SEAL-ONCE Black NANO+POLY Premium Wood Sealer, 1 Gallon - Outdoor Use
SEAL-ONCE Black NANO+POLY Premium Wood Sealer, 1 Gallon - Outdoor Use
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SEAL-ONCE

SEAL-ONCE Black NANO+POLY Premium Wood Sealer, 1 Gallon - Outdoor Use

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Size:1 gal
Actual Color:Black

Key item features

  • Advanced Formulation: Features a proprietary nanotechnology formula fused with polyurethane for maximum flexibility and durability, penetrating deep to form a lasting, water-resistant barrier.
  • Eco-Conscious Design: Water-based, eco-friendly, and ultra-low VOC formulation, ensuring it is odorless and safe for people, plants, pets, and surrounding landscaping.
  • Comprehensive Protection: Provides 360 protection against rot, decay, cupping, wear, tear, UV fading, water damage, and mildew, allowing wood to naturally expand and contract.
  • Versatile Application: Suitable for a wide range of outdoor wood surfaces including decks, fences, wood siding, log homes, outdoor furniture, swing sets, and pergolas.
  • Color Options: Available in Clear and various ready-mixed colors such as Coastal Gray, Light Brown, and Natural, to protect and beautify wood surfaces.
  • Easy Maintenance: Allows for simple clean-up with just soap and water after application.
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Current price is $62.98
Price when purchased online
  • Free shipping
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Arrives by Thu, Jun 18
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Sold and shipped by U-C Coatings
4.647058823529412 stars out of 5, based on 34 seller reviews(4.6)
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4.7 out of 5 stars
stars22 ratings14 reviews
How item rating is calculated
  1. 5 stars82% (18)
  2. 4 stars9% (2)
  3. 3 stars5% (1)
  4. 2 stars5% (1)
  5. 1 star0% (0)
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Showing 1-3 of 14 reviews

May 26, 2026
anonymous
Item details
Size: 1 gal
Color: Bronze
Sold and shipped byU-C Coatings
5 out of 5 stars review

Verified Purchase

The product work better than expected. I'm glad I made my decision on this product.

Incentivized Review
Helpful?7H76OXN37RMS645409829
reply from uccoatings Team

Thank you for your feedback, we’re happy to hear that this product worked well for your application!

Nov 6, 2025
Chris
5 out of 5 stars review

Seller Verified Purchase

Excellent Stain and Sealer

This is one the best stain/sealers on the market. It goes on easy, clean up is easy, and lasts a long time. The color tint is excellent.

Review from UC Coatings
Helpful?7H76OXN37RMS645409829
May 31, 2025
kathleen
Top Reviewer
Item details
Size: 1 gal
Color: Brown
Sold and shipped byU-C Coatings
5 out of 5 stars review

Verified Purchase

Deck stain

Yes, “Seal Once”…once a year.

Helpful?7H76OXN37RMS645409829
reply from uccoatings Team

Thank you for your feedback, we’re happy to hear that this product worked well for your application!