Authoritative Answers, Fun, & Aloha -- no cost, no passwords, no popups
(as an eBay Partner & Amazon Affiliate we earn from qualifying purchases)

Home /
T.O.C.
Fun
FAQs
Good
Books
Ref.
Libr.
Adver-
tise
Help
Wanted
Current
Q&A's
Site 🔍
Search
pub     mobile?
Metal finishing Q&As since 1989

-----

Staining on anodized aluminum window frames


Q. I am an Architect in Pennsylvania. A recently completed project is having extensive issues with discoloration of the dark bronze anodized window frames. Of course everyone involved in the process says its not their fault. The staining varies from just a darkening of the metal to a brilliant blue. I believe that it is probably not a metal finishing issues but a contamination from other materials. The staining streaks from the stainless steel flashing above but is also very strong at the sill, where it may be collecting as it runs down the window. The windows are surrounded by silicone sealant and an acrylic stucco system. Also the stainless steel flashing is sealed with an asphalt based tape behind the stucco system.

52028-1

52028-2

Bob Flagg
Architect - Philadelphia, Pennsylvania, USA
April 30, 2009


Q. Was the cause of this staining ever identified?

Scott MacIntyre
- Halifax, NS, Canada
September 24, 2010


A. Hi, I went through a major remodel and had the same issue with my windows. The rainbow staining went away when my contractor rubbed WD40 [this product on eBay or Amazon affil links] on the frames. Give that a try!

BP Pimentel
- Encinitas, California
March 9, 2024




(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:

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


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