drooman

Looking to save a UV baked rear S spoiler.. it's straight and un-damaged except for being very dried out. The pores of the upper surfaces have "opened up" a little, making them not as smooth as the non-UV exposed areas.

As the title of the thread states, I'm looking for real world experience on these. There are hundreds, maybe thousands, of products that claim they are great for this...but I'd rather not re-invent the wheel if real results have been obtained already.

I'd prefer not to buy a new one, if you check the prices be sure you are sitting down.
I'd prefer not to paint it either, but that's only because every one I've ever seen painted looks like sh*t

Thanks in advance, I'm sure many of us have worked through this challenge already.

buccicone

Truck bed liner. The smoother textured stuff.

Range Rover

I've had great success using Plasti Dip to revive front spoilers. I imagine it would be a good solution for rear spoilers because it should remain flexible. Before and after:

G8RB8

I assume the S4 is the same or similar material. I cleaned mine well with soap and water and slathered on Back to Black layer after layer for weeks every time it starting looking rough until it finally stabilized and wouldn't take up any more. It took almost three bottles. YMMV

drooman

Thanks guys.. however;

The rear S spoiler is a different material than the S4 front, S4 rear, and even the S front spoiler. The fronts are some sort of plastic hard surface material, and the S4 rear is quite hard also. The S rear spoiler is much softer and much more flexible rubber (like) material. I think this is why they do not respond well to paints, I imagine significant adhesion problems and thermal expansion issues with these.

You can't hand squeeze any of the other spoilers like this.

bureau13

I was using Back To Black on it for a while. It would look pretty good for a few days. When I had it off while the car was painted, I said **** it and painted it with some flat black trim paint. I think it looks OK. I gave it a couple coats, not too thick. It's only been a couple months, so I have no idea how long it will last, but it's been longer than the Back To Black. If it needs it again in a while I can do that...not that I really want to pull it off/put it back on again.

GT6ixer

Andrew, google "heat gun on oxidized plastics". I've never tired this technique but have been meaning to. I have no idea if it will work on the spoiler. Might be worth a try on a small inconspicuous spot.

U-928

I've tried this. Doesn't work. Too much rubber content i think. Works well on my old VW door trim and bumpers though.

Landseer

I used a tube of silicon dielectric grease.

Basically a longer chain version of what is probably in the thinner back to black referenced above. Dimethicone.

GT6ixer

That's good info. Yeah I was wondering if the rubberness of it would yield the same results. Now we know.

Ladybug83

nextzett 91480615 'Gummi Pflege Stift' Rubber Care Stick - 3.4 fl. oz

Matt Propson

Hey I know this is going to sound silly but black shoe polish works the easiest and looks awesome I ve been doing this for.over 20 yrs on various Porsche's I've owned

ptuomov

The rear spoiler material is different from most other materials used in the car. I think Porsche started putting rubber layers on the spoilers because they were afraid of American pedestrians walking into them and suing the car owner and manufacturer (realistic assessment). The rear spoilers have to be elastic and are basically rubber.

This is about the turbo tea tray:



Sorry about the image quality

SteveG

Rick (Wyattsride) did a revive on his '85 I believe with multiple apps of Back to Black. Whatever he used, you should ask him 'cuz it is pliable, etc. and you know he has a bunch of plastic trophies so there's that. I'm jealous.