Unfortunately, this sort of subjectiveness is the norm for all advertising.
I find it increasingly difficult to do any sort of objective product
evaluations based on the information provided by the manufacturers. Even if
the meaningful data is there, I burnout by the time I wade through all the
marketing BS. I don't know how they can write so much and say so little.


"Dave" wrote in message
...

On Mon, 03 Oct 2005 11:41:06 -0400, Jeff said:


There's nothing wrong with bronze:

This phrase struck me: "safer and more durable than lead." So just how
many
people have gotten lead poisoning from using a sounding lead? How many
lead
sounding weights have disintegrated from corrosion?

Are they simply playing upon the willingness of enviros to accept
unsupported fairy tales?

Just curious, would not a NIOSH organic vapor respirator help? (I mean
the darth vader mask, not the flimpsy paper ones). My guess is, if you
own a boat, you have the half-mask at least anyway (and if not, my
opinion is you should if you ever do bottom or epoxy jobx). All you'd
need is a new set of cartridges if you don't already have the organic
vapor ones; if you do enough of your own boat work to build your own
lead sounder, you should probably already own some serious protective
gear.

I don't knwo what the danger is with lead (other than eathing the paint
like candy), but, as said, was curious.

mickey

Just curious, would not a NIOSH organic vapor respirator help? (I mean
the darth vader mask, not the flimpsy paper ones). My guess is, if you
own a boat, you have the half-mask at least anyway (and if not, my
opinion is you should if you ever do bottom or epoxy jobx). All you'd
need is a new set of cartridges if you don't already have the organic
vapor ones; if you do enough of your own boat work to build your own
lead sounder, you should probably already own some serious protective
gear.

I don't knwo what the danger is with lead (other than eathing the paint
like candy), but, as said, was curious.

mickey

"mickey" wrote:

Just curious, would not a NIOSH organic vapor respirator help? (I mean
the darth vader mask, not the flimpsy paper ones). My guess is, if you

An organic vapor mask won't protect against lead fume because lead
fume isn't an organic vapor. Lead fume is a very small particle.

own a boat, you have the half-mask at least anyway (and if not, my
opinion is you should if you ever do bottom or epoxy jobx). All you'd
need is a new set of cartridges if you don't already have the organic
vapor ones; if you do enough of your own boat work to build your own
lead sounder, you should probably already own some serious protective
gear.

I don't knwo what the danger is with lead (other than eathing the paint
like candy), but, as said, was curious.

In men, lead can damage sperm and affect the sperm's ability to move.
It can affect the number of sperm that is produced in the testes.
These effects on sperm can harm a man's ability to father children and
have been linked to miscarriages and birth defects in their partners.
These health effects can occur at 40-50 ug/dl. Some studies have also
indicated that lead can affect a man's sex drive and ability to have
an erection.

In women, exposure to high levels of lead may cause miscarriages,
premature births, stillbirths and decreased fertility. More recently,
some studies found that pregnant women with levels of lead in the
umbilical cord blood of 10-15 ug/dl had children who suffer from
learning and behavioral problems later in life. This is because lead
in the pregnant mother's blood passes into the blood of the fetus and
may affect brain development.

grandma Rosalie

"Gordon" wrote:

The boiling point of pure lead is 3180F. The melting point is 621.43F.
Vaporization will not occur at the melting point as you yourself pointed out
with your comment about the microchip industry.
What you sampled, IMHO, was lead dust, not fumes. Did you measure the
particle sizes present?

It doesn't really matter to the body whether the lead is breathed in
as dust or fume. Both are hazardous.

What was they're method of melting the lead? If they were using a welding
torch, they could very well be exceeding the 3180F temps. This won't happen
with a stove.

The radiator shops were frequently using propane torches. Welding
cutting or burning on metal with lead paint will release lead fume.
If a shop just used a soldering iron, then I didn't get much exposure.

The people doing the lead frogs were using a propane heated pot. The
actual reason I went there was that the lead melted into the propane
heater orifices and plugged them up so propane was being discharged
unburnt into the atmosphere, and they got propane poisoning. When
they got to the hospital, and alert ER doctor tested their blood for
lead and found high amounts. They also tested the homes of the
workers and found lead contamination there especially where they
dropped their work clothing.

I did once get an exposure to lead in a factory that made fuses when
they weren't using lead solder, but were using silver solder. This
made no sense until I found that they coated the terminals that they
were soldering with lead to keep them from corroding, and when they
did the silver soldering (which is higher temperature than lead solder
as you know), it just vaporized the lead immediately.

