SEAL-ONCE NANO+POLY Mahogany wood sealer, 1 gallon outdoor use, brown

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

Size:1 gal

Actual Color:Mahogany

Key item features

Proprietary nanotechnology formula fused with polyurethane for maximum flexibility and durability.
Penetrates deep beneath the wood surface to form a lasting, water-resistant barrier at the cellular level, resisting rot, decay and cupping.
Water-based, eco-friendly, and ultra-low VOC formulation; odorless and safe for people, plants, pets, and surrounding landscaping.
Easy clean-up with soap and water.
Available in Clear and Ready Mixed Colors, including Coastal Gray, Light Brown, Natural, and more.
Suitable for decks, fences, wood siding, log homes, outdoor furniture, swing sets, pergolas, and more.

Specs

Rec. use
Residential, Furniture
Features
Scratch Cover
Cleanser form
Liquids
Household cleaner type
Wood Polishes
Product line
NANO+POLY
Product net content uom
Gallon

Current price is $64.98

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Sold by U-C Coatings

Fulfilled by Walmart

4.636363636363637 stars out of 5, based on 33 seller reviews(4.6)

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About this item

Product details

SEAL-ONCE® NANO+POLYTM Premium Wood Sealer combines our proprietary nanotechnology formula with the strength of polyurethane to provide 360° of safeguards. Now available in Clear and Ready Mixed Colors! The NANO creates a durable finish that allows wood to expand & contract, while the POLY adds surface safeguards against wear & tear in high traffic areas. - Outdoor Use Only

Proprietary nanotechnology formula fused with polyurethane for maximum flexibility and durability.
Penetrates deep beneath the wood surface to form a lasting, water-resistant barrier at the cellular level, resisting rot, decay and cupping.
Water-based, eco-friendly, and ultra-low VOC formulation; odorless and safe for people, plants, pets, and surrounding landscaping.
Easy clean-up with soap and water.
Available in Clear and Ready Mixed Colors, including Coastal Gray, Light Brown, Natural, and more.
Suitable for decks, fences, wood siding, log homes, outdoor furniture, swing sets, pergolas, and more.

info:

We aim to show you accurate product information. Manufacturers, suppliers and others provide what you see here, and we have not verified it.

Specifications

Brand

SEAL-ONCE

Rec. use

Residential, Furniture

Features

Scratch Cover

Cleanser form

Liquids

Warranty

Warranty information

U-C Coatings, LLC makes every effort to maintain uniformity in our products from shipment to shipment. However: (1) wood and material behavior can be different from species to species or compound to compound, and will change due to weather, temperature, and other environmental factors. (2) U-C Coatings, LLC has no control over how and when our products are used. Therefore, U-C Coatings, LLC cannot guarantee product effectiveness. U-C Coatings, LLC warrants our products for a period of thirty (30) days from date of purchase unless otherwise stated on the packaging label. If the product is defective, U-C Coatings, LLC at our sole option shall replace the product or refund the purchase price. U-C Coatings, LLC shall not have liability for any other damages of any kind, whether direct, incidental, consequential, punitive or otherwise for any defect in our products.

Please be aware that the warranty terms on items offered for sale by third party Marketplace sellers may differ from those displayed in this section (if any). To confirm warranty terms on an item offered for sale by a third party Marketplace seller, please use the 'Contact seller' feature on the third party Marketplace seller's information page and request the item's warranty terms prior to purchase.

Warranty url

https://cdn.shopify.com/s/files/1/0861/7964/3679/files/Warranty_Image.jpg?v=1722346690

Warnings

WARNING: WARNING: This product contains chemicals known to the State of California to cause cancer and birth defects or other reproductive harm

Customer ratings & reviews

4.7 out of 5 stars

stars20 ratings14 reviews

How item rating is calculated

Filtered and sorted results would be available on the new 'Customer ratings & reviews' page.

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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?

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?

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?

reply from uccoatings Team

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

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

Key item features

Specs

How do you want your item?

Try 30 days of Walmart+ for just $1!

About this item

Product details

Specifications

Brand

Rec. use

Features

Cleanser form

Warranty

Warranty information

Warranty url

Warnings

Customer ratings & reviews

Showing 1-3 of 14 reviews

Excellent Stain and Sealer

Deck stain

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