PPG Concept curing question

[Jim Ivey]

Georgie
 Sounds like you made your own unregulated Bi-Pap machine. People that have sleep apnea use them. Just make sure there is enough flow to exhaust the carbon dioxide that you exhale.
Not being negative, just cautious.

Jim Ivey
> 
> From: George Kennie <geobet at gis.net>
> Date: 2005/10/24 Mon PM 02:05:28 EDT
> To: Bob Kane <getterflash at yahoo.com>
> CC: HankPajari at aol.com,  discussion at nsrca.org
> Subject: Re: PPG Concept curing question
> 
> Somebody might be interested in my solution to the respirator situation
> regarding the spraying of toxic materials.
> After spraying several models in my cellar using a high quality respirator
> maskI decided that it was probably less than optimally effective due to the
> fact that I also have a beard, so I decided  to construct a positive pressure
> respirator system. My understanding is that these things are quite expensive
> and I'm poor so I rummaged around in my junk stuff and found an old half worn
> out 5" muffin fan. I then constructed a 5" square box to mount the fan in and
> cut a couple of approx 2" diameter holes on opposite sides of the box on either
> side of the fan. Went to Home Depot and picked up a piece of 2" PVC pipe and a
> length of 2" diameter vacuum cleaner hose. Came home and drilled a hole through
> the foundation and stuck the 2" pipe in the hole and the 5" box on the other
> end just above my spray booth and connected the vacuum cleaner hose to the
> other side of the box and then removed one of the canister filters from my
> spray  mask and made up a wooden disk to fit the filter receptical with a 2"
> hole in the center into which I plugged the other end of the vacuum cleaner
> hose.Rigged it up to energize the fan with the booth lighting and it seems to
> work quite well.
> Now I have to tell you that the fan is not a high performance unit, but it puts
> out more than I breathe and the excess exits through the other canister. When
> in use I cannot smell any paint fumes and yes it's a little cumbersome at
> times, but I'm not enamored with the alternatives.With a softer material hose I
> doubt that you'd be aware of it.
> Oh yeah, I throw a PVC cap on the outside end of the pipe to discourage any
> vermin intrusion.
> I had some old scrap plywood laying around so the box was free and I think the
> hose was around $10 and $2 something for the PVC pipe.
> Works for me!
> Georgie
> 
> Bob Kane wrote:
> 
> > I was spooked by the Concepts paints at first but with
> > reasonable care you can spray safely. I built a small
> > spray booth, roughly 4' wide, 8' long, and 6 1/2'
> > tall. It is made of furring strips covered on all
> > sides with clear drop plastic. There is a 20" box fan
> > mounted on one end in the center pulling air out of
> > the booth. The booth sits in my garage with the fan
> > blowing out towards my driveway. I originally thought
> > I would be in the both with the plane, but it turns
> > out it is easier to stand outside, so one side of the
> > booth is covered with plastic up about half-way. I
> > wear a 3M mask #07193, with a two stage filter of
> > activated charcoal and a fine filter. If you can smell
> > fumes you have an inadequate mask.
> >
> > I spray with the garage door open (and the cars moved
> > out of the drivway) so the fumes are blown outside. So
> > far, I have not detected any paint on the filters of
> > my mask, so the booth is doing a good job of pulling
> > the overspray out.
> >
> > I use a Chinese HVLP touch-up gun. I plan on covering
> > this in my next K-Factor article, but setting the air
> > and paint flow needles is critical, analogous to
> > setting needles on an engine. Make sure you test spray
> > on something to check your seetings so you get the
> > right amount of air and paint.
> >
> > --- HankPajari at aol.com wrote:
> >
> > > This may have been covered but I don't recall
> > > specifics for Concept.   I have
> > > a couple of HVLP guns and a good compressor but
> > > don't know what  other
> > > equipment you need to shoot this stuff.
> > > Specifically what safety  equipment do you
> > > need?  Mask etc.
> > >
> > > Thanks
> > >
> > > Hank
> > >
> > > In a message dated 10/20/2005 3:48:52 P.M. Pacific
> > > Daylight Time,
> > > getterflash at yahoo.com writes:
> > >
> > > I am  using PPG Concept (DCC) paints for the first
> > > > time. I had innocently  assumed since this was a
> > > > two-part paint, it cured much like epoxy. But
> > > after
> > > > working the stuff for a couple of weeks I noticed
> > > > the  unmixed paint in the empty cans was "dry".
> > > So, my
> > > > assumption is  the paint will "dry" on it's own,
> > > but
> > > > would not have the durability of  properly mixed
> > > > paint?
> > > > The hardener gets all the molecules link  arms and
> > > > form a tougher material? Thanks in advance
> > >
> > >
> > >
> > >
> > >
> > >
> >
> > Bob Kane
> > getterflash at yahoo.com
> >
> >
> >
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> 
> 
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