Macho Man thump thump thump (sound of beating my chest ;) )


"Rosalie B." wrote in message
.. .
"Gordon" wrote:

How does melting lead expose you to lead? There are NO lead fumes and
you

There ARE lead fumes. I once sampled in an old garage where they were
melting lead to make flower arranging frogs (those things with the
spikes in them that sit in the bottom of the vase so the flower stems
don't fall over). The whole place was so permeated with lead that
they could not even tear it down without making it hazardous waste.
Great overexposures to lead.

Welding, even on mild steel can create a problem, and also of course
using red lead paint, or doing construction on steel that has been
painted with lead paint. Even children who live near a construction
project on a bridge which has been painted with lead paint can lead
overexposures.

can wear gloves. If melting lead was a problem, every person that ever

Gloves only protect you from the heat. The danger with lead is
inhaling the fume.

soldered would have a problem!

I've also sampled in radiator repair shops - lots of lead exposure
when they solder the radiators. Respirators required and periodic
blood testing. Ventilation helps.

Most people that use lead-tin solder don't do enough of it to have a
problem. The amount of solder is small, and they heat it just barely
hot enough to flow. The amount generated in the microchip industry
for instance is not hazardous.

That said, old tire weights are covered with dirt, grease, rubber and
everything else off the road and will certainly smoke and smell bad when
melting the lead and that stuff, I would not breathe!
I melt the stuff outside in a coffee can on an old camp stove.
Gordon

Dirt, grease and rubber may smell bad, but the lead itself is the
biggest hazard.

I realize that this goes counter to the macho culture, but it is the
truth.

"Rosalie B." wrote in message
.. .
"Skip Gundlach" skipgundlach at earthlink dot fishcatcher (.net)
wrote:

If you're making your own, go to the tire shops and get their used
lead.
See
Glenn Ashmore's site about how he built his keel!

Is there that much lead in a sounding lead?

In any case, I really do not agree that melting lead is the way to go
because lead overexposure is no joke, and it can occur even outdoors.
If you were doing it on a very limited basis, it probably would be OK
provided that you were not also exposed in other ways (like removing
lead paint or making your own lead shot).

grandma Rosalie


grandma Rosalie


grandma Rosalie

Dave wrote:


On Mon, 03 Oct 2005 11:41:06 -0400, Jeff said:


There's nothing wrong with bronze:

This phrase struck me: "safer and more durable than lead." So just how many
people have gotten lead poisoning from using a sounding lead? How many lead
sounding weights have disintegrated from corrosion?

I don't think anyone would get lead poisoning from using a sounding
lead. Lead in bulk is pretty much non-hazardous.

Are they simply playing upon the willingness of enviros to accept
unsupported fairy tales?


grandma Rosalie

Dave wrote:


On Mon, 03 Oct 2005 18:31:49 GMT, Rosalie B.
said:


The boiling point of pure lead is 3180F. The melting point is 621.43F.
Vaporization will not occur at the melting point as you yourself pointed out
with your comment about the microchip industry.
What you sampled, IMHO, was lead dust, not fumes. Did you measure the
particle sizes present?

It doesn't really matter to the body whether the lead is breathed in
as dust or fume. Both are hazardous.

It makes a great deal of difference, however, to the matter under
discussion. You argue that melting lead in a can over a stove creates lead
fumes. Gordon argues that the temperature is too low to create lead fumes.
The fact that lead might be ingested by breathing dust is utterly irrelevant
to that issue.

Except that lead fume, if it isn't breathed in BECOMES lead dust when
it cools.

What did you think happened to it?


grandma Rosalie

Courtney Thomas wrote:
Maybe a fisherman's outlet ?

Hopefully,
Courtney

Landfall Navigation.

"Courtney Thomas" wrote in message
news
Maybe a fisherman's outlet ?

Hopefully,
Courtney

Sounding leads are generally made of bronze.

"Gordon" wrote in message
...
How does melting lead expose you to lead? There are NO lead fumes and
you
can wear gloves. If melting lead was a problem, every person that ever
soldered would have a problem!
That said, old tire weights are covered with dirt, grease, rubber and
everything else off the road and will certainly smoke and smell bad when
melting the lead and that stuff, I would not breathe!
I melt the stuff outside in a coffee can on an old camp stove.
Gordon


"Rosalie B." wrote in message
...
"Skip Gundlach" skipgundlach at earthlink dot fishcatcher (.net)
wrote:

If you're making your own, go to the tire shops and get their used lead.
See
Glenn Ashmore's site about how he built his keel!

Is there that much lead in a sounding lead?

In any case, I really do not agree that melting lead is the way to go
because lead overexposure is no joke, and it can occur even outdoors.
If you were doing it on a very limited basis, it probably would be OK
provided that you were not also exposed in other ways (like removing
lead paint or making your own lead shot).

grandma Rosalie