Best way to clean rear glass rubber?

Title says it all.
Hate the splotchy water spot look and want it to be uniform and clean.
All tips and tricks welcomed.
Thanks,
Doc

 

I have the same issue on all the rubber window seals. Someone suggested using a degreaser like Simple Green and a Mr. Clean Magic Eraser as it worked for them.

The cause is likely mold and organic contamination of the rubber.

 

I gave up on trying to get mine clean.
It always comes back.

You can look here for some tips.

https://www.tacomaworld.com/threads/oxidation-or-mold-on-window-trim.663986/

 

That's unfortunate.

 

I’m parked outside 2/47 - 365.
I going to guess that this doesn’t help.
It seems like most all Tacoma’s get it to some extent.
Some worse than others.

 

Same here. I'm going to find out how much it would cost to replace the rubber seal; even if the mold returns, at least the new seals won't look like what they do now.

 

Just did my rear glass seals with some 000 steel wool lubricated with some car wash soap, worked great!

 

I treated all the seals once with some silicone spray, and that immediately darkened them while removing residue. Now I just use Back to Black about 1-2 times per year.

 

I took a scotch bright bad and simple green and in the same direction I scrubbed the seal. It gives it more of a flat black look but gets rid of all the imperfections.

 

I clean it as best as I can then put product on it I use on my motorcycle called Pig Spit. The Pig Spit gives it a nice clean black finish.