I used 2 parts pearl grey, 1 part flattener, 1 part brushing converter, ( all awlgrip ), and colloidal sillica mixed to a peanut butter paste. Brushing it on....
You only need to mix a tiny bit to cover the area you want to repair. I always end up mixing to much.
pearl grey was the closest to the original deck color, it is a bit lighter than kingston
(which is my hull color) and also a little warmer in tone.
I'll try to get some pics tomorrow....