FLEX SEAL Family of Products
Flex Seal MAX, Black, 17-oz.
Made in Usa
Model #
FSMAXBLK24
Item #
101898
FLEX SEAL Family of Products

Flex Seal MAX, Black, 17-oz.

Flex Seal MAX, Black, 17-oz. is rated 4.6 out of 5 by 483.
  • y_2022, m_9, d_26, h_20
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$19.99
In stock
Model #
FSMAXBLK24
Item #
101898

Online price. In-store price & availability may vary.

In stock
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Description
Flex Seal MAX gives you the power of flex seal with 20% more coverage. Flex Seal MAX is a rubberized sealant spray coating that sprays out as a liquid, seeps into cracks and holes, and dries to a watertight, flexible, rubber coating. Flex Seal MAX will not sag or drip in summer heat, nor crack or peel in winter cold. Use on wet or dry surfaces. Ideal for uses around the home, boat, and RV. It's the easy way to coat, seal, and stop leaks fast.
  • Easy-to-use, portable, aerosol spray with 20% more coverage
  • Fix leaky roofs, gutters, and downspouts
  • For roof drip edges and flashings
  • Leaky or broken hose and PVC pipe repairs
  • Seal or repair windowsills
  • For A/C drip pans, portable A/C units, duct work, and chimneys
  • On boats and other personal watercrafts
  • Flat, metal, rubberized and granulated roof repairs and leaks
Specifications
Specifications
SKU101898
Weight1.400000
UPC00850010226927
Country of OriginUS
Package Width3.0
Package Length11.0
Package Height3.0
Model NumberFSMAXBLK24
BrandFLEX SEAL Family of Products
Manufacturer NameSWIFT RESPONSE LLC
California Residents Proposition 65Warning: Black aerosol label: Warning: This product can expose you to chemicals including Ethyl Benzene and Carbon Black, which are known to the State of California to cause cancer, and Toluene, which is known to the State of California to cause birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.
Rated 4 out of 5 by from Yes, please [This review was collected as part of a promotion.] I love this Flex Seal spray. I used on some trees in my front yard after a fresh cut. Seals it up with no random sprouts coming up after I do my annual trimming. Definitely purchasing more for next year. Thanks!
Date published: 2019-12-13
Rated 4 out of 5 by from Works Better Than I Expected! [This review was collected as part of a promotion.] When I decided to try Flex Seal I didn't have great expectations. I made a bird bath that was leaking from a fitting on the bottom. My first attempt I cleaned the area & applied the Flex Seal around the failing fitting. After letting the Flex Seal cure for 24 hours, I added water to the bird bath. The fitting was still leaking but significantly less. I dried out the area and applied a second coat. After letting it dry for another 24 hours it no longer leaks! It did take 2 coats but it really worked as advertised.
Date published: 2019-12-12
Rated 5 out of 5 by from Worked great [This review was collected as part of a promotion.] I a minor leak along the top seal of my bay window. It was to costly to replace so I used this flex seal to help stop the leak. It works great! It was easy to spray and only took two layers to completely seal the leak. It’s been about a month since applying and it has held up just fine. No more leaky window seal.
Date published: 2019-12-10
Rated 5 out of 5 by from Works great [This review was collected as part of a promotion.] I used Flex Seal on the basement air ducts and it worked great. This will save money on utilities and prevent dust from entering the ducts and blow in the air vents in the house. I can’t wait to see what else I can use Flex Seal for.
Date published: 2019-12-09
Rated 5 out of 5 by from It worked! [This review was collected as part of a promotion.] So here in southern California we have been getting some rain and we noticed our rain gutter over the sliding glass door had cracked. It wasn't a huge inconvenience but it did mean that our balcony was collecting a lot more water than usual. We gave this a try and ended up spraying both the inside and outside to give it a nice good seal and it worked. So far there hasn't been any more leaking and it saved us the cost of replacing the whole gutter. It save us money on a project that we hate to spend money on because we usually don't get heavy or a lot of rainfall, so this was a great immediate fix. It was easy to spray and dried in less than 2 hours. The spray gave us an even coat as we held the can only about 3-4 inches from the surface. Great for quick fixes around the house without all the crazy costs.
Date published: 2019-12-09
Rated 4 out of 5 by from Did a great job [This review was collected as part of a promotion.] I was looking for something to fill is cracks on the roof of my rv so I thought I'd give flex seal a try.i followed the directions and sprayed the first coat and let it dry for 24 hours and did another to make sure I got all the cracks covered So far not a drop of water has come thru! Great Product! Easy to apply and works!
Date published: 2019-12-08
Rated 3 out of 5 by from Good stuff [This review was collected as part of a promotion.] I used this product to patch a leak in my rain gutters. I was impressed with how little I needed. I'm looking forward to try it on other items . Next, I'm going to try and seal an older aquarium that has a leak.
Date published: 2019-12-07
Rated 5 out of 5 by from Love It!! [This review was collected as part of a promotion.] I was kind of skeptical about how this would work but i have to say I'm really impressed. I used it on my leaky pipes under my bathroom sink and it actually sealed it great and since applying it I haven't had a problem with the leak. When i run out of this i will definitely be buying more.
