Best gun for Primer filler / sealer & Epoxy Primer?

I use a Devilbiss tekna primer gun that came with a 1.4 and a 1.6 fluid tip, The 1.4 sprays epoxy and epoxy sealer as slick as glass and the 1.6 does a great job with SPI regular build primer. I have a harbor freight gun that I drilled the tip out with a 5/64 drill bit then use the needle to chamfer the tip, I use the purple gun on small jobs and it actually does a good job with build primer.
 
For spi epoxy I recently use my titan 6 stage sprayer at work, which I didn't buy for automotive paint. Other than overly tired user error & possibly the 3 year old epoxy is a little less than perfect, it sprays pretty good with it's pressure assisted gravity feed gun. Definitely less fog than the 1.8 vapar gun. I can see where even a low production shop would be better off with not having a cheap gun for epoxy, especially for sealer coats.
Now for the poly primers you really do have to sand a lot anyways & really have to be careful not to have mixture drying in gun, so even for a production shop an expensive gun would be less important for it. Last week I mistakenly grabbed a 1.8 vapar thinking it was a 2.3. took forever to spray what I mixed & last part started drying in gun. I then remembered I had last used an old canister gun I enlarged spray tip on for evercoat poly. Had a 10 pack of canister bags to not have to clean out canister. May try a larger tip set in the titan turbine sprayer. The pressure assist , which the accuspray guns also have, really helps push thicker stuff & not fog the air as much.
 
Tried the titan hvlp capspray 115 today with featherfill g-2 using the #5 tip set. Pic is extreme close up , much smoother in real life.. Definitely sprayed it easy without much fog in the air if you hold it back to thin coats.
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I'm a novice painter and I have a Devilbiss Starting Line paint gun. It worked great with epoxy and the 1.8 tip but I had problems with high build primer. I'd like to get a cheaper gun with a larger tip for the primer. There seems to be a lot of choices with a 2.5 tip. Is that too big?
 
the 2.3 has been replaced by the 2.5 i believe . heavy build like slicksand will shoot fine through a 2.3 - 2.5 but will dry shoot though a smaller gun causing all kinds of problems .
 
for primer filler had a green gun 2.0 for 20 on sale from harbour freight. was pretty happy about it for 2 years. but last month our shop hired a new bondo guy, and he asked to use my gun once to primer. and boy forgot to clean the gun from primer.... never felt so disappointed in humanity
 
Shine, are you saying the Vaper 2.3 is ok for high build but not good for regular 2k primer? I'm specifically buying it to shoot SPI high build 2k primer.
 
i'm a hobbyist but appreciate decent tools. I used to use a FLG4 for primer but did not like it at all, recently bought the Devilbiss FLG5, aka "SGK" and it is night and day better than the FLG4 but still inexpensive ($140 shipped from the UK? I forget) despite being made in the U.K.
Using the 1.4 tip it sprays unreduced SPI epoxy like the proverbial "glass" although that's probably more a reflection on the SPI epoxy than the gun. The 1.8 tip will do primer/surfacer. Great gun for the price, and very versatile when you buy the second needle/tip.
 
There are lots of other vendors that sell them for less. Speedway motors, Summit racing, etc.
Google= Titan 19023 for the one with 2.3 tip.
 
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