Rated 5 out of 5 by Satisfied from Wood Knot and Resin Blocking Primer This is the second time that I have purchased the wood knot and resin blocking primer. It is the one product that I've found that effectively covers knots and retains coverage over time. I am very pleased with the results.

Rated 5 out of 5 by Anonymous from Truly amazing primer We own a 500 year old Devon long house built mostly of cob walls and original wooden windows so have to use paints and primers that complement these materials, F&B products have always given us the results we've wanted after using Wood Knot & Resin Blocker primer first on our windows followed by F&B off black they look truly amazing,,,,,, we'd never use anything other then F&B now!!