Thermal Expansion

Investment Casting

The Investment Casting process requires consistent, precise particle sizing for the building of ceramic shells. Christy Minerals STKO® Alumino-Silicate grains and flours deliver the precision performance needed for today’s Investment Caster. STKO® Alumino-Silicate contains less cristobalite and does not exhibit a high expansion at autoclave temperatures minimizing autoclave cracking. Christy Minerals produces a complete line of stucco sizes and flours milled in our ceramic lined ball mills.

STKO® stuccos are constantly dedusted throughout the screening process making them virtually dust free. Christy Minerals works with customers to determine proper size for coarse to fine grains.

When your application demands superior ceramic refractory mold media, STKO® grains and flours deliver the precision performance you need.

Please contact us to find the local distributor of Christy Minerals STKO® Alumino-Silicate grains and flours.


Product Technical Data