No cost, no registration, no passwords -- just aloha, fun & authoritative answers
(as an eBay Partner & Amazon Affiliate we earn from qualifying purchases)

Where the
world gathers for metal finishing
Q&As since 1989

-----

Polyurethane Painting Procedure

"Polyurethanes"

on AbeBooks

or Amazon

(affil links)

Q. Sir,
Can you guide me regarding the painting procedure for polyurethane coating on aluminum extruded section used in industrial valves.
1) Is there any air drying type of paint.
2) Does this coating give any nail hardness feature.
3) Is baking the painted component in the oven necessary.
Regards,

Ashwin K [last name deleted for privacy by Editor]
manufacturing pneumatic valve bodies and their sub assemblies - Kolahpur, Maharashtra, India
2006

Q. Dear sir

Please give the details polyurethane painting procedure.

thanking you

your faithfully

M.Karthikeyan
engineering services - Chennai, Tamilnadu, India
April 11, 2008

A. Hi, gentlemen. Polyurethane is simply the name of a polymer/plastic. It even includes thermoplastics as well as thermosets, and can be applied as powders or paints. There are also 100% polyurethanes, which means coatings that involve no solvents, and these are generally applied as two liquids which react after application.

The answers to Ashwin's questions are Yes, Yes, and No. But your questions involve a very broad range of highly diverse technologies and can't be answered in a few paragraphs.

You can start at www.polyurethane.org, and if you determine that your interest is limited to 100% polyurethanes, you can try www.geocities.com/pucoating/faq1.htm

Luck and Regards,

Ted Mooney, P.E.
Striving to live Aloha
finishing.com - Pine Beach, New Jersey

(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: