Recomend a Compressor for Pressure pot?

[seven]

I am interested in a pressure pot by CA Tech http://www.finishsystems.com/resincastingpressurepots.html

Anyone know what air compressor would work best for the 5 gallon?

 

[replicaprops]

5 gallon is pretty big. Any 60 psi will work though

 

[seven]

you mean something like this?

http://soccer.epicsports.com/trk108...ra-electric-air-compressor-1-8-hp-60-psi.html

 

[replicaprops]

This will be better. it has a tank so you dont have to wait to long for the pressure to build up.
http://www.walmart.com/catalog/product.do?product_id=9189093

 

[replicaprops]

And most of us use this pressure pot
http://www.harborfreight.com/cpi/ctaf/displayitem.taf?Itemnumber=93119

You will just need one of these to go on it
http://www.homedepot.com/webapp/wcs...Id=10053&productId=100039901&N=10000003+90042

 

[Tetmatek]

that compressor is good if you are only painting small things. you would run outta air if you tried to paint a car or somthing big. It is not the psi that matters it is the CFM's

 

[replicaprops]

I dont think he is painting with it

 

[Fireball Joe]

you mean something like this?

http://soccer.epicsports.com/trk108...ra-electric-air-compressor-1-8-hp-60-psi.html

You don't want to use a little airbrush-style compressor to fill a pressure pot-- your resin will set up before the pressure builds up. Get a nice do-it-yourselfer type of compressor with a tank. They are available at Wal-Mart, Sears, Home Depot, and other places. They don't cost a lot and will make your life a lot easier. Unless you live in an apartment with neighbors all around, that is :lol

 

[Wolvster1]

Important thing to note too if I might add...

You say your pot your looking at is
a 5 GALLON one ? I am going to assume then
you have some large molds you want to put under
pressure for casting ? Here's something to
remember, if you are using a QUICK SETTING
resin { like 2 - 4 minute set up time } I would recommend
you get a compressor with a LARGE tank !

Reason ?

Simple, you DO NOT want a compressor with a piddly little
one gallon tank to QUICKLY fill up at 5 gallon POT ! You need
to remember that it's not JUST the size of the motor on the
compressor { even though a large capacity one HELPS ! }
it's also the size of the TANK !

You put a LARGE mold into a pot you have already
shot say 1- 2 minutes FILLING the mold ! So, give or take
you may have only 1 -2 minutes before it kicks !

You do NOT want a tiny compressor that will take
2- 3 minutes to get UP TO your casting pressure
as your resin will be kicking WHILE your pressuring !!

Not a good thing! :eek

I would look for at LEAST a 5 gallon compressor or
even BETTER a 10 gallon one.. Nice thing about one
with a large tank is once it FILLS it will run allot
less often to keep the pressure up !

In case you have neighbors who hate noise !

:cool

 

[seven]

I appreciate the help.

I am going a long mold as apposed to a large mold, and all the pressure pots at harbor freight weren't tall enough for it. The 5 gallon was tall enough and it's Dia seemed to be average size compared to the smaller pots.

I was hoping to not get a quick setting resin, cuz 3-7 minutes is not much time to stir, pour, and pressureize the pot all before it starts to setup without running the risk of error. However I might not have too much of a choice.
While I am on the topic, what resins would be good to use? Ones that have a decent amount of time before it sets, and one that wont take 72hrs before you demold it. I already have Smooth-on and Bare-Metal Foil on my list.

 

[replicaprops]

Smooth-cast series offer multiple demold times. I prefer 321

 

[Rhett J Martin]

I Second!!

 

[Fireball Joe]

I third the SC-321 from Smooth-On. I currently use it for all my commercial products. It gives you time to work before gelling, demolds in a decent time, and is practically odorless before and after curing. The 321 cures to sort of an amber bone color and there's a similar-performing pure white resin, SC-305. I use 2.5gal pots and fill them from an upright Sears Craftsman 5.5hp compressor with a 25gal tank. That compressor is actually a little overkill for casting, but it's used for all kinds of other household chores, too.

 

[falcondesigns]

I bought mine from Tap Plastic,it has a vaccum chamber as well.

 

[Flintlock]

That one from TAP looks like a handy little device, but it only pulls 28+" of mercury. I was under the impression you need to pull at least 29" to successfully evacuate a batch of RTV...

 

[falcondesigns]

That one from TAP looks like a handy little device, but it only pulls 28+" of mercury. I was under the impression you need to pull at least 29" to successfully evacuate a batch of RTV...

I've been making molds on it for six years.

 

[Flintlock]

I've been making molds on it for six years.

Hmmm... I suppose my impression was mistaken :lol