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 10257

Pre-treatment of iron sheet before painting


 

My company mfr. ceiling fan blades made of aluminium and cold rolled sheets of iron.To prepare the surface for painting we chemically treat it. Particularly in crc sheets we face lot of difficulties as the surface turns brown after treatment and the paint peels off after some time. We tried so many methods of treating it like washing it with thinner, degreasing it with an alkali and phosphating it but failed.

Could you please post me a method to do it exactly as my products are exported.

Akash gupta
Dipti electricals - Delhi, India


 

Don't try to treat the aluminum and steel the same way if it's not working. Chromate conversion coat the aluminum, and iron phosphate the steel.

Ted Mooney, finishing.com Teds signature
Ted Mooney, P.E. RET
finishing.com
Pine Beach, New Jersey



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.