Arbe 1/4" Red Silicone Gaskets
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Arbe 1/4" Red Silicone Gaskets have a 3-1/2" inner diameter and are used with flasks to create an air tight seal when vacuum casting.
It is recommended that silicone gaskets are used on top of the more heat resistant Klingerit gaskets to extend their life and prevent them from burning out quickly.