No registration, no passwords; no pop-up ads -- just aloha, fun, & authoritative answers.
As an eBay Partner & Amazon Affiliate we receive compensation for qualifying purchases.
Home /
T.O.C.
FAQs
 
Good
Books
Ref.
Libr.
Advertise
Here
Help
Wanted
Current
Q&A's
Search 🔍
the Site
pub  Where the world gathers for
plating, anodizing, & finishing Q&As since 1989





-----

Toxicity of Zinc Phosphate pretreatment




I have recently become concerned about the toxicity of the zinc phosphate bath which is a part of the E-coat line which I am the technician for. I was wondering if anyone could give me a ballpark on what was too much exposure. I hesitate to make it an issue with management because the cost of having the blood analysis is perhaps in their opinion excessive... Naturally I would like to research the issue before I bring it to anyone's attention in the first place. Any info would be greatly appreciated. thanks.

David VanThournout
- Rock Island IL
1999



1999

Hopefully someone will correct me if I am in error, but I am not aware of any suggested or mandated limitations on exposure to zinc phosphate. As was pointed out in another letter here recently, the inorganic compounds in water solution that are used in the finishing industry have such a high vapor pressure that none (essentially) evaporates from the solution and the only real exposure issue would be any powders made airborne during makeup of the zinc phosphate solutions.

However, they may be small quantities of proprietary organic addition agents in the solution, and the best way to check this is in the Material Safety Data Sheet which the supplier must provide and which the employer must make handy.

Ted Mooney, finishing.com
Ted Mooney, P.E.
Striving to live Aloha
finishing.com - Pine Beach, New Jersey




(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:

 
Jobshops
Capital
Equipment
Chemicals &
Consumables
Consult'g, Train'g
& Software


About/Contact  -  Privacy Policy  -  ©1995-2024 finishing.com, Pine Beach, New Jersey, USA  -  about "affil links"