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

-----

How to do two-layer / two-color powdercoat

May 25, 2009

Dear Sir:

Could you please advise how to applied two different color on metal substrate?One color is yellow and another is clear coat.The products comes out of our curing oven becomes ugly.

Thanks,David

David Wei
sales - Xiamen,Fujian, China

I smiled... I had not heard of powder being ugly. However, sounds like you need to lower the Kv of the gun down to 40-45 Kv for the second coat. Original mfgr. of alloy wheels will use three coats of powder (without any problems) to achieve the desired finish... primer, aluminium and final coat of clear. A photo of the ugly powder may help readers to offer alternative options to overcome this defect in the powder film.

Terry Hickling
Birmingham, United Kingdom
May 27, 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: