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topic 6183

Controlling bacteria in e-coat post rinse stages


I am looking for any information regarding bacteria control in e-coat systems. I am more concerned with the post rinse stages (2 permeate, 2 DI) than the e-coat bath itself. If anyone has any information including any websites, resources, or other sources, I would very much appreciate it.

Thank you.

Greg Eccleston
- findlay, Ohio , usa


You can use UV to get rid of the bacteria. There are also some additives for this application, ask your paint supplier about them.

sara michaeli
sara michaeli signature 
Sara Michaeli
chemical process supplier
Tel-Aviv, Israel


We have used bactericide along with a biosurfactant mixed with acid to help strip off old layers of bacteria. We run routine Bioscans to track growth.We add the bactericide in trace amounts during the week to control regrowth.

Matt Hartl
- Bismarck ND

December 10, 2008

I have had some success in draining the water rinses, and allowing them to dry out on the weekends (assuming that you are down for at least 2 days). This slows down the growth without biocide usage.

Ed Rimeikis
- London, Ontario, Canada

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