PolyWhey® Exterior Penetrating Wood Stain


PolyWhey® exterior stains and water proofer provide beautiful protection of raised beds, decks, fencing, docks, outdoor furniture and siding.

Sterling Gray $0.00 Acorn Brown $0.00 Autumn Red $0.00 Lakeside Cedar $0.00 Caspian Clear $0.00 Charcoal Gray $0.00 Coastal Gray $0.00 Granite Gray $0.00 Bison Brown $0.00 Brackish Brown $0.00 Royal Cherry $0.00 Golden Cedar $0.00 Balsam Green $0.00 Garden Green $0.00


Product Details
  • The beauty of stain & the protection of a sealer
  • Delivers color & water proofer deep into wood
  • Protects against moisture and harmful UV rays
  • Available in quarts, gallons and five-gallon pails
  • Easy application-soap and water cleanup
  • Available in our original colors Caspian Clear, Autumn Red, Lakeside Cedar, Acorn Brown, Sterling Gray, plus NINE all-new colors: Charcoal Gray, Coastal Gray, Granite Gray, Bison Brown, Brackish Brown, Royal Cherry, Golden Cedar, Balsam Green, and Garden Green.
  • This product is not recommended on IPE, Mahogany or exotic wood horizontal surfaces
  • USE ON: Any new, pressure treated or weathered wood. If applied over oil-based or water-based stains, sand thoroughly to remove film build so the Penetrating Stain can penetrate the wood. Do not apply over finishes.
Product Information

Exterior Penetrating Stain Product Profile

Exterior Penetrating Stain Safety Data Sheet 

Exterior Penetrating Stain Color Sheet

Additional Product Information:
  • Use Two coats of finish for full protection. Second coat must be applied while the first coat is still damp (if the first coat fully dries the second coat will not be able to penetrate). This product is not recommended for use on IPE, Mahogany, or other exotic woods.
  • Do not apply when rain is expected in the next 48 hours.


  1. Stir well prior to use.
  2. Always test the stain on a sample piece of wood to confirm compatibility and desired appearance.
  3. If wood has been previously coated, sand to remove all film build to allow Penetrating Stain to penetrate the wood. Apply with brush, paint pad, foam brush or spray. Do not thin. Thinning will result in reduced product performance. Apply an even coat with the grain of the wood and maintain a wet edge. Coat the end grain of all exposed boards.
  4. We recommend two coats. Apply second coat while the first coat is still damp. Do not sand between coats.
  5. Apply when air and surface temperatures are between 50 and 80 degrees Fahrenheit and relative humidity of 40%-60%.
  6. Under normal conditions treated wood will be fully cured in 48 hours. One gallon will cover approximately 200-400 sq ft. depending on the porosity of the wood.

Additional information


Quart, Gallon, 5 Gallon


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