SEAL-ONCE® is an eco-friendly, ultra-low VOC, water based stain and sealer for wood that offers high performance, long-lasting protection against water damage.

SEAL-ONCE® protects and stabilizes wood against water damage and decay for up to 10 years. It forms a flexible, breathable barrier that allows water vapor to escape and prevents warping and cupping.

The advanced technology of SEAL-ONCE® allows it to penetrate and bond to the cellular structure of the wood, forming a superior barrier below the surface to protect from the inside out.

Visit our Siding, Timbers, and Interior Application pages to experience our specialty manufactured products, all pre-finished with SEAL-ONCE®.

Outstanding Performance

  • Excellent durability to weathering
  • Excellent longevity; prolongs the life of treated wood
  • Inhibits mold, mildew and fungi growth
  • Can be used on properly prepared interior and exterior wood surfaces
  • Semi-transparent stains add color without hiding wood grain
  • Protects horizontal surfaces up to 6 years and vertical surfaces up to 10 years
  • Safe for use around pets, plants, people and marine life
  • Water-based, odorless, and non-flammable
  • Non-toxic, ultra-low VOC and safe for the environment
  • Safe to use around fresh and saltwater
  • Easy soap & water cleanup
  • Made in the USA

Common Uses: Decks, Railings, Shingles, Shake Roofs, Siding, Fences, Docks, Planters, Outdoor Furniture, Play Structures, Log Homes & Exposed Beams

For more information contact us or call (406) 215-4961