Elevate your jewelry casting game with this 4" Silicone Rubber Casting Gasket.
Its perforated design allows for efficient vacuum sealing, ensuring a flawless casting process.
Crafted from high-quality silicone rubber, this gasket is durable and reusable, making it an essential tool for any jewelry maker.
With its precise dimensions, it fits seamlessly into standard flasks, providing a secure seal for your precious metal or resin castings.
Unlock your creativity and produce stunning pieces with this indispensable casting accessory.

SILICONE RUBBER GASKET
GASKET FOR VACUUM JEWELRY CASTING
GASKET FOR 4" PERFORATED FLASKS
VACUUM SEAL FOR FLASK AND ADAPTER

High Grade Silicone gaskets are used during vacuum casting to seal perforated flask ring and casting chamber.
The Silicon acts as a sealing layer between the hot flask and the casting chamber flange adapter Gasket provides a good seal, allowing the vacuum to fully pull the molten metal into the flask.
These gaskets are Press cut, have a thickness of 1/8" and come in various diameters to work with individual flask OD sizes.
NOTE: Gasket ID is slightly larger than 4" to easily fit perforated flask into the casting chamber.
The outside diameter has a wide 5/8" surface area to assure a good seal.

SPECIFICATIONS: JETS Product # 0304-240-JTS
- Material: Silicon
- Flask Diameter: 4" - 101mm
- Outside Diameter: 5-5/8" - 143mm
- Inside Diameter: 4-5/16" - 109mm
- Gasket Width: 21/32" - 16.7mm
- Thickness: 1/8"