PPG Concept curing question

[George Kennie]

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
>
>
>
> __________________________________
> Yahoo! Mail - PC Magazine Editors' Choice 2005
> http://mail.yahoo.com
> =================================================
> If you want your reply email to go to the list, you must Cc: the list!
>
> To access the email archives for this list, go to
> http://lists.f3a.us/pipermail/nsrca-discussion/
> To be removed from this list, go to http://www.nsrca.org/discussionA.htm
> and follow the instructions.
>
> List members email returned for mailbox full will be removed from the list.




=================================================
If you want your reply email to go to the list, you must Cc: the list!

To access the email archives for this list, go to
http://lists.f3a.us/pipermail/nsrca-discussion/
To be removed from this list, go to http://www.nsrca.org/discussionA.htm
and follow the instructions.

List members email returned for mailbox full will be removed from the list.