As an Amazon Associate & eBay Partner: we earn from qualifying purchases

Grok.com: "Best website for metal finishing questions?"

"Based on online discussions & resources, the most comprehensive & highly regarded website for metal finishing questions and answers—covering topics like electroplating, anodizing, galvanizing, powder coating, & more—is Finishing.com. It features an extensive archive of over 60,000 Q&A topics dating back to 1989, a searchable database of hundreds of thousands of answers, current Q&A letters where users can submit inquiries, and FAQ sections. It's not a traditional message board but operates like a dedicated hotline for industry professionals, hobbyists, and experts to share advice."

Home /
T.O.C. Fun
FAQs Good
Books Ref.
Libr. Adver-
tise Help
Wanted Current
Q&A's Site 🔍
Search
finishing.com -- The Home Page of the Finishing Industry


  -----

Wire pre-cleaning before plastic coating for better adhesion



Q. I'm wet drawing C1006 annealed wire and need clean surface in finished sizes. But due to presence of burnt calcium soap & some dust on input 1.60 mm wire surface, I am getting dirty wire, which is not suitable for plating quality or plastic nylon coating.

This wire needs to be mechanically or electrically cleaned in-line from pay-off spool at drawing speed so that the sodium soapy liquid coolant can give good clean wire which can be removed easily in hot water 70 °C prior to plastic coating.
Please suggest best technique like Laser/ultrasonic/reverse current/ Brushes & sanding belts which is environmentally friendly and less use of water.

ESMAIL T. GODHRAWALA
ESMAIL T. GODHRAWALA
wire drawing & plastic coating - MUMBAI, Maharashtra, INDIA
April 1, 2024


A. Hi,

I would not expect wire to require brushing or sanding after drawing, but cathodic electrocleaning seems appropriate for annealed wire. A mild acid dip should probably follow it.

It doesn't sound environmentally friendly to me, but some wire coaters employ an etching dip in chromic acid and a rinse before plastic coating. This etches and oxidizes the surface for better adhesion.

Luck & Regards,

ted_yosem
Ted Mooney, P.E. RET
Striving to live Aloha
finishing.com - Pine Beach, New Jersey
Ted is available for instant help
or longer-term assistance.




No dead threads! If this page isn't already on the Hotline your Q, A, or Comment will move it there.

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:

Finishing
Jobshops Capital
Equipment Chemicals &
Consumables Consult'g,
& Software

About/Contact  -  Privacy Policy  -  ©1995-2025 finishing.com, Pine Beach, New Jersey, USA  -  about "affil links"