[NSRCA-discussion] paint-new topic...paint death

[Gray E Fowler]

I looked up Imron.  First, on a previous post I responded to "single 
stage"  and I had their terminology wrong. Single stage IS their reactive 
themosetting fuel proof no clear coat required polyurethane paint. So no 
clear coat required, like PPG Concept.

Second, Concerning death by paint....What the problem here is the hardener 
( cannot remember their name for it) which is called isocyanate. The 
material reacts with water vapor. When mixed with the polyester paint 
resin (yeah thats what the paint is) the isocyanate reacts with the resin 
catalyzed by water vapor. This in turn is called a polyurethane.  When the 
paint is sprayed and atomized into tiny little bits, it is easily inhaled 
into the lungs, which are generally wet. The isoscyanate reacts with lung 
water to form a crystal in the lungs.  Acute exposure results in Flu like 
symptoms within 12 hrs...the more exposure the sooner the symptoms. 
Extreme overdose results in death, but we are talking extreme. Regardless, 
it is not good for you to breath.

Bad news, all of you feeling safe with Concept...no such luck...same 
stuff. And for all the lovers of HobbyPoxy...that was removed from the 
market due to lead based pigments (lead poisoning in the lungs) and the 
lack of a real market big enough to support the costs of "reformulation". 

For us Pattern Dudes who gotta spray the ocassional plane...

If you are spraying outside, you can avoid serious exposure. On a day with 
a mild breeze always stay up wind. Choose a day when the breeze is aimed 
at the neighbor you do not like.....really if you are close to something 
sensitive (cars, kids, etc) do not spray. Hold your breath if you are in 
the vicinity of the overspray. Be smart and be aware of the exposure and 
you will, most likely, survive.

All that other stuff....asbestos suit, oxygen supply etc...thats for 
people who use this day in and day out, in enclosed paint booths 8 
hours/day.

If you already have asthma or other medical problems stay away from this 
stuff.  Remember, if it were so deadly,  they would not sell it over the 
counter to every nimrod that walks up...like they do now.

Request from your supplier a Material Safety Data Sheet (MSDS). But DO NOT 
ask for a MSDS sheet (Material Safety Data Sheet Sheet), or guys like me 
will know your are a novice and treat you poorly.
Read it, assess your risk, paint or no paint daplane.
Any questions email me..... Ex-MSDS, most solvents cause liver damage AND 
cancer in California rats only.



Gray Fowler
Senior Principal Chemical Engineer
Radome and Composites Engineering
Raytheon
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