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

strum456;19207 said:
Latley it seems that every time i spray something too wet i get what you are talking about here. It looks like BAD contamination but it is always somewhere i just sprayed too heavy.
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Eric is this with epoxy that's been induced for awhile? Take a picture if it happens again.
 
strum456;19207 said:
Latley it seems that every time i spray something too wet i get what you are talking about here. It looks like BAD contamination but it is always somewhere i just sprayed too heavy.
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For me it will only happen on the first coat, and I only get it with the white epoxy. I don't know if it is because the white is made differently. Probably not, I have the most trouble with white of any kind because it pretty much blinds me and it's hard to catch a reflection to see how its going on.
 
I love how this went from a "this product sucks" to a "thanks guys for educating me, problem solved" post.
 
i dont really think thats what perky meant. he was just overloaded with the " aw shit ! " there is nothing worse than chasing a paint problem. unlike mechanics we cant just unbolt it and replace it .
 
I use SPI because how it performs. But, this type of post is a big reason why I tried SPI. With all the false and negative crap you can find other places on the internet, it is pretty cool to get this much experience and knowledge helping out anybody with a problem. From a beginner (I'm on my second gallon), Thanks for all the input guys.
 
thats why i don't post on these sites cause it always gets turned around or turns into a fiasco . i have been doing this for 30 years. i had most of these problems solved a long time ago. i did not say this product sucked! i said i was having problems with it .if i thought it sucked i would not be using it.i have enough problems without using cheap shit. for those that helped me thank you very much again good bye
 
hang around perky , it gets better . if they get out of line i'll bite'em .
and for the record i've cussed every product ever made at one time or the other.
 
My favorite saying is, IF you have done everything 100% perfect, you mix any product and when you pull the trigger, there are a 100 things that can go wrong out of your control.

This is why I love the tech line and i will say right now, I get 5-10 calls a week with the exact same problem you have, either with epoxy or clear and can honsitly say, 9 times out of 10 it is air pressure (also related to size of tip) the other 1 time it is water in line.

In 99 I built my play garage and plumbed and piped the air right with an over kill of filters in line, two years ago went to epoxy the vette and a fish-eye mess, now I had overkilled everything on prep of this car, so cleaned the back of a reducer can and sprayed a coat of epoxy and fish-eyes all over, I knew at that point it was the air system.
Fact is, water traps wear and mine had evidently seen better days.
I bit the bullet and bought a DAD500 and added it after the other traps and an new hose, not a problem since.

My concern for you is you changed the hose but you may need to look at filter system as that hose will get contaminated real fast, if there is a problem,.
 
i would like to get a membrane but not in the budget right now . i took my water seperator apart about a month ago cleaned it rebuilt it and added another one in line .i put the rest of the epoxy on and 3 coats of prospray with a dash of hardner in it. i highly recommend it . sprays like the old dbu, kinda thick, lays out nice. not one fisheye. spray first coat of uv which sprays nice with iwata supernova 1.3 tip, 23 pounds at the gun, went berserk, fisheyes every where. darn it not the hose.
 
perky;19228 said:
i would like to get a membrane but not in the budget right now . i took my water seperator apart about a month ago cleaned it rebuilt it and added another one in line .i put the rest of the epoxy on and 3 coats of prospray with a dash of hardner in it. i highly recommend it . sprays like the old dbu, kinda thick, lays out nice. not one fisheye. spray first coat of uv which sprays nice with iwata supernova 1.3 tip, 23 pounds at the gun, went berserk, fisheyes every where. darn it not the hose.
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Had the Supernova been used with the old hose? Maybe its air passages are contaminated from the old hose?
 
It may have started with the base but the base usually will not show it.

Here is a band-aid that might get you through.
After compressor has set overnight, drain water out of tank.
Then in order from compressor drain each filter.
Then put a fitting in air hose and blow for about five seconds.
Out a new orange or black filter on your gun inlet but these thing I have found will only stop the vapors for about the side of a car and then need to be replaced. So buy a pack of them.
Add 10% of a fast reducer to the clear and up air pressure 3-5 lbs.
 
the last filter in my line is a toilet paper filter in the booth. i start with a new one on each car. i'm replumbing because they have a slight yellow tint now. that is oil vapor which means it's time to replace the lines. my compressor is 30 years old . when i replumb there will be new toilet paper filters close to the compressor so i wont have to flush as often if at all.
 
Perky, Did you use any fisheye eliminator in the recent past? I've seen where it's been used and everything that was painted for a month after had fisheye problems. Might want to change out the filters on the compressor also.
 
take the fitting off the wall where your hose hooks. make a barrel rod out of welding rod and hook some white cloth on it. run it into your air line. if it comes out yellow you have oil vapor. you can also blow air into a white rag . i have dealt with this before and it can drive you nuts. if you changed hose and got a couple coats fisheye free then it started again i still suspect your air supply. oil and water do mix and one small drop of moisture can explode out of the gun and trash a spot big as your fist .
 
I hate to sound like a broken record, but I really think this is most likely a case of application problems. The white epoxy lays out wet easier than most people imagine, especially the first coat. It needs more air and less material than a primer, it is more like a single stage paint, except instead of running when it is too wet, it gets really funny looking. I call it the "Swiss cheese look."

If you go look at Arrowhead's old post, those look more like a contamination problem to me than the problems experienced here by perky.

Just my 2¢, but I really think cranking up the air, screwing in the fluid, and keeping 6-8" away on that critical first coat will go a long way toward solving this issue.
 
perky;19228 said:
i would like to get a membrane but not in the budget right now . i took my water seperator apart about a month ago cleaned it rebuilt it and added another one in line .i put the rest of the epoxy on and 3 coats of prospray with a dash of hardner in it. i highly recommend it . sprays like the old dbu, kinda thick, lays out nice. not one fisheye. spray first coat of uv which sprays nice with iwata supernova 1.3 tip, 23 pounds at the gun, went berserk, fisheyes every where. darn it not the hose.
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by the time he got to clear he had contaminated the new hose. if not then why did he get the rest of the epoxy on then 3 coats of base with no fisheyes ?
 
Well, these kinds of problems can be tricky for sure. It's even hard to say if all the symptoms are the result of any one problem, could be several things acting at once or at different times. It's so important to get as many variables as possible nailed down, something that is very difficult to do in certain environments.
 
shine;19246 said:
by the time he got to clear he had contaminated the new hose. if not then why did he get the rest of the epoxy on then 3 coats of base with no fisheyes ?
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I agree with this.
 
crashtech;19245 said:
I hate to sound like a broken record, but I really think this is most likely a case of application problems. The white epoxy lays out wet easier than most people imagine, especially the first coat. It needs more air and less material than a primer, it is more like a single stage paint, except instead of running when it is too wet, it gets really funny looking. I call it the "Swiss cheese look."

If you go look at Arrowhead's old post, those look more like a contamination problem to me than the problems experienced here by perky.

Just my 2¢, but I really think cranking up the air, screwing in the fluid, and keeping 6-8" away on that critical first coat will go a long way toward solving this issue.
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I do not have the experience to add anything particularly useful here. However, don't overlook what Jon is saying. Swiss cheese....that is EXACTLY what it looks like when it happens to me. I've done it with black, and it only started happening recently. Instead of a run, you get swiss cheese. I have a small spot of this on a fender right now. I'll try to take a picture and share later.
 
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