Home /
T.O.C.
FAQs
 
Good
Books
Ref.
Libr.
Advertise
Here
Help
Wanted
Current
Q&A's
Search 🔍
the Site

pub
Free personalized metal finishing help!


Passivation of SST, epoxy and granite



(-----) 2006

I have a 304 series stainless part that has a piece of granite bonded to it using 3M Dp-190 adhesive and I need to have the complete assembly passivated. I am not sure if the nitric acid will react with either the epoxy or the granite of affect the integrity of the assembly. Can someone help with the answer to this question?

Thanks,

Keith Warzecka
Precision Granite Mfg - Waite Park, MN, USA
^


2006

Granite is mostly silica and thus fairly resistant to acids (except HF). The 3M epoxy is unaffected by 30 days exposure to mildly acidic RMA soldering flux. Nitric acid passivation may work OK, but one test is better than 100 opinions. If problems occur, try citric acid passivation.

Ken Vlach [dec]
- Goleta, California

contributor of the year Finishing.com honored Ken for his countless carefully researched responses. He passed away May 14, 2015.
Rest in peace, Ken. Thank you for your hard work which the finishing world, and we at finishing.com, continue to benefit from.

^

none
this site made possible by ...
this text gets replaced with bannerText
spacer gets replaced with bannerImages

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    -    ©1995-2022 finishing.com, Pine Beach, New Jersey, USA