PPG Concept safety

Fri Jul 25 09:04:25 AKDT 2003

I've used Lusterkote on my last 3 planes without any issue. The only 
paint I've had problems with was Rustoleum (enamal), after four years 
it got soft where exhuast coated it every flight.

> On the fuel proof aura, if you clear coat with the Concept paint 
after
> putting down the colors in Lusterkote, then you should have a fuel 
proofed
> finish - or is that a bad assumption.  
>  
> Also,  is it correct to surmise that the spray can paint 
(Lusterkote) does
> not have the nasty isocyanate?  
>  
> -DD
>  
> 
> -----Original Message-----
> From: Gray E Fowler [mailto:gfowler at raytheon.com]
> Sent: Friday, July 25, 2003 10:28 AM
> To: discussion at nsrca.org
> Subject: Re: PPG Concept safety
> 
> 
> 
> Other than solvent....practically inert. Stuff in a can is a solid 
resin cut
> in solvent to make it liquid. Spray it on- solvent evaporates and 
leaves a
> resin film filled with pigments and such. This paint "drys" -the 
evaporation
> of solvent. Concept "drys" then "cures". The curing gives the 
properties we
> desire-paints that dry only really are not fuel proof, just
> resistant....including dope. Methanol is not a "good" solvent (like 
acetone
> is) but since this is our fuel it is what we concern ourselves with 
(and
> nitro)....so our single component paints have an aura of fuel 
proofness to
> them. 
> 
> hows dat?
> 
> 
> 
> Gray Fowler
> Principal Chemical Engineer
> Composites Engineering 
> 
> 
> 
> 	"Wayne Galligan" <wgalligan at goodsonacura.com> 
> Sent by: discussion-request at nsrca.org 
> 
> 
> 07/25/2003 09:56 AM 
> Please respond to discussion 
> 
> 
>         
>         To:        <discussion at nsrca.org> 
>         cc:         
>         Subject:        Re: PPG Concept safety
> 
> 
> 
> OK now elaborate on the can sprays like Lusterkote and Century 21 
sprays... 
>   
> Man youse smart.... 
>   
> WG 
> ----- Original Message ----- 
> From:  <mailto:gfowler at raytheon.com> Gray E Fowler 
> To:  <mailto:discussion at nsrca.org> discussion at nsrca.org 
> Sent: Friday, July 25, 2003 9:49 AM 
> Subject: RE: PPG Concept safety 
> 
> 
> 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. 
> 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. 
> 
> 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? 
> 
> 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. 
> If you have breathing problems or smoke this will be greatly worse. 
> 
> Bad news... 
> 
> "Dust" masks will not protect you from solvent or isocyanate 
exposure. 
> 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. 
> 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. 
> 
> 
> 
> 
> 
> Gray Fowler
> Principal Chemical Engineer
> Composites Engineering 
> 
> 
> 
> 

-- 
CoreComm Webmail. 
http://home.core.com

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