finishing.com -- The Home Page of the Finishing Industry
A website for Serious Education, promoting Aloha,
& the most FUN smiley you can have in metal finishing

HomeFAQsSuggested
Books
Help
Wanteds
Advertise
on this site
FORUM
current topics
topic 60727

Chromate Conversion Coating Post Packaging


April 3, 2018

Packaging Materials
from Abe Books

or

Q. Thank You to all the contributors.

I have searched the site looking for a reference to what is the correct way to post handle or ship chromate conversion coated aluminum parts.

When you look at:

ASTM B449-93 [link by ed. to spec at TechStreet] (2010) Standard Specification for Chromates on Aluminum

- 7.0 Coating Requirements
- 7.1 General - Chromate conversion coatings harden with age by gradual dehydration. They should, therefore, be handled
carefully for the first 24 h after treatment, and any tests (including corrosion tests) shall be deferred until the expirationof that period.

There is no reference to packaging.

Do we package chromated parts in plastic bags?
Do we wrap in acid free paper?
Do we wrap in newspaper?

I am curious on the answer and I believe I know the answer but there is no information jumping out of the web search.

Kurt

Kurt Krueger
- Lexington, Massachusetts


April 9, 2018

A. Hi Kurt,
Once you've given them time to set up for 24 hr or so, either plastic or newsprint paper are totally acceptable. Acid free paper would be lovely, but IMHO it's overkill. Obviously you don't want newsprint with ink on it (save it for your fish n chips lol).
We even wrap our Salt Spray specimens in newsprint for shipping, after a 24 hr holding period, and everything is just ducky.

rachel_mackintosh
Rachel Mackintosh
Plating Solutions Control Specialist / Industrial Metals Waste Treatment - Brattleboro, Vermont



This public forum has 60,000 threads. If you have a question in mind which seems off topic to this thread, you might prefer to Search the Site

ADD a Q or A to THIS thread START a NEW THREADView CURRENT TOPICS

Disclaimer: It's not possible to 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 may be deliberately harmful.

  If you need a product/service, please check these Directories:

JobshopsCapital Equip. & Install'nChemicals & Consumables Consult'g, Train'g, SoftwareEnvironmental ComplianceTesting Svcs. & Devices


©1995-2018 finishing.com, Inc., Pine Beach, NJ   -   About finishing.com   -  Privacy Policy
How Google uses data when you visit this site.