there really is no need to get it back to raw. if anything it is a bad move because it will give you less scratch resistance. for a really nice job, just sand down the original paint and then primer over it and carry on as normal. you can just sand it and go straight to colour but a lot of paints are transparent and you will see any painted on decals etc through it and it can change the colour a bit from what you are expecting. i have a bmx and i have sprayed it a countless number of times. the best and most solid times where when i just sanded down the original paint until it was matte all over and then did a few light coats of colour followed by at least a whole can of laquer. halfords paint is the best ive managed to get hold of in just your average shop. and another tip, lots of light coats are better than a thick one. it is annoying because of the extra time but the results speak for themselves
there really is no need to get it back to raw. if anything it is a bad move because it will give you less scratch resistance. for a really nice job, just sand down the original paint and then primer over it and carry on as normal. you can just sand it and go straight to colour but a lot of paints are transparent and you will see any painted on decals etc through it and it can change the colour a bit from what you are expecting. i have a bmx and i have sprayed it a countless number of times. the best and most solid times where when i just sanded down the original paint until it was matte all over and then did a few light coats of colour followed by at least a whole can of laquer. halfords paint is the best ive managed to get hold of in just your average shop. and another tip, lots of light coats are better than a thick one. it is annoying because of the extra time but the results speak for themselves