For your complex, high-value iron castings, Gilsonite® performs like no other carbon additive. Gilsonite’s naturally superior properties mean high-quality castings with better finish and fewer imperfections.
- Three times as much gas generated vs. sea coal for better mold release
- High lustrous carbon for better finish
- Reductive atmosphere for less reaction between mold and casting for fewer imperfections
- Gilsonite® Foundry Grade