These special wood primers should be used under Storm System Stains. May be used under either Linseed Oil or Urethane Acrylic Latex Base. These coatings are designed to neutralize and help eliminate the natural tannin or sugar staining and discoloration produced by bare woods such as red cedar, redwood, fir, pine or white cedar and seal the wood for uniformity of the finish.
Recommended for use on: Clapboards, siding ,shingles, trim, shakes, hardboard
Pratt & Lambert