I have been having trouble priming some hardwood boards. The primer goes on fine, but after about 15 minutes, it begins to take on a mottled appearance and you can see the wood again. So, either the paint is pooling and migrating into clumps or it is getting absorbed into the wood, not sure which.
The wood is supele and the primer is an finely ground oil based base coat made by Fine Paints of Europe.
What is going here and what should I do if anything to correct the problem?