[AT] respirators and Isocyanates (Urethane paint)

[John Wilkens]

Alan,  well, I'm going to have to think about that cost for 
awhile!   The idea of using the system with a sand blasting operation 
sounds good.  I do not enjoy sand blasting!   Isn't there a simple 
inline filter that could be used to block "petroleum vapors"?    John


At 11:19 AM 03/24/2008, you wrote:

>----- Original Message -----
>From: "John Wilkens" <jwilkens at eoni.com>
>  Why not use shop air for an
> > air-supplied mask if  sources away from the paint fumes and goes
> > through the usual moisture filters and has no inline oil
> > injector?  (Cost is a factor here).
>
>Because most shop compressors use oil lubricated pumps.  Unless you can
>filter out ALL petroleum vapor you're going to be breathing oil vapors.  Not
>a lot, maybe, but in this case any is too much.   I used to work for a
>company that had a diving operation so I've been on the periphery of
>discussions about that.  Not sure about the medical name for it but it was
>generally referred to as Petroleum Inhalation Pneumonia.
>
>Cheap is NOT a thing to consider in this case!  I watched eBay for quite a
>while for "supplied air respirator" and managed to pick up a system with
>twin masks and a certified oil free pump for around $400.  Hated to part
>with the money but figured it was just a matter of time before something I
>was spraying got the better of me.
>
>Now that I have it I find excuses to use it.  Works fantastic for keeping
>clean when spraying (with a Wagner Power Painter) latex, overhead.  A set of
>hooded tyvek coveralls and the respirator and all I have to do is shed the
>outer layer when I'm done and it's instant clean.  I even use the system
>under my sandblast hood.  No more lens fogging now.
>
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