Protection of CI in molten aluminum

[RLJ]

I am looking for a material coating which can be applied to cast iron that will protect the cast iron when submerged into a molten aluminum bath. The coating would have to withstand 1400F temperatures, moderate abrasion, and expand similar to the cast iron. I would prefer to keep the coating thickness as thin as possible for wieght concerns.

Thanks in advance,

RLJ s-)

 

[gregsippel]

Hi. There is a company here in Oak Ridge that makes very high temperature coatings that are used for the very purpose you describe. Their name is ZYP Coatings, Oak Ridge, Tennessee. I think you can apply it with a simple paint brush, or with a cheap paint sprayer from a hardware store.