Anyone using Otter Fibre Color? Just got some of these recently because I wanted to colour my dashboard and door trims to the color of my liking. I found it quite hard to dry. Is this a normal issue? FYI I did not dilute the gel, just using it straight and applying using sponge and brush. What about using it on inside door handles? Will it feel sticky after it has dried or not? I hope anyone with experience can help resolve my issues here. Just want to find out on any known issues before...