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Quote:
Originally Posted by sweet tea man
if yo're hand sanding it, start with 220grit to remove a good bit of it. spray your adhesion promotor next and follow that with a high build primer with some flex added. sand down the primer with 320 and reprime if you need.
final sand with 600 throughly. seal, and base/clear.
if its small pieces typical paint mixes 1:1. so if you order half a pint, you'll have a pint sprayable. but check with them to see how theirs mixes
I am doing mine now.. I am not new to the seen of painting.. these pieces are a bit of a pain to sand.. even with 220 grit it's a pain.. get as much as you can sanded down till it's very slightly porus.. you can then use high buildup primer, just try to do a good job sanding so you dont ove do it with primer.. no need for a promotor, no need for a flex additive, most quality clears have it in them. these are small pieces, and rigid it is not needed.. the flex additive will also effect the final color as well.. but alot of people hear the word plastic and the next word is flex additive.. if your worried about chips, you can get an additive for that.. 400 wet sand is good, very good.. many will say 600 for heavy metallics and candies, I agree with that.. these panels have not yet been wet sanded, I am hoping to get a chance to paint them by next weekend..Quote
be aware that that type of plastic is really hard to get a good long term adhesion to. Flex ahh the secret behind flex additive it's actually used for parts that are flexible and will contort during install mostly used on bumper covers otherwise it will dissapate over time it is mainly to allow more flexibility in the paint during install. Take the advice on the primer if you overdo it it will make it more open to chipping and cracking. and as for the wet sanding any of the above shoudl work I usually go with 500 somewhere in between but it also depends on how much and how fast you want to knock down the texture. just take your time and follow whatever paint line you choose mixing directions you should be fine.