[9Venom9]

can you sand the car down to the paint and repaint over the old paint as long as the surface is rough enough for the paint to hold? or do you have to reprimer?

[GTRaptor]

You can sand it down to the base coat, then depending on the type of paint the shop might need to add a coat of primer or stabilizer which will help the new base coat hang to the old one.

As i said depends on the brand/type of paint you want to use to repaint.

[9Venom9]

Thankyou!

[killamuh50]

dude what is this guy talking about, omg you can sand the car down and repaint over the old color you can sand the clear down and dont have to reprimer it and spray over the same base that was on the car. learn this there is one coat of paint the base then the clear over it. if you sand the car your gonna be sanding the clear you dont have to sand it down to the base coat. you can sand the clear spray the base over it then clear right back over it thats how they do blend jobs. say if you had a scratch in the fender you wanted to fix. you would wetsand the area around where you blending fix the stratch fill it with primer. blend the basecoat over the scratch so its fixed blend the 2nd coat back a little further into the fender so it (blends) which that 2nd coat you spray will be going over the (clearcoat) you wetsanded then spray a 3rd coat back over the scratch you fixed blend your spray a little further then the 2nd coat you sprayed. then once it flashes off. you hopefully you werent dumb like some people i see and you masked the rest of the car around the fender and covered the rest of the car to keep the overspray from going all over it. oh yea dont forget to cover the wheel too. then once you blended the fender and fixed the scratch you just reclear the whole fender and it looks brand new. as for painting over old paint yes you can do that only things you would wanna primer is say scratches or places you fixes body work etc. or you could take it to bare metal and build it back up with primer, but you figure thats just more work, so i think your wondering if you can paint back over the paint thats on the car without having a problem. sure you can and it wont be nothing wrong with it. i think some people on this site need to go pick up a dupont painting book from a body shop and read cause some of the answers i see to post i just wanna yell!! read a book get some experiece pick up a paint gun, wetsand an buff a car do something instead of leaving stupid posts. cause it just makes me mad reading them when people are looking for help nothing worst then bad advice. also when you sand the car down thats what makes the paint hold when you spray it on. if you dont believe me try to paint your car without sanding it and see what happens i bet million to one it runs right off the sanding part is what makes the paint stick thats why you wetsand the whole area around where you blend so when you clear it the clear sticks and stays.