Removing solvent marks on front fender

I would test an inconspicuous spot on the fender with a very mild solvent like 90% rubbing alcohol (isopropyl alcohol.) If it doesn't change the finish on the good part, then I would try it on the stained part with a cotton swab. Again, just a tiny area to see how it reacts. If both those tests go well, then I would clean the whole fender with it.

If it doesn't pass those two tests, then I would do the same thing with plastic safe car "wax" like Turtle Wax Ice. It's designed to work well on paint, plastic and rubber:


Good luck and keep us posted!

Shoe polish?

I'd lay a wrap over it, carbon fiber look - or whatever color you like!

Try Pig Spit if available in your country. I've used this on faded black plastic, gloss or matte finish. It works on other raw plastic on my bikes with great results. But you have to keep re-applying after every wash.

Pig Spit at Amazon

I'd try rubbing some brake fluid on it, if that is a non painted plastic surface.

I would try the stuff at auto accessory places for restoring faded black plastic.

Thanks all of you for your advice, i'll check these products

I'd think about removing the fender and wiping it down with the solvent I spilled on it in the hope it would end up a uniform shade of fade.

I don't know if it would work or not on solvent stains but I've "restored" old black plastics that have faded to gray over time by using a heat gun on it. It's easy, pretty fast to do. Don't stay in one place very long, keep moving the heat gun. It sort of starts to "liquify" the plastic back to it's original color. Once I do that and it cools I put something like black magic on it. Turns out great. Search it on youtube.

Yep the heat gun will bring the oil in the plastic to the surface and just may work.

You could remove it and experiment on the under side

I would leave it that way
Before you know it it will end up with a new bike 😁

If NOTHING works, then maybe use a little of the same solvent on a Q-tip. Take the spillage marks that are there and transform them into something - I don;t know, a Joshua Tree, shrub, tribal tattoo symbol, whatever.

Ok, I'm kidding, but only a little. If you can;t fix it, make it beautiful (or handsome)

I managed to shoot some brake cleaner onto the grey side cover plastics on my bike, the nozzle was not pointing in the direction I thought it was... whoops! It's left me with a weird patterned pale mark similar to yours. I tried vigorously rubbing it, along with some automotive polish/compound, to no effect. I also tried a dremel with polishing wheel but the tiny bit I tried that on looked bad as it quickly removed the patterning.

It's covered pretty well with some automotive tyre shine / bumper back to black. If you look really close, you can still see it, but not from any kind of normal viewing distance. You will have to cover the whole mud guard to get it the same shade, and I would be cautious about ensuring you don't get any on your tyre...

Buy a fender off eBay.

Take the fender off and take it to an automotive paint supplier to have it scanned.
The price of paint and professionally applied paint job will prolly be the price of a new fender.

Get a nice decal to hid your mistake.

Looks great! Good job.

Bravo.