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Pressure pot questions/suggestions

1/2/16       
Bill Richardson  Member

Website: http://www.awwtx.com

I need to add a pressure pot and gun to my arsenal. After reading all I could find on this forum, I'm still lost.

There seems to be a fairly wide range of pricing for 2qt pressure pots. Are there any real advantages to higher priced units?

What would be a good mid-range setup (approx. $300-$500)? This setup will be for higher viscosity undercoaters and sealers. All top coats are applied with a Kremlin AAA.

1/2/16       #2: Pressure pot questions/suggestions ...
Nick

First a couple of questions; what primer(s) will you.be using? How much will you be spraying at any one time? Will you be spraying inside of boxes?
2 quart pots aren't the best choice highly viscous material, the screw on lids can leak air making it hard to reach the pressure needed to push your primer...the exceptions being, the binks sg2 and the cat bandit. Both of these have clamp down lids...but they don't come cheap, $300.00 on eBay. If you're spraying more than a gallon at a time get a 2 gallon pot. If you're spraying wb; teflon coated, aluminum or ss is the way to go.if you're spraying the inside of boxes get 15' of fluid & air line. If not and you won't be spraying much consider a stainlwas steel pressure quart cup.

1/5/16       #3: Pressure pot questions/suggestions ...
chris

have you tried spraying through your kremlin. you might just need a bigger tip.3-400 PSI from kremlin vs.10 PSI from a pressure pot.

1/6/16       #4: Pressure pot questions/suggestions ...
Shane

Your going to use a heck of a lot less product spraying primers/undercoaters through your AAA... not to mention cleaning solvent to clean up a dang pressure pot all the time... I do not miss those days.....With the right tip/orfice size and the correct viscosity primer you should be laying it down like glass!!!!! I personally use Kemvar primers from Sherwin Williams and we have them pre-reduce it for us in batches of 100 gallons... it's always in a five and pre-reduced.... We catalyze it, agitate it and lay it on.... 5-6 mill wet pass... flash for a few minutes and hit it two more times.... that's three 5-6 mill wet passes...This gives the pieces exceptional fill... we let it sit about 30 minutes and force dry in a big curing oven at 115F for thirty minutes and sand it back hard.... ready for topcoat!

1/6/16       #5: Pressure pot questions/suggestions ...
Bill Richardson  Member

Website: http://www.awwtx.com

Sorry for the delay in responding.....

For tinted coatings we're not high volume. Some cabinetry but generally stand alone furniture. In the past we've shot pigmented pre-cat lacquer but are moving to Valspar vinyl undercoater tinted to spec and top coated with Valspar CV.

My biggest concern about using the Kremlin is mixing pigmented and clear materials. Getting the system completely flushed of any pigment worries me, hence the thought of adding a small pressure pot.

1/6/16       #6: Pressure pot questions/suggestions ...
Shane

We are a very large volume shop 20+ million in sales a year and my booth finisher have a few pumps per booth.... we change back and forth between pigment and clear all the time.... it's just a matter of keeping your equipment clean... if the pump stays clean and you wipe the stem down and flush with two different buckets... one just a semi clean solvent and then a final flush with clean solvent and pull the screen on the gun there is nothing to worry with.... Heck I have one kremlin 10:14 at home I've used off and on around the house for ten years that one minute i'll shoot black primer and ten minutes later I'm running clear... no biggie if you learn to keep one clean... still beats running gallons of acetone through a pressure pot and scrubbing the lid of it to clean it real good...

1/6/16       #7: Pressure pot questions/suggestions ...
Hen Bob Member

I agree with just using the AAA. I use C.A. Technologies Bobcat's, 3 of them. One for primer, one for paint , one for clear...

Yes more of an investment , but never any thought of white specks in the clear is well worth the money.

1/7/16       #8: Pressure pot questions/suggestions ...
John Member

For small jobs like a piece of furniture I would use an HVLP gun with a pressure cup. You can spray a pretty good sized cabinet or piece of furniture with a quart cup and clean up is much faster not having to clean out lines. I just bought a gun with a 3M H/O PPS cup which allows you to spray at an angle, including upside down, and clean up is even easier.

John

1/8/16       #9: Pressure pot questions/suggestions ...
Ger

We use a Kremlin 10:14 pump but have not had much luck getting it to clean up properly after using pigmented primer or top coats. We use both MLC and Chemcraft products. We always end up having to take the bottom pump assembly apart to clean the ball and cage. If we don't do this the pump creeps and will not stay in the down position. Because of this issue we use a pressure pot for pigmented products.

Shane could you share your cleaning procedure?

Thanks,
Gerry

1/11/16       #10: Pressure pot questions/suggestions ...
Mike Fuson

The only thing I use my pot for is to spray clears. I sprayed a pigment one time and thought I cleaned it good but every now and then would get specs of pigment in my clears. Bought new hoses. I wouldn't fool with a 2qt, the screw on lids are a hassle.
If I were going to buy a new pot set up, I'd spend less on a pot and hoses and spend more on a good gun. That's just my 2 cents.
I spray all my pigments with gravity guns.

1/12/16       #11: Pressure pot questions/suggestions ...
Nick

One other option that can be cost effective (especially when compared to a new AAA) is to buy a small used airless of your local craigslist. Graco 390 or 395, Titan 440 ect...
They are great at pushing viscous material and not bad with finish quality or overspray when using a fine-finish tip at just enough pressure to get a tail free fan.

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