slihp Posted April 24, 2019 Share Posted April 24, 2019 HI some scumbag has scratched my truck so going to fix it myself. I know they are aluminium body so do i have to use a special primer before putting down the base coat (same for the plastic spats)? bear in mind it is already painted etc so not going onto bare alu... Quote Link to comment Share on other sites More sharing options...
Eightpot Posted April 24, 2019 Share Posted April 24, 2019 Etch primer only needed if coating bare aluminium - if a little aluminium shows through don't worry about it. You can get an adhesion promoter for plastic which helps primer get a good grip, but if the spats are already painted don't worry about it. If you just need to repair a scratch literally, you can get good results using the end of a darning needle or even a thin screwdriver tip to drag paint along the scratch, building up layers - tends to be easier than a brush if you're not used to using one. Quote Link to comment Share on other sites More sharing options...
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