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- High Grade Silicone and Graphite High Temperature gaskets.
- Gaskets are used together to provide the best seal during vacuum casting to seal perforated flask ring and casting chamber.
- The Silicon acts as a sealing layer while the graphite placed on top of the silicone, protecting and prolonging the silicone seal from the high flask temperature.
- The combination of the 2 types of gaskets provide a very good seal, allowing the vacuum to fully pull the molten metal into the flask.
- These gaskets are die cut, have a thickness of 1/8" for the Silicone and 1/16" for the Graphite. Gaskets come in various diameters to work with individual flask OD sizes, visit our store.
SPECIFICATIONS: JETS Product # 0304-240+15240
- Material: High Temperature Graphite & High Grade Silicone
- Flask Diameter: 4" - 101.6mm
- Gasket Outside Diameter: 5-5/8" - 143mm
- Gasket Inside Diameter: 4-5/16" - 110mm
- Gasket Face Width: 21/32" - 16.75mm
- Thickness: Graphite 1/16" - 1/8" Silicone
Customer
Reviewed in the United States on July 29, 2024
Purchased this for casting copper since my flasks are ~1200F, getting enormously better seal life. Used to get ~3 casts before my red silicone seals degraded, with this I'm expecting ~5-6. Red seal I received with this graphite kit has survived 4 so far and while its certainly showing some damage its nothing like my old one before I got the graphite ring.Edit: I've completed 10 castings with this graphite ring and the same silicone seal and its still going strong. All 10 flasks were ~1200F.
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