Re: safety - pcb dust hazard

Mariss, Lee,

There's also the epoxy problem...

Cumulative exposure to epoxy resins(common in PC bds) can cause wide
ranging effects in many people. Some have been forced to change their
careers. And this IS well documented...

A paper filter "nuisance" mask (dustmask) won't help much here; you
need good REMOVAL of the VAPORS AND DUST. Barring that, an active
filter mask like painters wear is a good precaution. (So I'd try for
good removal<G>)

The problem is, like most other "gotchas" with "cumulative" effects;
you may be fine for years. Another may have problems on first
exposure. And yet after years opf no problems, the next exposure
could affect you seriously too. (kinda like the anaphylactic shock of
bee stings)

Hope this helps,

Ballendo

--- In CAD_CAM_EDM_DRO@y..., "mariss92705" <mariss92705@y...> wrote:
> Lee,
>
> What that is probably refering to is fiberglass dust. You probably
> are aware of the big hulabaloo regarding asbestos dust and the lung
> cancer cases attributed to asbestos. Some have tried to draw a
> corrolary to fiberglass.
>
> In my opinion this does not hold water. Asbestos paricles are sub
> micron in size while fiberglass particles are much, much larger.
They
> do have the ability to irritate the skin. I know because I am one
of
> those people that having crawled thru an attic space filled with
> fiberglass will itch for three days afterwards.
>
> To my knowledge, there has never been an established relationship
> between fiberglass exposure and any nasty, chronic illness like
> cancer.
>
> Still, you don't want to breathe the stuff on a regular basis. Use
a
> paper filter mask if you are around it.
>
> Mariss
>
>
>
> --- In CAD_CAM_EDM_DRO@y..., "andrewyslee" <andrewlee@s...> wrote:
> > Hi,
> >
> > Got this from a website on routing/drilling printed circuit board.
> >
> > IF AVAILABLE, ALWAYS USE A VACUUM CLEANER TO REMOVE DEBRIS AND
> > COLLECT AIRBORNE DUST DURING THE DRILLING OPERATION. THE DUST
> > GENERATED DURING PCB DRILLING CAN POSE A VERY SERIOUS HEALTH
HAZARD
> > AND SHOULD NOT BE INHALED OR INGESTED UNDER ANY CIRCUMSTANCES.
> >
> > Been drilling/burring PCB without too much precaution. Please
tell
> me
> > I will still get to see tomorrow. The site didn't say what the
> serios
> > health hazards are. Hope someone can enlighthen us so that we can
> be
> > more concientious/cautious the next time or give up this hobby.
> >
> > Thanks
> >
> > Lee