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<DIV><FONT face=Arial size=2>OK now elaborate on the can sprays like Lusterkote
and Century 21 sprays...</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>Man youse smart....</FONT></DIV>
<DIV> </DIV>
<DIV><FONT face=Arial size=2>WG</FONT></DIV>
<BLOCKQUOTE
style="PADDING-RIGHT: 0px; PADDING-LEFT: 5px; MARGIN-LEFT: 5px; BORDER-LEFT: #000000 2px solid; MARGIN-RIGHT: 0px">
<DIV style="FONT: 10pt arial">----- Original Message ----- </DIV>
<DIV
style="BACKGROUND: #e4e4e4; FONT: 10pt arial; font-color: black"><B>From:</B>
<A title=gfowler@raytheon.com href="mailto:gfowler@raytheon.com">Gray E
Fowler</A> </DIV>
<DIV style="FONT: 10pt arial"><B>To:</B> <A title=discussion@nsrca.org
href="mailto:discussion@nsrca.org">discussion@nsrca.org</A> </DIV>
<DIV style="FONT: 10pt arial"><B>Sent:</B> Friday, July 25, 2003 9:49 AM</DIV>
<DIV style="FONT: 10pt arial"><B>Subject:</B> RE: PPG Concept safety</DIV>
<DIV><BR></DIV><BR><FONT face=sans-serif size=2>Concerning Concept
paint.........Here is my 3.5 cents worth. The OSHA reference is good but
remember this is a workplace regulation which means it is written as a CYA
kinda thing. They assume that if you are using any chemical then you are being
exposed to it for 8 hours a day because that is your job. Based on that they
set limits. In reality a guy painting a toy airplane at his house never
entered into the realm of OSHA thinking.</FONT> <BR><FONT face=sans-serif
size=2>So!.....there are two problems that the average pattern geek need to be
concerned with, Solvent exposure and isocyanate exposure. Dermal exposure (aka
skin for those of you who do not "dig" tech speak) should not be a concern
because you should be outside letting the overspray drift away from you and
onto your neighbors car, or second, if you are inside you better get a bigger
fan. If not you will be sticky and that is the biggest dermal
problem....(imagine if you did this 8 hrs a day! you would be UV resistant and
not require sunscreen at contests-thats a positive way to look at it). In
short...you ain't gonna die...if you do its not my fault. In an overspray
situation the solvents will be nearly gone by the time is hits your skin. The
small amount that of isocyanate on your skin will not cause any significant
problems...but do not get coated with the overspray-change your
situation.</FONT> <BR><BR><FONT face=sans-serif size=2>The real problem is
breathing the overspray-isocyanate much worse than solvent. Solvent inhalation
problems take alot of solvent for a long period of time. (Think about your
cousin the glue/paint sniffer and how long he has managed to survive half
intact directly breathing huge concentrations of solvents). Breathing the
solvent from Concept once or twice a year once again will not kill you.
Minimize your exposure and if you have a respirator use it. The major
breathing problem is the isocyanate. It is nasty and as a matter of fact so
nasty that you and I as pattern geeks are technically not supposed to even
have this paint in our possession. But hey...... we are relatively smart guys
with big egos and we know how to deal with 30% nitro so this should be no
problem .....right?</FONT> <BR><BR><FONT face=sans-serif size=2>The moment
isocyanate comes in contact with your body's mucous membranes (the WET slimy
parts of carbon based units) the isocyanate reacts into a crystalline
structure (in your lungs) and it aint coming out any time soon. Over exposure
will give the shortness of breath and flu like symptoms.</FONT> <BR><FONT
face=sans-serif size=2>If you have breathing problems or smoke this will be
greatly worse.</FONT> <BR><BR><FONT face=sans-serif size=2>Bad news...</FONT>
<BR><BR><FONT face=sans-serif size=2>"Dust" masks will not protect you from
solvent or isocyanate exposure.</FONT> <BR><FONT face=sans-serif size=2>That
respirator you bought last year that has been used twice will not protect you
either-unless you have new cartridges on it. If you paint a plane every 3
months you had better have new cartridges every time IF you are breathing the
overspray.</FONT> <BR><FONT face=sans-serif size=2>Try not to inhale the
overspray....me- I am an expert at holding my breath while painting. Of course
anything that reduces the overspray, or gets it outta your way is good.</FONT>
<BR><BR><FONT face=sans-serif size=2><BR><BR><BR><BR>Gray Fowler<BR>Principal
Chemical Engineer<BR>Composites Engineering</FONT></BLOCKQUOTE></BODY></HTML>