I've started to paint my first batch of arrows but am having problems with the paint drying. I am using oil based paints but they seem to be to thick, I've tried thinning to the suggested ratio on the paint tin but after leaving to dry for over 2 days the paint still scrapes of with my finger nail.
What kind of ratio should I thin the paint to and does the paint need thinning every time I use it, because I had a few arrows turn out alright after thinning the paint but the next time I used it the paint was to thick again?