cj miller Posted May 24, 2019 Share Posted May 24, 2019 So I decided to repaint the interior plastic of my car doors as they had several scrapes. Unfortunately the paint that I used is starting to peel off. Is there any kind of protective coat I could apply to prevent this? Thanks in advance. Quote Link to comment Share on other sites More sharing options...
eddie eastwood Posted May 24, 2019 Share Posted May 24, 2019 Did you rub down and use a primer made for plastics Quote Link to comment Share on other sites More sharing options...
cj miller Posted May 24, 2019 Author Share Posted May 24, 2019 2 hours ago, eddie eastwood said: Did you rub down and use a primer made for plastics Rub down? I used a few coats of acrylic paint as a primer and spray paint for plastics. Quote Link to comment Share on other sites More sharing options...
Gymfocused Posted May 24, 2019 Share Posted May 24, 2019 7 minutes ago, cj miller said: Rub down? I used a few coats of acrylic paint as a primer and spray paint for plastics. I think it's coming off because the surface wasn't prepared properly. Quote Link to comment Share on other sites More sharing options...
cj miller Posted May 24, 2019 Author Share Posted May 24, 2019 6 minutes ago, Gymfocused said: I think it's coming off because the surface wasn't prepared properly. Ok, so what would;d you suggest I do at this stage? Quote Link to comment Share on other sites More sharing options...
eddie eastwood Posted May 24, 2019 Share Posted May 24, 2019 you need to rub it down and use a primer that's made for plastic surfaces look on the likes of eBay or ask in a motor factor/paint supplier Quote Link to comment Share on other sites More sharing options...
JW1982 Posted May 25, 2019 Share Posted May 25, 2019 If the plastic material of the door panel was previously cleaned/maintained with some silicon based product is is almost impossible to apply paint. The silicon prevents the paint from bonding properly to the surface of the plastic. After a theft attempt my door panel did have several scratches caused by the broken glass. A specialist did try to repair the door panel but because the silcone products that were used by the dealership or previous owner invvisible repair was not possible. The repair products did simply not bond to properly to the plastic material of the door panel. At the end my Insurance approved to install a (very expensive) brand new door panel. Quote Link to comment Share on other sites More sharing options...
cj miller Posted May 25, 2019 Author Share Posted May 25, 2019 19 hours ago, eddie eastwood said: you need to rub it down and use a primer that's made for plastic surfaces look on the likes of ebay or ask in a motor factor/paint supplier Can you clarify what you mean by "rub down"? Quote Link to comment Share on other sites More sharing options...
eddie eastwood Posted May 25, 2019 Share Posted May 25, 2019 Rub down the old paint with finest grit sandpaper you can get hold of, best bet would be what is called the wet and dry type. https://www.ebay.co.uk/sch/i.html?_from=R40&_trksid=p2499334.m570.l1311.R4.TR12.TRC2.A0.H0.Xwet.TRS0&_nkw=wet+and+dry+sandpaper&_sacat=0 Quote Link to comment Share on other sites More sharing options...
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