I have a new replacement 78-86 bumper cover and the box it was shipped in from 928 Int'l back in the 90's.

Is it supposed to have grey primer or is that something the buyer did? It seems like a crappy primer that flakes off easily.

 

What's your point? What has it and the box it came in been doing for the last maybe 19 or 20 years? The statute of limitations has probably run.

Is it time to do feet?

Jerry Feather

 

Easy trigger, he's not asking for a replacement or refund.

Mike, my new S4 one came like that also.

 

Same here. Sand and paint, works just fine.

 

My point was to sew confusion and get a response from paranoid types

I certainly wasn't just curious about painting my bumper

 

So do you sand away that gray primer? Mine doesn't seem like something you'd want to trust but then again I've never seen a new bumper.

 

If it flakes, it needs to come off.

 

Sand it off, Mike. You don't want it there.

 

That certainly appears true. Otherwise what does the box, the 90's and 928 International have to do with repainting a 20 year old (not new) bumper cover that has flaking primer or something else flaking off of it?

Jerry

 

It's about discussing things that I enjoy with fellow enthusiasts. WTH is your problem? If you don't like my discussion stay out of it.

 

Jerry, the impression I got was Mike was asking whether its normal for a New In Box part to have primer on it. Don't know why you're jumping down his throat for that?

Read his post. He asks one question only..

Mike - factory body parts come primered (e.g. Aero mirrors). After 20 years its probably been exposed to a range of environments, so just have it blasted off with a plastic-friendly media (walnut shells). Careful with sanding - if you sand into the plastic's skin it will deform.

 

Wow. Never saw it as a dig on 928 Intl.

Take it easy on the man.

 

The typed word is an imperfect medium for communication. I interpreted merely as an interesting aside that the part had been sitting around for a decade, kind of like the 928 equivalent of a small archaeological find. No more, no less. Carry on with the surface prep discussion....

 

Bingo. I dug it out from storage with plans for modifying it to be used on my racer in a special project and am excited that it's in the original box from 928Intl., it really does feel like uneathing a hidden treasure.
So I thought this would be enjoyable topic, fun and informative no doubt! I never imagined actually being left in a bad mood over it. Good grief.

 

Mike I have bought these new from Porsche before, that color of yours looks factory. As JHowell says if it flakes it must be removed. Also put onto the surface a piece of very strong sticking tape or masking tape. Does it remove the paint? If it does, sand it done bare. If not fix the obvious areas.

After that is done you may need (most likely) to plastic prime the bar. You must do this on bare plastic. Then with the primer (not the plastic primer) you should also add flex additive, if you don't any bump will crack the paint. So flex add needs to go into the primer and paint. That is, if the color is solid, flex add into that. If metallic just the primer and clear coat, not in the metallic. The flex add makes a big difference to the performance of the paint on these flexible bars. It also makes them much harder to sand. Add some soap to the water to help with the sanding.

Greg