Fish Eyes

[ejdave]

Im touching up a few things atm, and no matter what I do, it seems to end up with fish eyes all through the finish
Im just using a pressure pack Black Rustkill.
At first I throughy cleaned the surface with wax and grease and gave it a quick coat over the old surface, was full of fish eyes, so I sanded the whole thing back to bare steel, cleaned and painted, same again.
sanded it back to steel, clean and etched primed. Primer went on fine, but the black top coat was full of eyes again. I tried it with a different brand paint, same result. This small simple job is driving me insane.


Dave

[HPaddict]

try putting on a few dust coats first making sure it drys a bit between coats then a finish coat, heavy wet coats will just make it worse

[Darkness77]

^ what HP said.
Are you using the same stand to hold the parts? Enviroment can have a lot to do with the outcome. Wash your hands with a moisture free soap, use new clean rag to prepsol the parts. Pour the wax and grease remover onto the rag, don't put the rag onto the top oh the tin and let it soak in. If you eliminate any chance of contamination you should do fine.
Oh yeah, nice dry coats to start with.

[rosco]

Hi Dave,
I guess I've just been plain lucky with this one.... I haven't had to correct this problem with acrylic.
I did have it once, but it was enamel - just a "hobby" paint job for someone.....

In all the literature I have read, this problem arises from contamination - either in the air lines, the substrate, the existing paintwork or the paint itself....

I understand that you have used a prep wash - and most likely followed the instructions to the letter.
This wash must not be allowed to dry on the surface - but is wiped on with one clean and lint free cloth then wiped off almost immediately with another... work in small sections.

If it is the paint which is at fault, purchasing another can from the same shelf may very well prove that the "batch" is sour....

I understand that you have stripped it to bare steel and the same fault occurs... this baffles me - and I share your frustration - there will be reason... perhaps your prep wash is contaminated....?

Another problem often associated with fisheyes is silicone contamination.... that stuff is almost impossible to remove completely....
Most people who commence a paint refurb simply wash the dirt from the vehicle and dry it.... then get out the sanding block and start to grind away into the paint......
I was taught to first wash the paintwork, dry it - then completely clean it with prep-wash..... to remove silicone from polishes and waxes etc.....
If you start grinding away without doing this, the silicone will be ground into the surface..... sometimes even into the metal itself....

Most painters "hate" silicone..... I do not believe Mequiars use any in their protection systems... but stand to be corrected....

Hope this helps, let us know when (not if) you achieve success and what you changed to effect it.....

frats,
Rosco

[Craig]

I'm not very knowledgable on this subject but had the same problem painting the steering columb on our wagon after stripping the paint several times I finnaly got it more good luck than good managment
About a week later I read something about cheap wax and grease removers being just turps and causing this problem

not shure if this helps but it might

[EK JAY]

If you have been spraying that tyre shine stuff
anywhere with 20m of your house that stuff will
get all over your parts; car ;house where ever the wind takes it
its silacone and that cause's fish eye's had the same thing painting
the green sedan i was using a spray gun so i just got some silacone
drops to ad to the paint and that stoped it since your using a can im
not sure what you can do other then thin dry coats to start with then
sit the can in some warm water for about 5minutes before painting top
coats and shake the can well

[bootlegger]

Sounds like the panel has been contaminated with silicon. Its usually in Armour All but like the previous post in tyre shine.

Wash the area with degreaser and then wipe it down with thinners.

If you were spraying with a gun you can buy silicon drops to mix with the paint.

Fish eye blisters are really hard to get rid of. Even with what I have said its still comes back.

You can also try to primer it first letting it dry completely.

[ek61]

http://cgi.ebay.com.au/MOTOSPRAY-NEW-An ... 1001r11719

u can buy them from any paint shop ive used them b4 to eliminate the same problem

they work welll

cheers dave

[ejdave]

Rubbed it back again to bare steel, bought new primer, good prepsol, did everything right, cleaned it with a new rag, and it happened again.
Even after I gave it several light dust coats.
Threw the part into my back paddock, and got another from the wreckers that I cleaned up and painted with no fisheyes at all.

Guess the other one was just cruzin for a bruzin!
Thanks for the help though guys!
Will be getting some of those silicion drops for when I do more painting. Thanks for the link...fish eyes are soo damn frustrating!

[matches]

i found i got fish eyes whenevr i painted over areas i'd rust converted if i didn't get every little remnnant of the converter off again before painting.

[rosco]

Thanks EJDave,
I'd probably have taken a different line of attack than yourself - there's something on that part which is causing it.... yes, frustrating.... but I'd continue to work with it until I found the issue..... even if it meant keeping it on a shelf for future attack.....

There would be reason for it..

Glad you have succeeded in overcoming the issue....

frats,
Rosco