ronpriest2000 wrote:
>
> I have used Chemical tinning in the past
> I produced hundreds of pcbs this way
> whilst working as a Technician at Coventry University
> Stannous tinning salts are expensive > £50
> here in the UK for 500g
> I am now retired so £50 + on a hobby is a no no
That's why i thought trying the tin sulfate from inexpensive pure tin
bars (6eur per 250gram bar on the local hardware store). Electrolise
them in a sulfuric solution should generate the tin sulfate. If i
remember correctly the thiourea is 10eur per Kg, so with 20eur one
could have enough to make 20 litres off the stuff, enough for more than
200 eurocard sized boards.
> So I seek an alternative method for tinning
> the small pcbs that i make for my Radio Hobby
> I have read about these tinning adapters but never acually
> seen a pic of one.
> at the moment I just use flux and a bit of solder wick
> but seeing the correct tool for the job would be helpfull
Where i used the tinning solution, there was also a roller tinning
machine. I can be young, but i also like to have machines and use them.
But this one is a bad results energy black hole with really much smoke.
With some knowledge and gloves immersion tin, is a faster, easier,
better results and cheaper way to do it. Thiourea is a urea like
smelling thing with cancerous effects (not confirmed but more likely)
with gloves is safer than that smoke. And with the roller tinning you
can not do plated hole pcb's.