epoxy arg !!!!!!!!!!!!!!!!!!!

I should have stated that on the horse trailer I mixed up the entire gallon and sprayed the first coat after inducing about 1 1/2 hours. Then covered the remainder until I shot the second coat the next afternoon. Sorry I didn't take any close up shots but it laid down nice and looks great - for an old horse trailer that is.
 
I have sprayed gray several times and had no issues.
I'm wondering about spraying with too little pressure? The reason I ask is, I have brushed the epoxy on in places and it worked great and flowed fine?
 
perky;19329 said:
let me ask this. when i started having problems i thought it was moisture cause i was getting a little moisture sandblasting so i replumbed my pipe and used teflon tape but i had some air leaks so i took it back apart and used pipe dope. do you think the pipe dope would have anything to do with it?
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I would bet this is a big factor. Pipe dope can have many different types of oil or wax in it. I did the same thing when I first set up my booth. Shot one panel. What a mess! As a last resort, I took the fittings apart and cleaned them with lacquer thinner. Reassembled with Teflon. No more problems.
 
It's definately the little things that can sometimes cause a lot of grief for sure!
 
i think it was a moisture issue. i checked the pipe dope and no silicone thank god . i ran another 30 feet of pipe with some risers and a motorguard filter. recleared the doors and the cowl yesterday with no issues. same hose, same gun, no gun filter. i moved my water seperaters about 35 feet from my compressor with a dedicated line just for spraying about 60 feet from my compressor . i hope that does it.
 
perky;19463 said:
i think it was a moisture issue. i checked the pipe dope and no silicone thank god . i ran another 30 feet of pipe with some risers and a motorguard filter. recleared the doors and the cowl yesterday with no issues. same hose, same gun, no gun filter. i moved my water seperaters about 35 feet from my compressor with a dedicated line just for spraying about 60 feet from my compressor . i hope that does it.
Click to expand...

Perky - you have really impressed me with your fortitude to find the problem and not blame it on the product.
You take an analytical approach to find the real problem and not just dismiss it as bad product, bad mouth the product, then disappear when you find the real problem.
My hat is off to you sir for your honesty and character.
 
glad you won :) remember that cheap toilet paper works much better than the motoguard filters do. i start with a fresh one on every job. i also replace it before clearing.
i will have one where the air lines inter the shop from the compressor . helps keep track of the compressor.
 
perky;19463 said:
i think it was a moisture issue. i checked the pipe dope and no silicone thank god . i ran another 30 feet of pipe with some risers and a motorguard filter. recleared the doors and the cowl yesterday with no issues. same hose, same gun, no gun filter. i moved my water seperaters about 35 feet from my compressor with a dedicated line just for spraying about 60 feet from my compressor . i hope that does it.
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Perky,

I'm neither an expert nor experienced amateur but I did manage to get dry air out of my system. My compressor has a water separator six inches from the tank and I have yet to get a drop of water out of it. Forty feet of 1/2" galvanized pipe with three drops takes out about a cup of water in an hour. I have the Harbor Freight version of the kitty litter dryer but I use silica gel instead of kitty litter. From the desiccant dryer, there's another 20 feet of 1/2-inch galvanized leading to the Motorguard filter (with a couple of 1/2" quick disconnects so I can bypass it). Copper pipe would be much more effective but much more expensive as well.

Compressor (with water separator)
NewCompressor.jpg


Pipe Run
AirSupply_0005.jpg


HF Dryer (discontinued)
AirSupply_0004.jpg


Motorguard JLMM-60 Filter
M-60Filter.jpg


The Motorguard filter comes in 1/4-inch and 1/2-inch fittings so be careful not to choke off the flow with the smaller model. This place seems to have them for a decent price:

http://www.automotivetoolsonline.co...Air-Filter-100-CFM-12-Inch-JLMM60_p_9420.html

Shine,

Thanks for the toilet paper trick. I have a few rolls of Scott 1,000 sheet rolls that should work just fine.
 
shine;19481 said:
by the way it is important to have one of these or some other filter close to the compressor.
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Shine,

I installed my first Motor Guard filter three feet from the old oil-less compressor using rubber hose. It was saturated with water within ten minutes. It worked real good getting water out of the air but way too pricey using those $16 Motor Guard filters. The install instructions for that HF dryer warned that it needed 25-feet of metal line between the compressor and dryer with at least one drop to collect the water. The water separator mounted close to the new compressor has a bronze filter inside to catch the big stuff. Like I said, no expertise here. Based on the advise I picked up on this site, the setup I have now is working pretty well.
AirSupply_0008.jpg
 
the first filter is for oil vapor. catch it here and you wont have to fight it in the booth. and i would turn it over.
 
Shine on the Motorguard are you saying upside down as in T-handle on the bottom, connections on the top????
 
I don't think It's been mention on this post but a Coalescing filter should be used first out of the compressor. That's the filter that seperates the air/oil. My Eaton compressor is on the third pump that is starting to pump some excessive oil. The first two were rod knockers and this one is an oil pumper. My coalescing filter keeps it out of the lines. The 340 quincy pump I'm rebuilding will replace the eaton soon.

Anyway, I'm an Epoxy only guy also and I get some fish eyes like those if I dump the first coat on really wet. Not as many but I get some. My cure is to just spray the first coat light to medium and hose the remaining coats. I never get them with anything but a thick wet first coat. For me it's easy enough to go slow the first coat.

This has been an interesting post for us at your expense. I hope you can keep the fish eyes away!
 
Brad,

Did you think picture that I posted looks like contamination or did I just hose it?

I thought I was doing the right thing by spraying my first coat very wet. I do the Shine method: spray 1 coat over 100 grit scratches. Then I bake it in the sun until I can sand it.
 
i painted the grill yesterday with epoxy, basecoat, then 3 coats of clear and no fisheyes. this is the first time i have sprayed the epoxy with not one fisheye . so i'm pretty sure it was a moisture problem . since i redid my piping i have not had one problem . i guess i have just been lucky before . sof , thank you for the comment. being honest has never got me a lot of money but at least i can sleep at night . i am way past being too proud to admit i am wrong . there is no such thing as a great painter . you just gain experience on how to fix your mistakes. very rarely do things go right .
 
i aint a great painter but i'm one hell of a detailer.......


takes time for that stuff to migrated to the gun.
 
perky, where in NY are you? It was about his time last year that I was having all kinds of problems too. It finally dawned on me after going though that nightmare, pretty much every time I've painted a major project, it's has been during the winter months so moisture was never a problem.

Last year, I was painting during a warmer/wetter season and was having all kinds of fish eye problems. My lame moisute control setup worked fine during the winter when it was dry and cold, but couldn't keep up when it got warm and humid out. I revamped my air lines/seperator setup and was fine shooting during humid season afterwards.

Sounds like you got it licked, great job!
 
i am about 15 minutes outside that fine trash heap called buffalo . my intake for my compressor is piped outside so it sucks cool clean air . i dont know why i was getting all that moisture . i never had the greatest set up for piping but i thought it was enough because i never had problems . i sprayed other products with no problems , then i would spray this epoxy and i would get a couple spots with fisheyes . i tried upping the pressure , not reducing , reducing , cleaned and then recleaned , cleaned my guns , cleaned my bench . i was getting pretty aggravated . i never give up . i should not have posted when i did but i just got done spraying the whole car and i was pissed . i will be reclearing the car today so i hope all is well . just as a side note i have had my eaton compressor for 7 years and if i didnt go in the back to drain it i would not even know its there . never had a problem with it . guess i got a good one.
 
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