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Advice needed for new spray system12/21
I am looking for input on equipment upgrade for spraying. Currently we have a CAPspray 2 liter pressure fed spray gun and multiple cheap hvlp cup guns. This is for a two man shop that continuously is doing different types of work; bar tops, wainscoting panels, stair treads, hand rails, many face frames, cabinet doors, passage doors, etc.
All sign point to AAA setup on a cart or wall mount..... Very little cleanup needed between color/finish type changes... broad option of spray tips for viscosity..speed of laying the coating down... excellent atomization..... Kremlin would be my top choice.. the 10:1 is a work horse and the 15:1 Eos is a great setup for a little more....The graco 15:1 are good too.... CAT is probably the most affordable... parts are a little cheaper but not near are dependable as kremlin..I have about 30 or so AAA pumps working in our facility that put in some serious hours.... Nothing stands taller than the kremlins here...
With a AAA setup, is it feasable to spray 600 ml of CV or is there a lot of waste by not doing volumes of it at a time? I guess I need to look in to a demo or watch videos of the AAA setups as they are completely new to me.
You might consider the 3M Accuspray/PPS system for your low volume needs. Very little wasted finish and very simple cleanup. The PPS system can also be fitted to a conventional gun with most of the benefits.
For small batches Kremlin has a hopper kit that lets you work with small amounts and still have the benefit of AA
The Graco FinishPro HVLP 9.5 is looking very alluring, it has the cup liners, is designed for batches smaller than 3 gallons, and has no lines to clean after use. I cannot see any drawbacks to go with a turbine set up, thoughts on this?
Turbine sprayers typically heat the air 30 degrees hotter than ambient temp.
I used pressure pots for about 10 years before switching to a Kremlin EOS 15:1 pump a few years ago. I can't believe I waited so long. Way more efficient, quick to clean and switch between products. It needs at least 500ml if you use the pickup hose, I have heard you can use less with a hopper. For smaller batches I use Binks Mach1SL gravity fed guns. I have a separate CAT 14:1 pump that I use for pigmented that I like as well.
Josh, switching between all those chemistries with a pump will in the long haul will be a pain. Lots of flushing and then somebody does a half ass flush and then you are plugging filters.
I agree with Bob in regards to the pump, for jobs less than a 1/2 gallon it's not the way to go. a couple of gravity guns with the pps cups, various needle/nozzle sets and one 2 quart pressure pot outfitted with 15-25' lines and a good pressure feed gun is all you need.
Is anyone successfully spraying from original poster "2k poly, SW precat (~5 gallons/week) and conversion (clear and pigmented), to cheap waterbased poly coatings." Out of the Graco 9.5 or accuspray system?
I have sprayed all those materials except 2k poly successfully from a Graco 9.0 turbine mated to a Accuspray 10 spray gun ( and I don"t see why 2k poly would be a problem as I often spray small batches using a gravity gun in my shop). Is it as easy or as fast to get professional results as a AAA set-up or a compressor driven pot/top quality spray gun set-up? no. but can it be done? yes.
Hello I'm using a Kremlin EOS 15-1 with hopper and Kremlin single pass 110v heater. Spraying Kem Aqua plus. Really like this setup and WB lacquer
CAT Gravity Jaguar for waterborne and small jobs; Kremlin 10-14 for Solvent materials. Can use the Kremlin for waterborne using their special tips.
I use a regular HVLP gravity feed gun
We've got the pump. For smaller jobs we run a 2 liter pot and/or 4-5 hvlp high transfer gravity guns. Good cheap guns from Astro/Star. They are labeled for each type of product. Oil, solvent, wb clear, wb pigment, stain.
We have a good Binks gun, but honestly it doesn't spray much better. We use that for things like 2k and spend plenty of time cleaning it.
Cross contamination is the killer with so many different chemistry.
You don't need a massive compressor. 80 gallon 5 hp they are just over $1000 new. Don't bother plumbing it. Use a really long 3/8 hose and high flow fittings.
Compressor is way better than turbine. Gravity guns are way better than cup guns.
What about a series of 1 gallon pressure pots? You could set a bunch of them up for cheaper than buying a single piston style pump.
Run a line from your compressor through whatever pre filters/ drier filters you plan to use (if any). Then into an adjustable regulator to drop the pressure to the pots. (I say this because this is how I had to do it as my compressor puts out 175 psi and those pots are only good for 90 psi). Then into a manifold with quick connects. From there you split to each pressure pot which will have it's own adjustable regulator to control the gun pressure based on what you're spraying.
Into each pressure pot you drop a plastic 1 gallon bucket that you mixed your finish in if you need to catalyze or if not, put the can in the pot and start spraying.
This way you can have each pot labeled so you only run compatible finishes through it so there is no contamination.
I did this style set up because my main spray pump is a Wagner 40-15s that I only shoot CV, lacquer, 2k and other compatible finishes from.
I use one pressure pot to spray metal finishes from. One is used to spray stain. One is used to spray water based clear coat. Another is used to spray Advanced water based paint.
This way I don't have to worry about left over pigment messing up a clear coat finish etc. Even though I clean the guns/lines/pots well.
Like others have said, AAA for large jobs and I would use a gravity gun like a Sata for small jobs. As for brand I am a firm believer of buying the brand that has the best service. Nothing worse than having a pump that needs a seal and you have to wait for it to be shipped from the other side of the country. If you are in a large center with all the suppliers, the new Kremlins are the best. I have the 30:1 models and they spray anything you throw at them. There is nothing that compares to these pumps, you can turn your air down and you get almost no overspray. Most Systems you are spraying half of your product into your booth filters. Good luck.