Racinfan83

I have a 90 ZR-1 with that textured black plastic air dam under the front. It has some scuffs and scratches in it that I would like to remove. Anybody know how to get them out? (Other then buy a new one.. )
Some way to sand it or something without making it look like crap?

0Killrwheels@Autogeek

This is a challenge that has long been the issue with detailing. Any polishing will often change the color, texture, and sometimes the look of air dams and other under carriage items. It is often suggested that a good protectant or trim dye is best to reduce the appearance of scratches. I know of some that find it enough of an issue that they replace the offending piece with a new OEM replacement part.

Racinfan83

Yeah there are some pretty good scratches in it. I keep it dressed - and I'm probably the only one who notices since I won class in 4 shows last year - but it's one of those things that drives me nuts..lol
Will look into pricing on new ones...

Well I answered that question. I figured a new one would blow up my wallet like everything else I've bought. Not so. Found these for $49: http://www.ebay.com/itm/corvette-front-spoiler1985-1990-new-3-piece-set-air-dam-/361295342713?hash=item541ee16c79

0Killrwheels@Autogeek

I hate to say it, but information is the key as some items are still cheaper at replacement versus repair especially when you figure in the time and value of the work.

mike100

I've been told to not scuff these plastic trim items with sandpaper, but to use scotchbrite pads. There are various cleaners and solvent prep for plastics that you use right before painting. Use a flexible bumper coater like SEM products. However, on a piece that will take abrasion, I can't say how the paint will fare after contact with the street. You might get good results by just scrotchbrighting the gouges to get a uniform finish on the part. The aftermarket 3 peice replacement is $50 so there's that.

cmonkey713

What I have done is use Scotchbrite to smooth out the roughness and then spray them with Plasticoat. They look new and pretty durable.