newb question about small bubbles and polishing technique

[myunghoon]

i got a little runny while using the spraycan and now there are little bubbles on one side of the car...will sanding with 2000 wet and dry get them out?

also...i can't really get my cars to shine after sanding the paint off a little. they stay pretty dull. could i be doing something wrong? i use polishing compound and rub it in a circular motion.

thanks.

[Vric]

Hi

For the small Bubble, it's becose your coat of paint was too tick. You should send it and repaint (just send the buble and make a mist coat over it)

Lets dry few days (at least 7) then try compound + wax

[JTRACING]

if you read the faq it shows you how to properly polish a car

http://www.automotiveforums.com/vbul...threadid=89313

[myunghoon]

^i did read the faq and i tried it like that, but it comes out dull if i just try to polish it after sanding it.

[JTRACING]

You dont sand the car, you just polish it with compound, i use automotive compound, which is harsh and will remove any orange peel and other inperfections, and leave you with a perfect finish, then you put a coat of nice wax on , like meguires
(if you have to sand, use really fine paper, 5000 grit to 12,000 grit then go over and polish it)
plan on spending a large amount of time on this to, just take your time and the results will come

[myunghoon]

^thank you. i didn't even know they had 5000 to 12,000 grit paper. i went to the auto shop and 2000 was the highest they had...i think.

where do you get fine sandpaper?

[nis.k.a.]

Don't go to the local auto shop for 5000-12000 grit. Go to the hobby shops or online hobby shops.

[Vric]

Well 12000 is useless

Coumpound is "like" a 9500 grit sand paper.. so over this, it's useless

[mike@af]

Originally Posted by JTRACING

You dont sand the car, you just polish it with compound, i use automotive compound, which is harsh and will remove any orange peel and other inperfections, and leave you with a perfect finish, then you put a coat of nice wax on , like meguires
(if you have to sand, use really fine paper, 5000 grit to 12,000 grit then go over and polish it)
plan on spending a large amount of time on this to, just take your time and the results will come

I am an automotive painter and I always sand the paint with 1500-2000.

[itrgtr]

sorry i am new too. i searched a bit and found this thread. im also in the same situation as myunghoon. my paint got a lil runny and there are some bubbles. this is only a small part of the car so i dont really want to strip the whole thing and redo it. i havent touched it yet. should i wait for it to dry, then sand and repaint that part? or use some thinner over it? or or any other advice?

[cyberkid]

Originally Posted by itrgtr

i havent touched it yet. should i wait for it to dry, then sand and repaint that part? or use some thinner over it? or or any other advice?

Vric basicly answered ur question. Let it dry, sand it, finally put a mist coat over it.
IMO :Never, I MEAN NEVER! use thinner over a spot that you want to repaint. Reason: thinner eats (dissolves) the paint away leaving you with " ditches" and smears, harder to fix than going straight to sanding and mist coating.

[itrgtr]

Originally Posted by cyberkid

Vric basicly answered ur question. Let it dry, sand it, finally put a mist coat over it.
IMO :Never, I MEAN NEVER! use thinner over a spot that you want to repaint. Reason: thinner eats (dissolves) the paint away leaving you with " ditches" and smears, harder to fix than going straight to sanding and mist coating.

thanks. i just wanted to make sure before i do anything to it.