-- The Home Page of the Finishing Industry
A website for Serious Education, promoting Aloha,
& the most FUN smiley you can have in metal finishing.
    no popups, no spam
on this site
current topics
topic 1604

Electroless Pb deposition



I am interested in any technique and/or chemistry that would allow us to deposit a thin lead(Pb) coating in a 60 to 1 high aspect ratio structure.

Specifically we are attempting to deposit this lead coating on the sidewalls of a six micron diameter opening three hundred microns deep. This channel is opened at both ends. We have successfully deposited nickel onto the sidewalls but are experiencing some difficulties in the lead coating. We have attempted traditional electroplating methods inclusive of pulse plating at high frequencies. Are there any electroless formulations for lead(Pb) chemistries?

Any help in direction or methods would be appreciated.

Many thanks,

bob boerstler

Robert Boerstler
- Oxford, Ct. 06478


Since it is a through-hole, the practicle aspect ratio is about 25 to 30 I assume. I can think of 3 scenarios without consideration to practicality: 1) make a bigger hole, and fill it with molten lead using vacuum suction, then drill a smaller hole; 2) go to Jet Process Corporation in New Jersey, they use a vapor jet that migh be suitable; 3) new vapor-dep process development, I have one in mind for a while. We could talk when you are ready.


Mandar Sunthankar
- Fort Collins, Colorado


Dear Mr Boestler

Although I have nothing at this time to contribute to the solution of your problem I have an interest in the subject about which you are inquiring, from a different aspect than yours. I am attempting to coat aluminum foam with lead. I accomp lished this by dipping the articles in molten lead over a previously deposited Zincate coating. The results are far from satisfactory. Perhaps you would be able to guide me to sources of information which have resulted from your inquiry that would enlighten me Thank you Sincerely Yours

Frank C. Farrell
- Las Vegas Nevada

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 Comment to THIS thread START a NEW threadView CURRENT 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

©1995-2018, Inc., Pine Beach, NJ   -   About   -  Privacy Policy
How Google uses data when you visit this site.