SEAL-ONCE MARINE - 1 Gallon Penetrating Wood Sealer, Waterproofer & Stain. Water-Based, Ultra-low VOC formula for high-moisture areas to protect wood docks, decks, piers & retaining walls.

All of my reviews are of things I buy for myself. I do not accept freebies or anything in exchange for my reviews. Period.The Marine stain-sealer works very good. It has good coverage, goes on easily and quickly and the result is long lasting and looks great. It's my go-to stain-sealer now. I use it on my decks instead of the nano type.I've read many of the reviews and throughout many of them the same theme comes up, lack of proper wood prep or not following instructions. Preoprly prepared wood and follwing instruction will provide you with one of the best stain and sealer applications of any product including the top tier name brands.The wood. If the wood isn't properly prepared then no matter what you put on it will fail prematurely.Putting any stain and selaer on new bought wood is a mistake unless you first clean it and sand it. The wood you buy often has a waxy coating on it and sometimes anti-mold agents put on it. If all you try to do is buy new wood for your deck or project and then just stain and seal it, it won't last. Clean the new wood first, it's easy and you can use a dilution of bleach, water and dawn dish soap. Use a deck brush to scrub the wood and then rinse it off real good. The let it dry for at least two days, 3 or 4 days if it's humid or not really warm outside. If you don't do this the stain and sealer will not take.Before you apply the stain-sealer, test for penetration. When you apply a small amount it should soak right into the wood. If it sits on top, it's not going to work, nothing else will either.If you are using it on a deck, sand it even after cleaning the boards. Then just before you sapply, wipe the boards with a damp clean rag. Do not rely on using an air compressor or brush to get the sanding dust off. The rag should be just damp, not soaking. Let the boards dry for a few minutes and then apply the stain-sealer. It should soak right into to wood. This coat should not be heavy, but rather a light to medium light coart. You should not see shine on the surface. If you do, that means the stain-sealer isn't penetrating and you didn't prepare the wood correctly.On a 16' typical deck board, start from one end and let it sit for about 5-10 minutes. Go back to where you started to put on the secnd coat. This will be a light coat and it might seem shiny for just a short time. Don't use a heavy coat or it will sit on top and come off ahwn it wears or water gets on it.Curing. Let it cure. 2 days is best. Planning for this time is essential. If you need to use the deck then do part of it and then block that area off. Rotate areas you can use vs areas that need to cure.When to apply. After the morning sun is up and temps are up. Applying stain-sealer while the air has a lot of humidity is bad practice. Same with trying to finish some boards late in the afternoon unless your area is still nice and warm with low humidity.Decks or docks near or over water. The air is full of humidity so only aply at the height of the warm part of the day. Many boards on docks have been previous treated with oily sealers. Sorry, you'll never get that stuff off the boards so your choice is to use a similar sealer because nothing else will hold up. So clean your dock boards really good. The problem is that anything you use to clean much be ok if it gets into the water or can drain into the water. That means if the wood was treated with any oily type selaer nothing you can use that is safe for the water will also take off the previous oily sealer. Use the right product for the job.Brushes. Amazingly, some of the cheap synthetic brushed worked far better than expensive name brand brushes. The more expensive brush load up too much sealer and that isn't what you want. You want the sealer to run off and out of the brush so you can control how much goes on the wood. Trying to spread the sealer using the brush is a waste of time and leads to a bad result. Light coats.Clean-up. Dawn dish soap applied directly to the brush on both sides and then just a little water to let it suds up. Work the brush in a stainless steel pan back and forth really good. The start rinsing. Keep rinsing until thre are no more suds and the water runs clear. SHake the brush and let dry. Do that and just slightly beding the bristles before next use is like a new brush.Prep, prep, prep. You only stain-seal once every few years, don't skimp on the prep.

I purchased this product to refinish my small teak table for our patio and two wine barrels I’m restoring. I sanded the old finish for the table with 150 grit paper followed by a finish sanding using 220 grit. I used a small synthetic brush to apply the product. Following the instructions I applied the first coat being careful not to apply too much to avoid ponding. It went on smoothly, I applied a second coat after 15 minutes or so, as instructed on the label. It restored the teak to the original color and beauty. I was able to refinish the top of one of my barrels using the same procedures, except only one sanding with the 150 grit. It turned out great. It was easy to clean the brush as this is a water based product. I found Seal-Once to be a great value for the money. Time will tell how durable it is but I’m confident it will be.

Wow! I couldn’t be more impressed! I searched for the perfect sealer for a live edge outdoor art piece and this one ticked all the boxes: Goes on quick and easy, low/no odor, soap & water clean up, fast drying, non-yellowing and excellent waterproofing. The best part!? It lived up to all of my expectations! The only “negative” about this product (which was actually an amazing bonus) was the clip added to the top of the gallon to prevent leaking during shipping was on tight and took some muscle to remove!! Shipping was lightening fast too!! It did an excellent job in sealing the live edge of the wood and I anticipate it will preserve it for years!

The product was delivered next day, early in the morning. Three Gallons were order, and one of them had product all over the outside of the can and down the side of one of the other cans from dripping. Packaged in a loose plastic bag.Other than that the product works as advertised. Goes on easy.

Stain applies well but prepare for spills and clean up. Protect areas you don't want covered. It's a watery type product so it will drip each time you go from a pan or the bucket to the wood structure. Quality of the stain seems great so far. I love the grey color. Applied 2+ coats and the results so far have been positive. Water runs off the deck so it should be well protected for years. Very pleased with this stain. Delivery from Amazon was prompt (next day as I recall). Made ordering so much easier than running to the local box store.

Too difficult to apply. It's water based, but the directions say put on a second coat within an hour. Well, it wasn't clear to me that I could not treat the entire 12x 8 deck on Saturday morning, by putting 2 coats on the vertical surfaces and only one on the deck.Sunday, I tried to put on a second coat on the deck. It was beading up and giving "spots" or a fish-eye finish.It was allowed to dry a few days, but the final appearance is terrible. Two-tone depth of color, spots & water marks. Even after a week to cure, the deck is still sticky to walk on. I will need to X paint the deck now.Directions should say, only do as far as you can reach, let it cure an hour and apply second coat on treated area. DO NOT LET COATS CURE BEFORE APPLYING SECOND COAT.Also, the third coat applied to the rails is much darker than the bronze color I wanted. It turned the rails a dark BROWN.

The product is excellent. It is easy to apply and provides years of protection from the weather for my wood decking. The problem I had was with the delivery. I ordered it two times. First time they had to refund my money telling me the item was damaged and undeliverable. Second time the delivery was made on time but the packaging was weak and didn’t properly protect the item. It leaked all over the inside of the box and was a mess! The product was mostly intact and I was loathe to endure the return reorder fiasco. So I used it as it was. I am happy with the product but not with the shipping or a customer service experience that makes it difficult to try to help Amazon improve their delivery strategy. Thank You!