* Disclaimer: OveReview is reader-supported. We earn commissions from qualifying purchases
Liquid Rubber Waterproof Sealant - Multi-Surface Leak Repair Indoor and Outdoor Coating, Water-Based, Easy to Apply, Original Black, 1 Gallon Liquid Rubber Waterproof Sealant - Multi-Surface Leak Repair Indoor and Outdoor Coating, Water-Based, Easy to Apply, Original Black, 1 Gallon Liquid Rubber Waterproof Sealant - Multi-Surface Leak Repair Indoor and Outdoor Coating, Water-Based, Easy to Apply, Original Black, 1 Gallon Liquid Rubber Waterproof Sealant - Multi-Surface Leak Repair Indoor and Outdoor Coating, Water-Based, Easy to Apply, Original Black, 1 Gallon Liquid Rubber Waterproof Sealant - Multi-Surface Leak Repair Indoor and Outdoor Coating, Water-Based, Easy to Apply, Original Black, 1 Gallon Liquid Rubber Waterproof Sealant - Multi-Surface Leak Repair Indoor and Outdoor Coating, Water-Based, Easy to Apply, Original Black, 1 Gallon

Liquid Rubber Waterproof Sealant - Multi-Surface Leak Repair Indoor and Outdoor Coating, Water-Based, Easy to Apply, Original Black, 1 Gallon

Liquid Rubber Waterproof Sealant - Multi-Surface Leak Repair Indoor and Outdoor Coating, Water-Based, Easy to Apply, Original Black, 1 Gallon Liquid Rubber Waterproof Sealant - Multi-Surface Leak Repair Indoor and Outdoor Coating, Water-Based, Easy to Apply, Original Black, 1 Gallon Liquid Rubber Waterproof Sealant - Multi-Surface Leak Repair Indoor and Outdoor Coating, Water-Based, Easy to Apply, Original Black, 1 Gallon Liquid Rubber Waterproof Sealant - Multi-Surface Leak Repair Indoor and Outdoor Coating, Water-Based, Easy to Apply, Original Black, 1 Gallon Liquid Rubber Waterproof Sealant - Multi-Surface Leak Repair Indoor and Outdoor Coating, Water-Based, Easy to Apply, Original Black, 1 Gallon Liquid Rubber Waterproof Sealant - Multi-Surface Leak Repair Indoor and Outdoor Coating, Water-Based, Easy to Apply, Original Black, 1 Gallon
$ 29.95

Score By Feature

Based on 2,134 ratings
Adhesion
9.90
Easy to use
8.88
Water resistance
8.90
Value for money
8.52

OveReview Final Score

How Our Score Is Calculated

Product Description

By entering your model number, you can make sure that this fits.
PROTECTIVE FINISH FOR - Metal roofs, sloped roofs, planter boxes, foundations, sheds, basements, metal, wood, concrete, and more.
PROTECTIVE FINISH FOR - Metal roofs, sloped roofs, planter boxes, foundations, sheds, basements, metal, wood, concrete, and more.
FLEXIBLE IN EVERY WAY
1 gallon/30 sq ft (2.25 gallons) COVERAGE - Vertical Surfaces 8 sq m). 3-4 heavy coats are required to achieve a thickness of 30 mil (0. Membrane with a diameter of 76 mm. 1 gallon/15 sq ft (1.25 gallon/1.25 gallon/1.25 gallon/1.25 gallon/1.25 gallon/1.25 gallon/1.25 gallon/15 sq f 4 sq m). To get a 60-80 mil (1.25 mm) finish, apply 4-5 heavy coats. Membrane (5-2 mm)
LIQUID RUBBER WATERPROOF SEALANT/COATING IS ENVIRONMENTALLY FRIENDLY - Liquid Rubber Waterproof Sealant/Coating is water-based and contains no solvents, volatile organic compounds (VOCs), or noxious odors. It is safe for both humans and pets to use, and it can be used both indoors and outdoors without the need for special breathing equipment.
Bridge joints, seams, vents, gaps, protrusions.... FOR A BULLETPROOF SYSTEM Wherever possible movement may occur, use Liquid Rubber Seam Tape or Liquid Rubber Geo-Textile

Questions & Answers

Is it possible to seal a koi pond using this method?

Yes, a koi pond can be sealed with Liquid Rubber Waterproof Sealant. To reinforce joints, seams, and 90-degree angles, Liquid Rubber Seam Tape or Liquid Rubber Geotextile is recommended.

My pond is a black plastic pond that I purchased from Home Depot. Is it going to stick to that stuff?

Yes, several coats are required. Allow 24 hours for each coat to dry completely. You can use a spray bottle to spray the pond's interior. For the outside of the pond, I used an undercoating product that is used for undercoating cars. I applied three coats of paint. Before applying the next coat, I let the previous coat dry for two days. Everything went perfectly; my pond looks brand new, there are no leaks, and all of my goldfish are fat and happy! Best of luck! Take your time and make sure you've covered all of the areas, including the sides. Before you begin applying chemicals, make sure the pond is completely clean. To clean the pots, I used a rough kitchen pot scrubber.

How long does new concrete have to cure before liquid rubber can be applied? We're using this product to seal our new concrete pond, so there won't be any fish in it. ?

