Speaking of painting...Respirator tips

[Ed Alt]

Gray:
I would really be interested in this info.  

Thanks
Ed
  ----- Original Message ----- 
  From: Gray E Fowler 
  To: discussion at nsrca.org 
  Sent: Monday, January 17, 2005 6:22 PM
  Subject: Re: Speaking of painting...Respirator tips



  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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