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

HomeFAQsBooksHelpWantedAdvertiseForum
topic 5778

How to Increase Zinc Passivation Life


(2000)

Dear readers, I am in to surface finishing business, and at present in a mess, kindly help me. I want to give blue -bright finish to the zinc plated components; but at the same time (with the same appearance )I want the enhanced life in salt spray resistance.( similarly black passivated components should also withstand more no of hrs in s.s.test)the process should be devoid of lacquer. Please reply me as soon as possible. Thnx.

Vrishali Sumant Dalvi.
- Mumbai, Maharashtra,india


(2000)

Vrishali, at this time I do not feel you can obtain more than maybe 48 hrs. salt spray ( ASTM B117 [link by ed. to spec at TechStreet] ). No matter what thickness zinc.

Bill Hemp
tech svc. w/ chemical supplier - Grand Rapids, Michigan


(2000)

Dear Vrishali, SS hours can be increased only if you use water based lacquers available through GW or other suppliers. Alternatively think about alloy plating. regards.

Khozem Vahaanwala
Khozem Vahaanwala
Saify Ind supporting advertiser
Bangalore, Karnataka, India

saify logo


(2003)

Dear Vrishali, for enhancing SS life for Blue passivation,you can use trivalent chrome passivation with Top coat.Which will enhance your salt spray life upto 72 hrs.

Regards,

Sanjaykumar Kulkarni
Electrical conduit fittings - Pune, Maharashtra



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 This Week's HOT 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


©1995-2017 finishing.com     -    Privacy Policy
How Google uses data when you visit this site.