I have it on the majority of the topside of my Johnsen skiff. Easy to apply with roller. Very easy to touch-up (storm damage). Makes a nice sharp line next to paint. Cool and easy on bare feet. The only thing I would do over is have it tinted darker.I purchased from Bateau they sell 4 colors. This is the first boat that I have had non-skid on so weigh that in.
The manufacture states, or used to state, that custom colors can be created with kiwigrip by taking their product to your local paint store and having them add pigments. Check their web site to see what the guidelines are. As I recall, they only suggest that you only use light flat colors for pigmentation.