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

-----

Difference between painting, powder coating and hot dip galvanizing

November 9, 2009

Dear Sir,

what is the difference between painting , powder coating and hot dip galvanizing ?

regards

Gan Thakar
selling HDG and painted products - Mumbai, Maharastra, India

Hi, Gan. In painting, the pigments and the protective organics are dissolved in a solvent, whether oil or water, which usually evaporates or sometimes catalyzes, and leaves the coating on the articles. I am confident that you have heard of paint before.

In powder coating, the article is usually sprayed with plastic in a powder form, but sometimes dipped into a fluidized bed of the powdered plastic, and the part is then heated to cause the plastic to melt, flow over the surface, and fuse.

In hot dip galvanizing the work is dipped into a vat of molten zinc, which then cools, leaving a coating of zinc on the object.

Regards,

Ted Mooney, P.E.
Striving to live Aloha
finishing.com - Pine Beach, New Jersey
November 10, 2009

(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: