Agree to Disagree
Is leaded solder paste OK in K-12?
Our position, and the 'it works better' counterpoint.
Our position
Leaded solder paste (Sn63/Pb37) reflows at lower temperatures and makes cleaner joints. It also produces lead-laden fumes at higher quantities than wire solder. For a K-12 makerspace, stick with lead-free no-clean paste. Lead work stays in adult-only environments or college labs.
Other voices
Reputable sources worth reading before you decide. Labels reflect our honest read of each source's general stance, not direct quotes.
RoHS / EU lead-free directive
Broadly agreesIndustry has moved to lead-free for consumer electronics. Teaching kids on leaded paste is obsolete.
Why trust it: Regulatory shift.
Vintage-repair / specialty use
Pushes backFor vintage electronics repair, leaded paste is sometimes needed for compatibility. Not a K-12 use case.
Why trust it: Adult-specialty context.
A note on honesty: We have no affiliate arrangement with any brand or publication linked here. Labels reflect our honest read of each source's general stance as of this writing; they are not quotes. Click through and form your own view.