No passwords, No popups, No cost, No AI:
we earn from 'affiliate link' purchases, making the site possible

Sound technical content, curated with aloha by
Ted Mooney, P.E. RET
Pine Beach, NJ

finishing.com -- The Home Page of the Finishing Industry

  The authoritative public forum
  for Metal Finishing since 1989

-----

Sludge from Pretreatment Process in Aluminum Car Body

2001

I am interested in the pretreatment method at the paint process for car body build by aluminum and steel. Due to the need for simultaneous pretreatment at the same line, Zinc phosphate are usually introduced and high volume of fluorine are used for edging the aluminum.

So I have concerns about the sludge including fluorine. If the production volume of aluminum body will be increased in the near future,

1)I would like to know the current environmental regulation for fluorine and how it is going.
2)I would like to the recycle process for the sludge.

Hiroyuki Kishi
- Atsugi, Kanagawa, Japan

(No "dead threads" here! If this page isn't currently on the Hotline your Q, A, or Comment will restore it)

Q, A, or Comment on THIS thread -or- Start a NEW Thread

Disclaimer: It's not possible to fully diagnose a finishing problem or the hazards of an operation via these pages. All information presented is for general reference and does not represent a professional opinion nor the policy of an author's employer. The internet is largely anonymous & unvetted; some names may be fictitious and some recommendations might be harmful.

If you are seeking a product or service related to metal finishing, please check these Directories: