Thank you very much for your valuable suggestion! We will solve it as soon as possible!

Surface Finish

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PCB Surface Finishes include HASL, OSP, ENIG, Immersion Tin, Immersion Silver, Gold – Hard Gold…Protect copper from oxidation and help assembly.

Community > Groups > Surface Finish > mixed lead free and non lead free production
mixed lead free and non lead free production
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Ricardo Medda

Hi We are in the process of developing a lead free product to be used in a non lead free selective soldering machine, i do have concern in these, and hope you guy can share your experienced expert opinion:
1. What does it take to convert to lead free in the flux - heat - solder process??
2. Can we reuse the same machine? My point here is that the non lead free process has already coated the machine interior ( exhaust, internal flow ) with leaded component, and by conversion to lead free are we containminating the lead free product from the previous production?
Statement: This post is only the personal view of the author and does not represent the opinions of

Chicken Hacker

Good resource for new beginners.


I am going to keep checking for new writings.


You did a great job. Really appreciate your content.

Great help to my new project.

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