Re: [casting] Re: respirators does any one use them?
- Thanks for the additional information, that's very useful to know.
What I wonder about now is whether PU casting resins release (di-)
isocyanates during mixing and curing. With spray painting an enormous
total surface is created by the large number of tiny droplets, but
in casting we're creating only a very small area generally.
At 17:17 02-12-2012, you wrote:
> "A charcoal respirator will not protect you from the icoyanates."
>I am going to have to disagree. A charcoal respirator is accepted in
>industrial safety practice (by OSHA) for intermittent low level
>exposure (like laboratory work)to isocyanates. We are talking about
>half mask with replaceable cartridges here. One should also note
>that charcoal cartridges are only rated to a total of 8 hours of
>accumulated use maximum, and must be kept in a sealed container when
>not in use. I would always use one for spraying any type of paint.
>For factory floor multi-hour shift work, a fresh air mask is
>Yahoo! Groups Links