







🛡️ Seal it, shield it, and never stress it again!
Flex Seal Liquid is a premium liquid rubber sealant that creates a flexible, breathable, and UV-resistant waterproof coating. Ideal for a wide range of surfaces including roofs, basements, RVs, and marine equipment, it dries fast to a durable, glossy finish that protects against water, rust, and corrosion. Trusted by thousands for reliable, long-lasting repairs.












| ASIN | B019PFO4KM |
| Best Sellers Rank | #8,263 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #28 in Hardware Sealers |
| Brand Name | Flex Seal Liquid |
| Color | Black |
| Compatible Material | Metal, Paper |
| Customer Reviews | 4.5 4.5 out of 5 stars (2,178) |
| Global Trade Identification Number | 00853517006283 |
| Included Components | 16oz Flex Seal Liquid |
| Item Dimensions | 4 x 3.4 x 3.4 inches |
| Item Form | Liquid |
| Item Type Name | As Seen On TV, 16 OZ, Black, Flex Seal Liquid |
| Item Weight | 16 ounces |
| Manufacturer | Swift Response, LLC |
| Material Type | Rubber |
| Model | LFSBLKR16 |
| Number of Items | 1 |
| Part Number | LFSBLKR16 |
| Style Name | Industrial |
| Surface Recommendation | Roof |
| UPC | 853517006283 |
| Unit Count | 16.0 Fluid Ounces |
| Warranty Description | 1 |
| Water Resistance Level | Waterproof |
T**G
Love this stuff!!
Love this stuff! Was able to use it to help seal various different parts on my 69 Dodge Dart Project. Has a nice glossy texture and dries pretty quickly. Helps protect my components in my car and keeps them from cracking. It is a good texture for most any projects. I have used it on other applications too. It's nice that it's a versatile project that I can use for almost anything!
T**Y
Best product ever for water proofing and sound dampening on car
This stuff is amazing. I actually used it on the floorboard of my vintage VW and under fender wells. Very durable product and good sound dampening, I used paint brush and paint on very thick. Worked great and basically put a solid layer of rubber on my car for good protection from elements.
D**Y
Expensive
I use this on pluck and pull foam in Pelican cases. Three coats work well to hold the foam together after cutting. It is just expensive.
F**R
Worked great
This did what I expected. I have a 1976 Volkswagen Beetle convert. that I am fixing up. The rubber on the running boards was dried out and discolored, along with some splits in the rubber showing bare metal underneath. It was going to cost well over two hundred dollars each to replace them, so I thought I'd try Flex Seal. After cleaning and drying the running boards I applied the product with a small paintbrush. It went on easily,covered really well, and small "oops" we're easily wiped up with a cleaning cloth. I allowed a drying time of 24 hours and just now went out and filled in the split areas with a little more product and smoothed it out with the brush. It looks fantastic! I took a couple pictures which don't do it justice. It dried really shiny, and looks wet although it's dry and looks and feels like rubber. Some tips: I first stirred it very well because I could tell it was thick at the bottom of the can. It was easy to stir up though. When I was finished with the project yesterday, I replaced the can lid and tapped it on tightly. My brush I wanted to use again for today's touch up, so I sealed it in tin foil. When I opened the can again today it was ready to go but is tired it again anyway. There was no "skin" on top, and no lumps. My brush was only slightly stiff and I was able to use it again. I used about half a can of the product to do both running boards and am very pleased with how they look!
R**Y
Flex Seal I love you
I should be a spokesman for Flex Seal. I always have everything they make in all of the colors on stock and when running low I stock up like I just did. This stuff is amazing. I know from using at my home, our camper our sheds just how well this really works. I have told so many people about this they all stock up as well. A few years ago a tree branch came down thru my shed roof. We had to cut the branch just to get it out of our shed. Well I grabbed my ladder, Flexseal tape and spray and went to town. 2 years later it is still holding well. I can't say enough
L**D
Works great for my purposes. That is to keep things from sliding around.
Two or three years back, I 3D printed some drink coasters to use. But one problem was that they would slide easily. So I ordered Flex Seal in this week to try coating the bottom of them creating a non-skid surface. It takes 48 hours for this stuff to cure completely. But after 24 hours with my 1st test, it appears that I am getting what I wanted. A non-skid surface on the bottom of these coasters. The stuff states that it can be used as a sealant. But there are many products that can be used as a sealant, and this 48 hour cure time is a drawback. 24 hours before it is safe to handled. It also states that it can be used as liquid electrical tape. Again, I agree with this. But that curing time is a drawback. But for coating surfaces, it is a winner in my book. (So far....) Update: April 9, 2018 The stuff worked great on the PLA plastic coasters. PLA plastic is a material made from corn. However, I had 3D printed 1 coaster with ABS plastic with a rough base. ABS plastic is the stuff used in cars. Here the Flex Seal appeared to cure in 24 hours. However, that coaster required 2 coats of Flex seal because it had soaked into the plastic.. Having used my coasters with the Flex seal bases for a few days now, they work exactly as planed. Put a cup in them with any liquid, and they are planted and un-moving. They won't slide off of a table without a lot of help. I suspect that this application would work for many materials where you don't want them sliding around. (Hmmmm...... I wonder if I can make some non-skid pads under my old laptop? Maybe the same thing for my sound speakers on my desktop or TV? It's an idea...)
R**L
Seals well
Used it on the inside of an old electric coke cooler. Works great and still lets it stay cool inside.
P**D
Little expensive, but works
Kinda expensive, not a lot of coverage, but does what it’s supposed to do
G**N
Not cheap but fixed hot tub liner brilliant stuff will definitely buy again and easy to use
M**N
Received a crumbled can
W**M
A very good product for sealing gutters and skylights. Paints on easily and seals all holes.
D**N
good product
J**F
Great stuff
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