Seal-Once Nano+Poly Penetrating Wood Sealer with Polyurethane - Premium Waterproof Sealant -1 Gallon & Clear
Thumbnail 1Thumbnail 2Thumbnail 3Thumbnail 4Thumbnail 5Thumbnail 6Thumbnail 7Thumbnail 8

Seal-Once Nano+Poly Penetrating Wood Sealer with Polyurethane - Premium Waterproof Sealant -1 Gallon & Clear

Product ID: 23682665
Secure Transaction

Details

  • Material
    Wood
  • Brand
    Seal-Once
  • Style
    Protection
  • Item Weight
    8.73 Pounds
  • Item dimensions L x W x H
    10 x 4 x 10
🌿Ultra-low VOC, eco-friendly
💧Waterproof barrier
🛡️Deep penetrating protection

Description

🛡️ Seal your style with the ultimate waterproof wood armor!

  • ECO SMART ODORLESS - Water-based formula with ultra-low VOCs keeps your space fresh and safe for pets and plants.
  • NEXT LEVEL WOOD DEFENSE - Penetrates beneath the surface for a durable, water-resistant shield that outlasts typical sealers.
  • VERSATILE OUTDOOR ARMOR - Ideal for decks, fences, furniture, siding, and more—perfect for the modern outdoor lifestyle.
  • UV STABLE FLEXIBLE FINISH - Protects wood from sun damage while allowing natural aging with a breathable, matte finish.
  • EFFORTLESS APPLICATION CLEANUP - Fast-drying liquid that cleans up easily with soap and water—no harsh chemicals needed.

Seal-Once Nano+Poly is a premium, water-based polyurethane wood sealer designed to deeply penetrate and protect wood surfaces with a durable, waterproof, and UV-stable finish. Its eco-friendly, ultra-low VOC formula ensures safe use around pets and plants, while providing a flexible, matte barrier that enhances the natural aging of wood. Ideal for high-traffic outdoor areas, it offers easy application and cleanup, making it the go-to choice for long-lasting wood protection.

Specifications

MaterialWood
BrandSeal-Once
StyleProtection
Item Weight8.73 Pounds
Item dimensions L x W x H10 x 4 x 10 inches
Compatible MaterialWood
Water Resistance LevelWaterproof
Item FormLiquid
UPC854734005042
Unit Count128.0 Fluid Ounces
Number of Items1
ColorClear
Surface RecommendationFloor,Furniture,Siding,Wood
ManufacturerU-C Coatings
Part NumberSO7500
Item Weight8.73 pounds
Product Dimensions10 x 4 x 10 inches
Item model numberSOP 500G
Is Discontinued By ManufacturerNo
Size1 Gallon
FinishMatte
Item Package Quantity1
Included ComponentsSEAL-ONCE NANO+POLY Penetrating Wood Sealer with Polyurethane - 1 Gallon. Water-
Batteries Included?No
Batteries Required?No

do you need to sand the wood first to make it smooth before applying the sealer?
What is the difference in the Nano+Poly and the Marine?
Should i use wood putty/filler before sealing or after sealing by seal-once nano+poly?
Can this be applied with a sprayer? thanks

Reviews

D**A

What happened to UV protection???

This is my fourth time getting this product. The first time I got it, it came with UV protection, which is rare for clear sealants. I LOVE how easy this is to apply, it soaks in like water and just works. I used the UV protection one on my tool shed 4 years ago and till today it hasn't grayed! But then I guess they took that off the shelf, because I thought I bought the same product and sprayed it on my cedar fence the same as my shed, but it's completely grayed now.Bottom line: easy to use, feels really natural and safe to use (no smell and you get a little latex layer on your skin that's easy to scrape off), complete protection from mold and rot, but will not prevent graying anymore.Yes, put the second coat on fast if you're going to. In my experience it hasn't needed multiple coats when you apply the first thick enough.Hey Seal-Once! Bring back the UV protection formula, it really worked and the natural alternatives out there are crazy expensive!

P**R

Very good product

This is a very easy-to-apply water based clear coat. The application tools are easily cleaned with soap and water. Good coverage, doesn't require a thick film for good protection.

D**3

Used it on my Trailer

20’x80” car trailer. Application was easy, the treated wood on the trailer soaked it up nicely. I’m sure it will lighten up a bit after it cures. Looks great! I used a stain applicator tool, and a 2” brush for between the boards.

S**T

Easy to apply

No issues with application and after a month or so my project is still holding up just fine outside. I used a sprayer and back brushed for the application. Only time will tell how well it holds up in the Florida weather. It looks great so far.

