Speaking of painting...Respirator tips

[Gray E Fowler]

There are canisters that will give a 100% respiratory protection. I can go 
dig up this info tomorrow if anyone wants to know. It has to be a dual 
rated cartridge, one for organic solvent one for  the isocyanate. You 
cannot rely on vendor data as their only priority is to be able to stand 
up in court and say,  "But Judge-mon, our label clearly states that use of 
our product guarantees death to the user and renders his sperm only good 
for the production of birth defects......." 

Isocyanate can be absorbed through the skin, but not nearly as acute as 
breathing. Spray outside and remain up wind, let your neighbors enjoy your 
hobby also.....



Gray Fowler
Principal Chemical Engineer
Composites Engineering




humptybump at comcast.net
Sent by: discussion-request at nsrca.org
01/17/2005 04:56 PM
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        Subject:        Re: Speaking of painting...Respirator tips


I guess the pro painters that live with this stuff should all be dead  . I 
havn't seen one yet with a fresh air system , and they work 8-9 hours a 
day in the paint booth.  hmmmmmm.
 
 
 
-------------- Original message -------------- 
This is my understanding also....that there is no canister-type mask that 
will protect you from isocyanates (i.e., acrylic urethane paints such as 
PPG Concept), and the only truely safe way to use isocyanate-based paints 
is with a remote air supply.
 
It is not just inhalation of vapors that is problematic, it is also 
absorption through eyes and skin.  Isocyanate-based paints are dangerous 
and some folks can have very bad reactions to trace amounts of 
isocyanates.  Err on the side of caution.
 
Andre'
----- Original Message ----- 
From: MKMSG at aol.com 
To: discussion at nsrca.org 
Sent: Sunday, January 16, 2005 8:44 AM
Subject: Re: Speaking of painting...Respirator tips

Clay:  What model 3M mask/filter is safe (as stated by 3M) for use with 
isocyanates?  My experience has been Dupont states that a self contained 
or supplied fresh air system is the only safe way to spray their 
isocyanate based paints. 
 
Mike Moritko
 
In a message dated 1/16/05 11:11:10 AM Central Standard Time, 
clay2 at highstream.net writes:
Hello all,
 
I sell Dupont brand out of my parts store.  A word about the 3m Masks. 
They are widely and almost exclusively used by all the professional 
painters in my area.  One thing you DO want to do when storing the mask in the re-sealable package along with cleaning them thouroughly is to remove and dispose of the 
canister pre-filters. If you do not, the canister will deteriorate just has if a painter would 
use them everyday.  New pre-filters are available from anyone selling the 
masks.
 
Clay Schmidt
 
 

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