Hi All!

On Fri, 25 Apr 2003, Mike Hord wrote:

> Last item:  use a piece of steel wool to burnish the copper on the board
> before soldering or tinning.  The difference between the behavior of
> solder on a burnished board and and an unburnished one is night and day.
> I know a few guys who will actually do all the leads on their
> components, but I think that's a little over kill.

Update: Scotch Brite, not steel wool. A harder metal will eat the copper,
quite quickly too I'd bet, but the plastic will only polish it.

You are absolutely correct though about the cleaning thing though. Copper
oxidizes as soon at it hits the air. Fortunately it's not too thick for a
while.

I don't think cleaning component leads is too silly necessarily. Depends
on why they're doing it such as to minimise 'hot time.' Granted I've never
even -heard- of the practice in 40 yrs of soldering, but to each their
own. :)

TQOTD Trivia Question Of The Day

What is the color of pure raw clean unoxidized copper?

If you don't know scroll down for answer.



























































Pink.

Have a :) day!

jb

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jim barchuk
jb@jbarchuk.com

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