Hello all,
Getting very close to shooting the dome, still working out the last
equipment issues. I have been messing around with a Graco texture
sprayer, which seems to work pretty good (if I keep a close eye on the
mix thickness).
Video here http://www.youtube.com/watch?v=EMDYFV28eZs
The Graco pump senses the airflow and automatically turns the PC pump
on and off so all I have to do is operate the air valve. I tried to
shoot some PC that was too thick and the PC jammed up a couple of
orifices inside the pump, and after I tore it down and fixed that it's
been fine. I can shoot some pretty thick stuff, see the other video
for more on the pump setup http://www.youtube.com/watch?v=Q9YpN5Wd5Wo
I can get it to stick to slippery vertical surfaces until it's a bit
over 1/4" thick, so I'm hoping that will be good enough for the
scratch coat. I'm just using cellulose insulation and portland cement
so far, but I'll mess around with adding latex paint too soon, as well
as shooting the Blox mix (which I need to go get now that the gun is
ready).
Speaking of the gun, I tried the Graco texture gun just for grins, and
it couldn't handle the PC, it has a shutoff valve to stop the flow of
texture material, and that would jam up with PC so I adapted my
earlier design gun made from PVC plumbing pcs and it works fine
(although it does slobber after I shut off the air, might add a ball
valve there eventually).
So now I'm working on my scaffold system (another story there) and
waiting for a good opportunity to go shoot the dome, I think I'll need
three days of at least 65 degree weather, maybe this week...
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