Date published: 2019-12-07
Rated 4 out of 5 by from Excellent and quick temporary fix [This review was collected as part of a promotion.] Flex Seal is a convenient, easy to use product for temporarily fixing leaks on anything from pipes to metal roofs. It is a reliable, fast acting product that provides the user time to come up with a more permanent solution. Flex Seal was fantastic for stopping a leak on our metal roof until I was able to fix the leaks permanently. Thanks to Flex Seal, I had time to do the project right and not have to rush to get it done. I highly recommend Flex Seal to anyone needing a temporary quick fix to these types of problems.
Date published: 2019-12-06
Rated 4 out of 5 by from Great product, but can make a mess in humid areas [This review was collected as part of a promotion.] It took me a while to get the hang of using Flex Seal in the spray can. The directions on the can are really good and do a good job explaining how to apply it, even for someone like me who does not do well with DIY type stuff. I first used it to repair a leaky gutter. I ran into problems with this project because the gutter is always wet. I knew the product needed to be dry for 24-48 hours for it to be effective, but this seemed impossible due to an all metal roof and high humidity. I rigged up a high powered fan to point at the leaky spot and this seemed to work. It has not rained yet so I am not sure how well it sealed the leak. It did work wonderfully for repairing some cracks in some flashing on my roof. The cracks were not causing leaks in doors, but the area covering my porch was leaking and now it appears fixed. I used to see sun through those cracks and now I cannot. It took several layers to get them sealed.
Date published: 2019-12-06
Rated 5 out of 5 by from Great for small jobs [This review was collected as part of a promotion.] A good invention. I have used some of the can. It sprays well and coats evenly. Is an easy thing to use as a waterproofing fix Be sure to follow all instructions and ventilate room as much as possible.
Date published: 2019-12-06
Rated 3 out of 5 by from flex seal [This review was collected as part of a promotion.] I used it on the interior of my gutters at all the joints. it worked great! but when i used it on the exterior of a shed where i had water running directly into the base and it would leak into the shed. i applied it to the bottom of the shed hoping the flex seal would divert the water. but it did not work the water seeped through the bottom.
Date published: 2019-12-05
Rated 4 out of 5 by from Good for the right applications [This review was collected as part of a promotion.] I must say I was a bit hesitant about the claims of this stuff. This stuff is pretty good though. Make sure you fully understand what this stuff is, how it is supposed to be used (safety especially), and have a realistic expectation of what it can "fix". I was able to use this to seal a cracked pot with a plant in it. It worked fine for that but I would not expect it to work on anything that is under "pressure". I've not tried their seal tape but would like to.
Date published: 2019-12-05
Rated 5 out of 5 by from works great! [This review was collected as part of a promotion.] Love the flex seal black! this stuff works like a charm, I have a leaky gutter right on the corner of my front porch. its get colder and when it leaks it turns the front wall into ice. I got the flex seal black and as the gutter was dripping away I sprayed the area generously with the flex seal, even wet it sealed it right up, jo more leak! I truly am a fan of this product!
Date published: 2019-12-05
Rated 4 out of 5 by from Perfect [This review was collected as part of a promotion.] I was sceptical about trying this product as it seemed too good to be true. However, I used it on a leak and it seems to have fixed it. I know it is just a temporary fix but it seems to be holding great now. Just make sure the area is dry where you use it.
Date published: 2019-12-05
Rated 4 out of 5 by from It works, but follow safety instructions carefully [This review was collected as part of a promotion.] I used this to seal up a window in my basement that was both leaky and drafty. You need full body protection to work with this chemical- mask, eye protection, gloves, probably can’t hurt to use a disposable gown or jumpsuit. After you’re properly protected, you must also make sure that the area is well ventilated. Since I planned to seal the window frame, I had to open other windows. I didn’t realize it would be so strong smelling, or last so long. I had to leave my windows open for 2 days in cold/wet weather. I should’ve done more research. After it cured, the window stopped leaking and I no longer feel a draft. It was easy to paint to match the rest of the window pane. It does work, but you have to take precautions to use it safely.
Date published: 2019-12-05
Rated 5 out of 5 by from Amazing!! [This review was collected as part of a promotion.] This stuff is amazing!! I had a leak around my dryer vent that runs outside. There was a big gap around the edge and every time it rained it would get all wet behind my dryer. Well I used this all around the edge from the outside and then I used it around the inside. I let it sit for a couple of days and it dried completely and there are no more leaks. I really love this product and I would highly recommend it.
Date published: 2019-12-05
Rated 5 out of 5 by from the pefect seal [This review was collected as part of a promotion.] I have used original flex seal for years so i was excited to see it in a different color and have something in my arsenal other than plain white. The black was perfect for sealing up some of my patio bricks and some leaks in my roof and it matched my shingles pretty perfectly. I have also used it not to necessarily seal but to fill in cracks on my wifes bird feeder that broke when a squirrel knocked it over. I am glad to have this on the occasion i need something other than white.
