While cleaning and prepping a roof rack today, snaped a few pics showing how 303 works on the black aluminum factory cross bars. The black finish on the cross bars was very dried out and parched looking.
We know it works great on rubber and plastic, but it also works great on this painted aluminum finish.
I applied it uniformly to the last 3-4" of the rail on the left in pic, then I wrote "303" with a Q-tip soaked in 303. There's also some misc stray places I touched the bars with my glove that had 303 on it.
Really shows the way it penetrates and "moisturizes" the paint. I do really wipe the metal surfaces down with a dry cloth to reduce any residual from causing fingerprints.
This stuff is just amazing!