Quote:
Originally Posted by neallewis
Get some old school leaded solder. New lead free solder is horrible to use, and requires a super hot iron, or give up. It's a pig to work with with my 480degC solder station, but leaded solder is perfect at 300degC.
Search ebay for "lead solder -free" and you'll find lots. 60/40 tin/lead flux core solder.
Flux paste is also a must for cleanign your iron tip and helping to tin the wires and contacts. remove residue with motor spray afterwards.
you can get good flux paste (LA-CO) from a plumbers merchants.
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Solder, whether lead-free or otherwise is flux cored as you have stated so why use flux paste?
Lead free solder is not horrible to use and makes perfect joints with an iron tip temperature below 380 deg C - Leaded solder is horrible to use with toxic fumes and lead covered hands just by touching it.
I was sceptical at first, but after trying a few types at work, we have found a perfect lead-free solder that I use on all my RC cars and have had no joint failures.