Date published: 2019-12-05
Rated 4 out of 5 by from Handy Spray Sealant [This review was collected as part of a promotion.] Sealant in a handy package. Note that it won't bridge large gaps and takes a while to dry if it's thick, so it's best to apply several thinner coats.When you're done spraying, be sure to follow the instructions to clean out the nozzle, to prevent clogging. Turn the can upside down and spray until clear.
Date published: 2019-12-05
Rated 5 out of 5 by from Perfect Seal [This review was collected as part of a promotion.] The Flex seal I used is wonderful. It sealed up immediately and stopped the leak. I wasn’t too sure about it when I first received it but was definitely pleasantly surprised. It seems like it is sealed for the long haul! I will definitely recommend to others.
Date published: 2019-12-05
Rated 5 out of 5 by from Works like the commercials claim! [This review was collected as part of a promotion.] I really like this product. I have been interested in it for awhile but didnt really trust the claims. I tried it on a leak and it works great! I will never be without this product!! Definitely recommended.
Date published: 2019-12-05
Rated 4 out of 5 by from Just Spray [This review was collected as part of a promotion.] My favorite part about Flex Seal is how you just spray it and let it do it's job. I used it to patch up a hole on the inside of our gutter. It was a great way to fix a hole quickly, and effectively without too much effort.
Date published: 2019-12-04
Rated 5 out of 5 by from Amazing Product [This review was collected as part of a promotion.] I have a camper that was leaking and I sprayed this on the roof of the camper and now my camper stays dry. I honestly was very hesitant when I seen the commercials for Flex Seal, however i am now a customer for life.
Date published: 2019-12-04
Rated 5 out of 5 by from Handy in an emergency [This review was collected as part of a promotion.] It works, it isn't pretty and it gets everywhere but it works, which is really what matters most. Can goes a lot further than I thought too. I assumed it would require many many layers/applications which would empty the can quick but I was able to seal the busted pane in the shed window with one application and there is still PLENTY left in the can. I could probably have avoided the overspray mess with a bit of forethought and some cardboard or paper. Next time!
Date published: 2019-12-04
Rated 5 out of 5 by from Great product [This review was collected as part of a promotion.] I was not expected that this product , was so marvelous and awesome, it’s like rubber or latex in spray , the Flex seal , sealed all the cracks in the hose of my car and it’s very fast acting, you need to wait 24-48 hours to reapply a 2nd or 3rd layer of product to be secure that the Flex Seal Covers all the cracks and breaks , I think the Flex Seal are amazing to other jobs like , leaks in hoses, roof and why not in the kitchen or bathroom. I’ll definitely recommend Flex seal , because of easy use and easy application.
Date published: 2019-12-04
Rated 4 out of 5 by from Works as advertised [This review was collected as part of a promotion.] I sealed a cracked birdbath with product. Went on alittle thinner than expected, just put on multiple coats to achieve seal. Would recommend to friend in a pinch. Plenty in can too for future projects or repairs.
Date published: 2019-12-04
Rated 3 out of 5 by from it works so far. [This review was collected as part of a promotion.] It comes out a little more watery than I expected, but it seems to hold alright. I haven't tried painting it yet, but it does kind of remind me of mix of a rubber coating and a spray in bed liner. It seems like having a nice warm dry environment is a must have for application. I used it to replace some exterior caulking, and while it worked I haven't had time for a long term comparison.
Date published: 2019-12-04
Rated 4 out of 5 by from this is effective [This review was collected as part of a promotion.] I used this to help seal the hole in my garage and my sink and it worked perfectly!! definitely recommended!! it last very long too and it's very durable!! the color is perfect for darker places. if you have white wall or background, use the white one instead.
Date published: 2019-12-04
Rated 5 out of 5 by from Works great [This review was collected as part of a promotion.] I do many DIY projects at home and this spray on Flex Seal works wonders for repairs and cracks. Not messy at all. Fills holes and cracks great and once dried and set is very durable and holds up strong. Never had any problems with water leaking through.
Date published: 2019-12-04
Rated 5 out of 5 by from The best sealing product available! [This review was collected as part of a promotion.] I have a decent sized leak on my roof(chimney flashing) and everything I've tried will not stop it, caulking,tar, and silicone......,enter flex seal...one can of black flex seal has fixed my problem permanently ! The spray can is inexpensive,convenient,and worth ever penny! I can not recommend this highly enough...if you have a problem similar to mine you would be hard pressed to find a better product. Thank you flex seal!!
Date published: 2019-12-04
  • y_2022, m_9, d_26, h_20
  • bvseo_bulk, prod_bvrr, vn_bulk_3.0.34
  • cp_3, bvpage2n
  • co_hasreviews, tv_9, tr_474
  • loc_en_US, sid_101898, prod, sort_[SortEntry(order=SUBMISSION_TIME, direction=DESCENDING)]
  • clientName_truevalue
  • bvseo_sdk, p_sdk, 3.2.1
  • CLOUD, getReviews, 8.8ms
  • REVIEWS, PRODUCT
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