how do i fix this. (paint is stuffed)

Wont buff out - too far gone.

You may get away with a light sand and some new clear - but if you go through the colour your shot and will need a complete respray on the roof. (colour and clear)

 

My dads vp did that, best thing to do is was just take it down to the local paint shop and get the roof resprayed, You can try and do it youself though, might be fun.

 

The paint should be rubbed down with wet n dry - use lots of water here.

Start with maybe 400-600 on the clear where it is thick. Were it has "burnt through" I'd use 800 on the colour.

Work on the thick stuff first as the edges will come good very easy.

AND DONT GO THROUGH THE COLOUR.

Hint when starting with a new bit of sandpaper give it a go on the thick stuff first to take the sharpe edge off.

 

I personally think it would be real tough to rub that down without going through the colour,i think your best bet would be to rub off all the clear and wouldnt matter if you go through the colour,if you dont sand off all the clear you1ll end up with "low" spots and "sink backs" all over the place and being a dark colour it`ll show up even more inperfections,no matter what you do i can guarantee you`ll need a new base coat.

 

Do a search on painting around here, there has been some threads done on this here before. Theres even one here somwhere on how to do it with rollers too.

 

remember to use a sanding block behind the wet and dry, otherwise you will get an uneaven surface.
Clear is not hard to paint with but as you are facing down you will need a gravity fed spray gun. You need to keep a single angle when painting and also keep the correct distance from the surface. There are some vids on youtube which will explain what im talking about. Also when u go to the paint show to get the clear ask him to show u the motion. If you have some scrap metal get some cheap paint (make sure its car paint) and practise on that for a while so that you can get the right motion without screwing your car first. You dont want paint runs or for the paint to look like orange peel.

Once the clear is on and looks good you must wait for it to try, i usually leave it twice whats recommend, that way im guaranteed to not **** up my hard work. When i start sanding i start on wet and dry 800, then 1000, 1500 then 2000grits. to get that good shine.

Seriously though mate, iv only ever painted one car and it was dam hard work. If you ae not comfortable doing it, then save the $$$ and get it done. Also remember to mask up anything u dont want covered in paint, windows, mirrors, anything in your shed.
I was also once told to ground the car so that dust wont stick to the car when painting, (mica and metallic paints cause friction on the car because of the metal flakes in them, the friction causes static electricity and it causes dust to stick to the car.
When i painted the car i bought one of those $50 plastic car ports, then covered the ground with a tarp and then tarped the entrance as well. No wind no dust.

Breathing apparatus is essential, im not talking about one of those cheap paper masks, i mean a dual filter huge massive one, The paint fumes are very very dangerous.

Back to cost for a second, getting a roof painted is about $350 at a Panel and paint shop
DIY

Air compression with enough flow for the gun, mine was $250
Paint gun = $100 (you can get cheap ones but dont)
Paint (clear) and thinners = $45-$60
Sand paper = $10-15 depending on what you get and how much
Painting tent/carport = $50-$150

So thats more expensive than paying for it to get done, and there is no guarantee it will look good and no warrantee on the work. Ofcourse you can do it cheaper than what i did, i painted an entire car in micropaint (so fine that i did 14 coats on the car)

PM me for some help