Yes, mask off the paintwork first with two layers of masking paper. Smooth off the old paint with 320 grit wet paper. You can use the rubbing down paper to either finish the prep all across or use wire wool, or red scotch brite.
When you're happy it's smooth enough, use red-scotch-bright with methylated spirits to get it all clean. You're finished with this stage when there is no plastic left shiny, it will all have a good "key" surface to accept the paint. Shiny plastic is no good.
Remove the masking. Blow out any water using compressed air if you can. Keep cleaning it with meths and a tea-towel stolen from the kitchen when the wife isn't looking, continue to blow it and clean it until it's clean and dry.
Seriously, go back and use meths. I know you don't have any, go and buy some. And do it again properly this time.
Mask it up again, and paint it.
Plasti-kote works well. You can get it in wickes. Other DIY stores are available.
|