There is no stock ANSWER for this question. Many factors go into deciding which cleaner is the best for your application. Base metal of the work piece, soil being removed, bath temperature, CONTACT time, oil removal capabilities, environmental considerations, ETC. must be taken into account when deciding. The bottom line is that you need to get your parts clean, SAFELY, so the steps following in the pretreatment process will function properly. Check with your pretreatment supplier to determine your best course of action.

There is no stock answer for this question. Many factors go into deciding which cleaner is the best for your application. Base metal of the work piece, soil being removed, bath temperature, contact time, oil removal capabilities, environmental considerations, etc. must be taken into account when deciding. The bottom line is that you need to get your parts clean, safely, so the steps following in the pretreatment process will function properly. Check with your pretreatment supplier to determine your best course of action.