PCB tinning solution powder wanted

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Charles L - 28 Oct 2004 16:13 GMT

Does anyone know whereabouts in Melbourne I can buy tinning solution powder
for PCB's?

Charles L

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Wing Fong Wong - 28 Oct 2004 16:24 GMT

> Does anyone know whereabouts in Melbourne I can buy tinning solution powder
> for PCB's?
>
> Charles L

RS sells the stuff and have trade counters everywhere, buts it not cheap
and the quantities are quite large. Its in the kilo range I think.

Signature

Wing Wong.
Webpage: http://wing.ucc.asn.au

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Andy - 30 Oct 2004 11:07 GMT

> Does anyone know whereabouts in Melbourne I can buy tinning solution powder
> for PCB's?
>
> Charles L

Hello,

Not in Melbourne but cheap, so probably worth the freight:

http://www.computronics.com.au/kinsten/

I have had limited success with this type of immersion tin plating. It
does make the copper traces all nice and silver-shiny but it can be an
absolute bastard to get the solder to flow onto it. I have found it
gets worse with time. I still spray the pcb with a solder-thru lacquer
if it is going to sit around for any length of time.

Andy

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Charles L - 30 Oct 2004 16:40 GMT

> > Does anyone know whereabouts in Melbourne I can buy tinning solution powder
> > for PCB's?
[quoted text clipped - 12 lines]
> gets worse with time. I still spray the pcb with a solder-thru lacquer
> if it is going to sit around for any length of time.

Having taken your comments on board I think solder-thru lacquer might be the
go. Do you know where I can buy it?

Charles L

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budgie - 31 Oct 2004 01:56 GMT

>> Does anyone know whereabouts in Melbourne I can buy tinning solution powder
>> for PCB's?
[quoted text clipped - 10 lines]
>does make the copper traces all nice and silver-shiny but it can be an
>absolute bastard to get the solder to flow onto it.

Yep

> I have found it gets worse with time.

Agree

> I still spray the pcb with a solder-thru lacquer
>if it is going to sit around for any length of time.

and it is still a bastard to get solder to flow onto. Often by the time the
solder gets to "take", the heat has caused some of the plating to migrate,
posioning the iron and sometimes leaving small bare copper patches adjacent to
the soldered area.

I wouldn't bother - just apply solder-through to the bare shiny copper.

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Electronics Forum / Electronics / October 2004

PCB tinning solution powder wanted