P**3

Very Pleased!

1/2023 - UpdateI didn't remember to post in 2022, but I wanted to add a couple of pictures. I will say that am not sure if the product is going to hold up through six years (horizontal surfaces like the deck) as it's going on 3 years and I feel like I am seeing wearing I didn't expect. However, I am not a professional. I applied it with a brush and, perhaps, I didn't apply it as well as I should have. I am not comfortable blaming the product alone. Some sections seem to be holding up better than others. Currently, the furniture is covered up, but most of it seems to be holding up better than certain areas of the deck. It should be noted that most of the deck is probably close to 30 years old if not older. That may be a factor as well.6/2021 - UpdateI originally posted last November after treating wooden deck furniture. This June, I treated the deck after having it power washed. Still thrilled with the product and the way it's working. I am adding 2 additional pictures. The first is after the deck was power washed and the second is after I treated/painted it with this product. You can even see beaded water on the deck 🙂11/2020I am posting a review of this product along with some pictures. I will plan on updating it each year as the product is said to last approximately 6 on horizontal surfaces and 10 years on vertical surfaces.First, let me say that I wasn't exactly sure what to expect. When the product arrived I found it to be somewhat thin. When I realized it was water based, it made more sense that it wasn't very thick. That being said, I have been very pleased thus far with the results. I did the application with a brush. As you will see in the pictures, it does what it needs to do when it comes to rain. I also wasn't sure what color to get. I picked the bronze cedar and when used on new wood, that is the color you get. It is beautiful! You will see the color is not quite the same (seems a bit darker depending on the light) when used on wood that has already been treated with a previous product (I don't recall what product or color was on the furniture that I re-treated) It doesn't bother me, though, that the color isn't the same.Now for the pictures. The picture of the deck boards that I treated show the true color. I have not yet treated the rest of the deck as I want to make sure to power wash and clean it first and won't be able to do that till spring. When you see the picture of the boards with the water beaded on them and then see the boards around it don't have beaded water, it's because the rest of the deck has not yet been treated. The pictures of the furniture show the "before" of one of the small end tables and the "after." It also shows an "after" of another chair and table set and big picnic table. Mind you, the furniture wasn't in the best of condition. The last time it was treated was several years ago. I am very pleased with the way this product has worked so far. If you do happen to see an area that was missed, it is NOT the fault of the product, but of the person doing the application (me!) I look forward to treating the rest of the deck (and furniture) in the spring with this excellent product!

A**R

DO NOT USE FOR FURNITURE

The media could not be loaded. I bought this product specifically for outdoor furniture I had made. More specifically, for an outdoor table and some other projects I’m working on. This product should not be used on furniture at all.The finish after curing for three days is a glossy semi gloss finish. It is tacky to the touch, It has rendered my furniture unusable until I seal it with another product that I know will work from Home Depot.If you plan on using this product for something like fences, I understand how it might work better. It seems to repel water pretty well when I test it, However, if I put anything on this table, it will leave marks because it does not cure solid. It stays tacky.For that reason, I also don’t know if I would use this on any other outdoor use cases because things like dust and dirt will accumulate on the sealant.Thankfully, I’ve only used this product on my table, And as an extra coat on some existing furniture and not my other projects.If you don’t care about dust or dirt accumulating on whatever you apply this to then sure go for it.However, I will be returning this product because it does not work as advertised, and there are other superior products out there…

B**Y

Easy to apply

Worked beautifully!!

Common Questions

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Yusuf A.

Fantastic experience overall. Will recommend to friends and family.

1 month ago

Ali H.

Fast shipping and excellent packaging. The Leatherman tool feels very premium and sturdy.

1 day ago

Shop Global, Save with Desertcart
Value for Money
Competitive prices on a vast range of products
Shop Globally
Serving over 300 million shoppers across more than 200 countries
Enhanced Protection
Trusted payment options loved by worldwide shoppers
Customer Assurance
Trusted payment options loved by worldwide shoppers.
Desertcart App
Shop on the go, anytime, anywhere.
204079CFA
Cameroonstore
1
Free Returns

30 daysfor PRO membership users

15 dayswithout membership

Secure Transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Vikram D.

The MOLLE sheath is of exceptional quality. Very happy with my purchase.

2 weeks ago

Meera L.

Smooth transaction and product arrived in perfect condition.

3 weeks ago

Seal Once Nano Poly Penetrating Wood Sealer With Polyurethane Premium | Desertcart Cameroon