








🛡️ Seal your wood’s future with invisible armor—because your outdoor space deserves premium protection!
Seal-Once Nano Penetrating Wood Sealer is a premium, water-based polyurethane sealant designed to deeply penetrate wood surfaces, providing a durable, waterproof, and UV-stable barrier. This 1-gallon clear sealant is ultra-low VOC and odorless, making it ideal for protecting decks, fences, and outdoor furniture while allowing natural wood aging. Fast-drying and easy to clean with soap and water, it offers professional-grade protection with eco-conscious benefits.








| Material | Polyurethane |
| Brand | Seal-Once |
| Style | Clear |
| Item Weight | 8.84 Pounds |
| Item dimensions L x W x H | 7 x 7 x 9 inches |
| Water Resistance Level | Waterproof |
| Item Form | Liquid |
| UPC | 850336001000 |
| Unit Count | 128 Fluid Ounces |
| Number of Items | 1 |
| Color | Clear |
| Surface Recommendation | Deck |
| Manufacturer | UC Coatings |
| Part Number | SO7214 |
| Item Weight | 8.84 pounds |
| Product Dimensions | 7 x 7 x 9 inches |
| Item model number | SO8214 |
| Is Discontinued By Manufacturer | No |
| Size | 1 Gallon |
| Finish | Unfinished |
| Item Package Quantity | 1 |
| Included Components | One Premium Waterproof Sealant |
| Batteries Included? | No |
| Batteries Required? | No |
R**T
perfect product. plenty of coverage for multiple door frames.
The media could not be loaded. After looking at different reviews, seems like a great product. clear works best for natural look. plenty of coverage for multiple door frames. All the local stores were sold out. did not need a lot so a quart was perfect. Have plenty left over. Dries quick. Adds a water barrier to your wood or other finishes.
K**R
Easy To Use and Clean Up
What a great product! I cleaned my cedar fence and wanted to apply a sealer to keep the natural color vibrant. This is the first time I've used this product and I am so happy with the process. Time will tell about the longevity of it.I decided to use a paint roller and paint brush to apply. The product has a light scent that is not offensive and a consistency that is easy to apply. I could have used a sprayer, but it went on so easily and saturated the fence slats nicely, I just thought it might be a fuller coverage this way. Clean up was a breeze. I am going to look into the other products this company makes. so far, a big win!
P**R
Alternative to pressure-treated wood?
Good product. Good value. Seems like an excellent alternative to toxic pressure treated lumber — which most lumber yards even refuse to cut for customers.I don’t have 10 years to test this stuff, but appreciate that it goes on easy, doesn’t smell and is easy to clean up.
M**K
Good solution for cracked sink
Overall, it is a very convenient product to use to paint a sink, and it is a Good solution for cracked sink.The final taxture wasn't as glossy as the original sink was, bit I am still satisfied from the result.
C**H
Good product, but poor order management
I reordered this product in Clear. I received the product in gray. I asked for a replacement. I received another Gray, only this can had been well used. I give up!
B**.
Worth every penny!
Invisible when dry, and completely waterproofed my outdoor stuff with one application. For small items, I simply dipped them in the bucket and hung them up to dry. The product looks like watery milk, so it's kind of messy, but it easily washes off your hands with soap and water, and it didn't appear to hurt the grass at all when I used it in the yard. This gallon will go FAR, and protect my things for a long time.
M**T
Highly recommended
Seals wood great for my outdoor signTime will tell how long it will hold up but I researched it and this was highly recommended
M**A
The wood still got breeches by the sun after two weeks
I’ve used other products where are the results were much better. I put this on a brand new barn door that I made and installed on the garage. It was a blue stain wood. And when you first put on a coat the blue actually turns purple but then when I try it went back to blue so I was happy about that. I put on a second and third coat even though it didn’tAsk for it and in just two short weeks in the sun the door is completely bleached so to me it did not work.
Trustpilot
5 days ago
4 days ago