I have been playing around with a small heat treat oven I recently purchased, thinking it would add useful capabilities to my shop. To prevent scale formation and avoid surface pitting and dimensional changes, what is the best way to protect the parts? I know that stainless steel foils (which are very expensive) are used to wrap parts, and some anti scaling compounds are available. Any other methods? I am looking for answers before spending any money. Thanks.

Perk in Cincinnati