Ahhhhhhh Why?

[mhpspeed]

Painting is really starting to piss me off! the last three models i have been working hvae been ruined during the paiinting part, and cant fing any of this damn CSC shit u all tlak about to strip off paint so i have had to thorw them all out. I have done everyhting that u all have told me in the FAQ. ill get one light coat on that lloks good but by the 2nd or third coat i put it on a lil heavyier and all these little bubbles appear! i give the cars plenty of time to dry between coats, i also heat up the can and shake it alot. why is this happening? also u guys are saying u are putting somehting like 7 coats on, by 4 my panel lines are filled up! im about to just throw everything in the trash.

[TheSyndicate]

Bubbles? Are you painting too close? Are you making sure to wash the bodies with warm water and soap EVERYTIME before painting?

You don't need to throw out those bodies!

If you can't find CSC, look around at a automotive store for a "biodegradable degreaser".

[pre98zetec]

Originally posted by mhpspeed
Painting is really starting to piss me off! the last three models i have been working hvae been ruined during the paiinting part, and cant fing any of this damn CSC shit u all tlak about to strip off paint so i have had to thorw them all out. I have done everyhting that u all have told me in the FAQ. ill get one light coat on that lloks good but by the 2nd or third coat i put it on a lil heavyier and all these little bubbles appear! i give the cars plenty of time to dry between coats, i also heat up the can and shake it alot. why is this happening? also u guys are saying u are putting somehting like 7 coats on, by 4 my panel lines are filled up! im about to just throw everything in the trash.

This has happened to me soooo many times. CSC, its called castrol super clean. It is a gallon purple jug in walmart. Back by the oil and car parts and stuff. But for the paint bubbling ,sounds to me like there to much humidity and its causein orange peel. Try painting when the humidity isnt soooo high. AND 4 coats and ur panel lines are gone. My supra has about 2 coats of primer,6 coats of paint and 14 coats of clear and the panel lines are still very deep.So that means only one thing, UR using toooo much paint. I never aply wet coats. I just prime, mist coat,mist coat,mist coat,mist coat,clear,clear,clear. that all i do. I hope i helped u a little.
josh

[DSM-Mark]

Sounds like you're using too much paint. If someone puts 7 coats of paint on, I can guarantee you 5 of those have been pretty light.

Also, I've noticed bubbling can occur if you spray on too much paint and then change the angle you are painting at after it has had a minute or so to dry up.

Painting should involve a lot of prep work, and then very little time for actually spraying. Plan out how you are going to spray the body, considering that you want long sweeps across it (you are NOT going to EVER point and shoot, always sweep across). Make sure you can hit all the vital points with your stand and that you can get the body covered (if you like to cover it) very easily. Then spray the car (should take less than 1 minute) and don't worry if you don't get opaque coverage in the first shot (especially with metallics). When you have basically done what your plan set out for you to do, stop, and do NOT look back. If you do notice that you missed a spot, wait at least until the paint you just shot gets a little tacky (5-10 mins) or wait a few hours. Don't keep adding wet coats on top of wet coats continually. You'll fill in all the lines, and probably get runs.

This has been my take on it, so far, anyway. I may not be a master (yet) but I have turned out some decent paint jobs (IMO, anyway).

[TheSyndicate]

Originally posted by DSM-Mark
Painting should involve a lot of prep work, and then very little time for actually spraying.

That's the key point right there.

[mhpspeed]

I sand and wash the bodies each time. so it must be too much paint or to close, usally im about 6 inches away, and i do change directions alot, i ddint know that mattered. ill try it. thanks for all ur help, I knew i could count on u guys.

[TheSyndicate]

6 inches is too much. Try 12-14 inches.

[bah humbug]

I don't use CSC.

I use any brake fluid I can find (I prefer the cheapest)

They've all worked well for me.

[yellow15]

Originally posted by sk8ter_in_ny
This has happened to me soooo many times. CSC, its called castrol super clean. It is a gallon purple jug in walmart. Back by the oil and car parts and stuff. But for the paint bubbling ,sounds to me like there to much humidity and its causein orange peel. Try painting when the humidity isnt soooo high. AND 4 coats and ur panel lines are gone. My supra has about 2 coats of primer,6 coats of paint and 14 coats of clear and the panel lines are still very deep.So that means only one thing, UR using toooo much paint. I never aply wet coats. I just prime, mist coat,mist coat,mist coat,mist coat,clear,clear,clear. that all i do. I hope i helped u a little.
josh

sk8ter_in_my: do you just put mist coat for primer, paint AND clear coat? will the surface be very rough after that? or it's ok?

sorry to hijack the thread.


oh but yeah i use brake oil too and it works great! (damn bought some crap paint and need to strip the paint tonite )

[pre98zetec]

Originally posted by yellow15


sk8ter_in_my: do you just put mist coat for primer, paint AND clear coat? will the surface be very rough after that? or it's ok?

sorry to hijack the thread.


oh but yeah i use brake oil too and it works great! (damn bought some crap paint and need to strip the paint tonite )

i spary one mist and one wet coat for primer.
josh

[hirofkd]

There're so many different way to paint right, and it's a matter of finding the method that suits you.
Some people only coat once or twice, and in this case, you have to know the right amount just before paint start to run. The motion to move the spray can is relatively slow, and the distance is short.

I prefer adding 7 or 8 mist of coats, and let each layer dry. Each coat is added by moving the can from left to right to left in about 1 sec (0.5 sec each), and the distance is about 25 cm. This will cause orange peel after 7 coats, so I use 2000 grit sand paper to smooth the surface. The surface will look hazy, but continue wet sanding with 4000 and above sanding abrasives. Then, I use compound to get rid of the hazy look of a sanded surface.

The key is to keep trying. I scraped more than 7 models, (which I still have), until I'm satisfied enough to show my model to someone.

[bah humbug]

Originally posted by hirofkd
Some people only coat once or twice, and in this case, you have to know the right amount just before paint start to run. The motion to move the spray can is relatively slow, and the distance is short.

I do it this way. But B4 I do those two heavy coats I do 1 mist coat.

The only thing is it will always end up with a little orange peel.
Which needs to be sanded then polished out.

[nornicle]

when using tamiya paints, I find that if I shake the paints even a little too vigorously, I will indeed get paint bubbles.. esp if its warmed paint.

what I do is warm it up, and then swirl it for around 2 minutes (actually watch a 3rd hand on an analog go around twice... it seems too long!)

no paint bubble issues here!!! just my need to do too much paint in one go which is my down fall

[exhaust smoke]

Shocker!

I think many of us have had paint issues now and then. Can you retrieve the bodies you threw out? I recently tried stripping the paint off using plain old brake fluid from Castrol (can't get the CSC stuff here in the UK). It's great! Just leave it to soak and watch the paint melt off! Give it a scrub now and then with an old toothbrush to loosen the paint/decals. The whole process should take a few days to get back to the plastic.

[jimbob]

sounds to me like ur putin too much paint on in one go - this causes the solvent to try to escape through the surface of the paint when it makes contact with the body of ur model.

As said move further away from the model and apply lighter coats.

The biggest thing people do when painting is to try to get full colour cover in one hit - Its the biggest mistake - Be patient light mist coats will eventualy be full cover.

What paint are u usin and what are ur conditions like?

JIM