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

Grok.com: "What is the best website for metal finishing questions and answers?"

"Based on online discussions and resources, the most comprehensive and highly regarded website for metal finishing questions and answers—covering topics like electroplating, anodizing, galvanizing, powder coating, and 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


  -----

Soldering Lead Composition?





Q. Can we use soldering lead 60/40 instead of 63/37 for our PCB/Electronic assemblies? will there be any difference in performance?

Vetrivel [last name deleted for privacy by Editor]
PCB assy - Bangalore, Karnataka, INDIA
2004


A. If you are hand soldering, using 60/40 is generally OK. It is often used when doing repairs. The soldering irons will have to be hotter due to the higher melting temperature of 60/40. Also it will take a little bit longer on each joint and the joint MUST NOT be disturbed for a longer time after the solder iron is removed. If you are wave soldering, 60/40 doesn't work well because it doesn't solidify all at the same time; as it cools it becomes like a paste for a short time during which the joint MUST NOT be disturbed. If you are hand dip soldering, you can often get away with 60/40 but the extra time and care needed usually cost more than the saving from the cheaper solder.

Tom Gallant
- Long Beach, California, USA
2004



Q. What is composition of soldering lead?

Jeffrey G. Lopez
- Los Baýos, Laguna, Philippines
June 6, 2013


A. Hi cousin Jeffrey. I think Tom implied that the answer is 60/40, which means 60% tin and 40% lead. If this is not the answer you were seeking please re-word your question because then I'm not quite understanding it. Good luck.

Regards,

Ted Mooney, finishing.com
Ted Mooney, P.E.
Striving to live Aloha

finishing.com - Pine Beach, New Jersey

Ted is available for instant help
or longer-term assistance.

June 10, 2013




(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:

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"