I use Spray Nine concentrate in my parts washer and soak everything for at least a day or so depending on the thickness. After its all scrubbed clean I let it dry and use brake cleaner to hose the small parts down. The large parts I wipe down with paint thinners. Use good ventilation for either. I am fairly new at this but it was recommended to me by a person more up on this. So far my parts have been turning out pretty good. I have been using the refinishers cash paint by Plasticote would good success on my cast parts.
Mark
