheet. This pad is used to create an airtight seal between the flask and table top and helps ensure the long life of your vacuum casting machine.
Measures 6-1/2" across and 1/8" thick. The hole is 3/4".
This pad can easily withstand continuous service at 500F. Higher temperatures will cause all brands of gaskets to degrade.