PrimeSolution Control Primer is Premium Exterior White Alkyd Primer and Sealer Designed to Control Tannic Acid Leaching in Woods.
 
PrimeSolution Control Primer is a high-quality slow-drying modified linseed oil alkyd primer with exceptional adhesion and excellent hide.
 
This wood primer/sealer demonstrates great adhesion on a variety of exterior surfaces with excellent stain and mildew resistance. PS Control Primer is MPI approved to seal in tannin bleed, especially for woods like cedar and redwood.