The length of time parts need to be in washing stage varies, but typically depending on the level of soil it can be 3-5 minutes in solution, However, I’ve seen some parts require upwards of 20 minutes. Keep in mind, extra time spent in the wash or rinse can save significant time should your upstream process require bead blasting. As for temperature, 130-165°F 54-71°C. Concentrations for spray applications 5-8%, immersion 10-15%.