 
|
Audio Asylum Thread Printer Get a view of an entire thread on one page |
For Sale Ads |
|
|
Audio Asylum Thread Printer Get a view of an entire thread on one page |
For Sale Ads |
63.16.88.99
In Reply to: RE: lead free soldering and lead poisoning posted by wlee on August 06, 2007 at 07:48:02
The pencil lead is a misconception. Actually the lead in a pencil is graphite mixed with a bit of clay in order to achieve a certain range of hardness. Long, long ago, when I was a kid, I do recall that they used lead paint for those pencils, but that is supposed to have long been outlawed.It's funny, but lead in paint has similar effects as lead in solder. It enables both to wet the surfaces better and the result is a smoother surface.
Stu
Edits: 08/06/07Follow Ups:
hi Steve,
long long ago was when? I was using pencils around up to 1973 when I was 17, was then pencils made from lead?
How do you know so much about lead?? Wow, so the lead is the catalyst for contact in the case of paint and solder?!!
very best rgds
William
I was using pencils from the mid 50's. I believe they took out the lead paint by the early 60's, but that was a quite a while back and as a kid, I don't remember much except that I was always being told not to chew on my pencil. Now, mind you only the paint used lead, not the center graphite core. I do believe the lead paint tasted a bit sweet....but since lead is supposed to reduce your IQ, I think it tasted sweet.
As for knowing about lead, I am a repository of great amounts of usually totally useless information. I also was a nuclear worker in the US Navy for a while and we used a lot of lead for shielding. There were times it felt like I could scratch my ankles without bending over.
;^)
Stu
Recently I always have sore throat after doing soldering. Not too extensive but may be 10-20 soldering points. Even with the window open, and lead free solder, it still effect my throat! I guess I need to use protection filter mask next time!
WLee
That is caused by the flux. I get the same way too sometimes.A little fan helps a lot
Stu
That was indeed long time ago, it must be about 15 years ahead of my time! And yes, I remeber the pencil is a bit sweet, may be in Asia they still use lead then in the paint of the pencils? I always though the H in HB is the lead portion...!
Anyway, 50's always made me feel life was tender and warm then, one of my fav movie is <> . I recently introduced to modernism and post modernism, I was told we are now too rational and less sensational, we are more precise and mechine like! So I guess the water shade was at around 60's-70's? up to IBM 370 perhaps??
warmest rgds
WLee
| FAQ |
Post a Message! |
Forgot Password? |
|
||||||||||||||
|
||||||||||||||
This post is made possible by the generous support of people like you and our sponsors:
Top of Page ]
[ Contact Us ]
[ Support/Wish List ]
[ Copyright © 2025, Audio Asylum, all rights reserved ]
