Blasting materials such as ARMEX blast media are green, and safe, ways to clean engine parts. Baking soda won’t etch the surface of the parts being cleaned. It is very effective on aluminum, and can remove dirt, grease, oil and even paint.
Knowing why you would use a wet machine over dry and knowing when siphon is better than direct pressure or visa-versa is required to make sure any custom engine builder gets the right machine the first time.
Two of the most difficult cleaning jobs are fire and mold remediation, where non-destructive cleaning is critical. Soda blasting can dramatically reduce fire and mold remediation labor costs while maintaining the original surface of the substrates.