I've taken on the challenge of painting my knotty pine room. Its been sanded and I've used wood filler on the knots to fill in all the cracks. :thumbsup: The reading i've done about this says to use 2-3 coats of oil based primer to prevent and stains showing up. I've done 1 coat using Kilz oil based. I was wondering if i did my next and last coat with latex primer if that would work also? As of know I see no knots through the primer. I am having a hard time using such a stinky product. I've always used no or low voc paints.