According to the installation instructions, new concrete must cure. Applying any of the Liquid Rubber products, or most waterproofing products, before the concrete has fully cured, may jeopardize the concrete's curing process.

Is there a strong odor from this project once it's dried?

No odor has been detected. There is a typical rubber smell, similar to that of a basketball, when you first put it on, but it doesn't last long. It also smells like rubber, which isn't a bad thing. It seems to work for me.

Selected User Reviews For Liquid Rubber Waterproof Sealant - Multi-Surface Leak Repair Indoor and Outdoor Coating, Water-Based, Easy to Apply, Original Black, 1 Gallon

Don't
5/5

Despite the fact that I bought and used this product to seal my cement pond, I was fortunate in that I was able to contact the manufacturer. I learned that I would need to use a primer after asking a few questions. I couldn't find the primer on Amazon, so I had to order it directly from the manufacturer. I was told that if I hadn't done this, the product would not have adhered properly to the cement. I applied three coats of liquid rubber after two coats of primer. In my pond, it appears to be holding water, but I'll reserve final judgment until after the winter is over. br>I started with the Flex Seal product and found that I preferred it because it provided more coverage and was easier to apply. If you buy this product, I strongly advise you to contact Liquid Rubber via phone, chat, or the website to ensure proper application. When you consider the cost of wasted product, failing to do so could be a costly mistake.

Kaia Romero
Kaia Romero
| Mar 18, 2021
The best waterproofing/sealing agent is This is the first time I've ever used a waterproofing product
5/5

er for an aging fish pond that was leaking. Both the Flex seal and the rustoleum sealant failed after about a week. Both a rubber liner and stone work can be found in my pond. Both materials were stuck together by liquid rubber. There haven't been any leaks in the past year. This product was recently purchased for use on a leaking shed roof. So far, everything has gone well. There is a slight rubber odor that dissipates quickly, and it sticks to whatever surface you want it to, especially vertical surfaces. It is 100% safe for a fish pond if used for a fish pond if used for a fish pond if it% I also used it to repair a small crack in a drain pipe; the only thing I would recommend is that if you're using it to seal a surface that's been submerged in water, make sure the area is dry first, apply a couple of thin coats every couple of hours, and let it dry for at least four days. There is a difference between cure and dry time; cure is fine if the object gets wet, but complete drying is required for constant water contact, which applies to all types of paints and sealants. br>I hope you found this information useful.

April Zuniga
April Zuniga
| Aug 12, 2021
a fantastic product! So far, the following have been used: foundation sealing, waterproofing damaged/replaced sill plate on exterior wall to prevent water from flowing over top of foundation into my garage during heavy rains, extra layer of protection around newly installed windows and sky light, coating bottom 2 feet of fence posts before setting in dirt, coating beams supports under deck boards to extend the life of my new back deck I'm sure I'll come up with more applications for this
5/5

a fantastic item!.

Niko Tucker
Niko Tucker
| Jun 04, 2021
I used acrylic paint to paint the inside of a concrete pond
3/5

Painted . I used acrylic paint to paint the inside of a concrete pond. Two coats of paint were applied to a clean, dry concrete surface. After a month of standing water in the bottom, I cleaned it out, and the rubber paint bubbled up and flaked off in several places. It was not able to adhere to the concrete.

Ila Costa
Ila Costa
| Aug 22, 2021
The best, an amazing product!br>I used it to repair a water leak in my concrete roof caused by rain
5/5

It rained for about 6 hours after the first coat was applied. Our dining table did not receive a single drop of water. To double-check that everything was covered, I applied a second coat.

Dion CHAMBERLAIN
Dion CHAMBERLAIN
| Jul 15, 2021
For ponds, this is an excellent product
5/5

For the past 15 years, I've had a pond on my property. I've resealed it with a variety of products several times. By far the most effective product. If you use a thick coat, I recommend using a fan to speed up the drying process. I adore the fact that no mixing is required! When applied, the product is also very thick and does not drip much. I applied it with a paint roller, and it worked fine; cleanup was also simple, requiring only water.

Marie Bright
Marie Bright
| Dec 17, 2021
This product is excellent for lining your chicken coop with rubber
5/5

This product is fantastic for lining your chicken coop with rubber! Using washed construction sand in the coop over the three coats of liquid rubber makes it a breeze to turn and hose out, and it stays spotless and odor-free. Especially when using a spray bottle to apply lavender or chamomile oil.

Priscilla Guthrie
Priscilla Guthrie
| Jun 18, 2021
I'm extremely pleased with myself
5/5

My tin chimney was the recipient of this treatment. On my chimney, there was a broken exhaust pipe. The pipe began to leak where it connected to the flat tin 2' x 4' cap. I put four different products to the test: Roof tar tube, rustoleum poly spray, and flex seal Nobody else was able to stop the leak. Then I tried it out and it worked great. The product's consistency and finished, dried state met all of my requirements. I'm extremely pleased with myself.

Abner Carr
Abner Carr
| Sep 21, 2021

Related Products For Liquid Rubber Waterproof Sealant - Multi-Surface Leak Repair Indoor and Outdoor Coating, Water-Based, Easy to Apply, Original Black, 1 Gallon