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