Model # 427706

Internet #203249445

Store SKU #652010

Sikaflex 10 fl. oz. Crack Sealant
0033886064514

Sikaflex

10 fl. oz. Crack Sealant

  • Gradually self levels into crack for a flexible finish
  • Textured to blend with concrete surface
  • Permanently water immersible after cure
$7.48 /each

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Product Overview

Sikaflex Crack Flex Sealant is a one part, polyurethane sealant for permanently repairing cracks in horizontal concrete surfaces. It can be used in cracks up to 1 in. wide and provides long term durability. Its elastic technology formulation allows the sealant to remain flexible and move with the crack.

California residents: see   Proposition 65 information

  • Gradually self levels in the crack
  • Water immersible after cure
  • Forms a permanent watertight seal
  • Textured for added density

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Customer Questions & Answers

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Customer Questions & Answers

10 fl. oz. Crack Sealant
10 fl. oz. Crack Sealant

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5 answers

can this be used to repair cracks in garage floors

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Red Lion, PA
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July 14, 2016
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Asked by
Red Lion PA
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August 23, 2016
Answer: 
After reading the answers to my question I used it to repair a large crack in one of the garage floor slabs caused by settling. I cleaned the crack with a brush followed by vacuuming then filling it a little at at time adding more as the material settled into the crack but before it cured. It worked great and I actually used less than I thought I would based on prior comment by others.
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Concord, NH
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August 22, 2016
Answer: 
Yes if it's concret yes you can, just make sure cracks are cleaned free of debris before you use it.
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July 15, 2016
Answer: 
Hello and thank you for your question. Yes, this can be used to repair a crack on a garage floor. The minimum crack width and depth would be 1/4" by 1/4". Please copy and paste the link to go to Sika's page for residential sealants. Find Sikaflex Crack Flex Sealant and view the product data sheet. Link: https://usa.sika.com/en/residential/residential-pim/02a024/02a024sa008.html
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July 15, 2016
Answer: 
Hello and thank you for your question. Yes, this can be used to repair a crack on a garage floor. The minimum crack width and depth would be 1/4" by 1/4". Please copy and paste the link to go to Sika's page for residential sealants. Find Sikaflex Crack Flex Sealant and view the product data sheet.
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Asked by
Chesterfield VA
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July 15, 2016
Answer: 
Yes
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4 answers

can you add another layer of sika pro self-leveling sealant on top of existing layer

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Asked by
El Campo TX.
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October 2, 2015
did not get the correct depth on first layer
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October 25, 2016
Answer: 
I did. Seemed to be OK.
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Asked by
Concord, NH
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August 22, 2016
Answer: 
Yes you can & I have done it, just make sure existing sikapro is cleaned before applying the new layer(s).
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Asked by
Chesterfield VA
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July 15, 2016
Answer: 
I have done this several times over the years [cracks in my aggregate driveway] and it seems to do just fine.
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October 2, 2015
Answer: 
Thank you for your inquiry. Yes, you can add another layer of Sikaflex Self Leveling Sealant to an existing layer of the product. Make sure that the first layer is clean, and free of debris and dust. Good luck with your project.
Sika Retail Team
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What is the TOTAL curing time for this product? I did see where it said 2 hour dry time but dry to the touch is not total cure time.

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San Diego
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September 16, 2016
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Asked by
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October 25, 2016
Answer: 
I waited 18 hours to drive on it and it seemed to work well.
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Asked by
Concord, NH
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September 19, 2016
Answer: 
Wait at least 24 hours for curing time for this product. Temperature should be dry & above 50F (10C) for proper application. For a best result make sure you follow all directions on the back of sealant tube. Good Luck!
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September 19, 2016
Answer: 
Hello and thank you for your question. A full cure can be reached in 5 to 7 days depending on humidity levels. The higher the humidity, the faster the cure.
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3 answers

Can sikaflex be used to fill cracks in blacktop. Don't care that it is grey only. Used this on my concrete around my

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August 21, 2016
Pool. It is a fantastic product.
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August 24, 2016
Answer: 
Hello and thank you for your question. Asphalt has oils which release over time. These oils are bond breakers for polyurethane sealants. Sika does not recommend applying on asphalt for that reason.
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Asked by
Concord, NH
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August 22, 2016
Answer: 
Sikaflex it is a great product. I don't see why not work with blacktop! But remember blacktop it is more flexible/softer than concrete, so it could work or it could NOT work as longer as with concrete do!!!!
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Asked by
Chesterfield VA
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August 21, 2016
Answer: 
An expensive, but effective, solution.
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Customer Reviews

10 fl. oz. Crack Sealant is rated 4.7 out of 5 by 25.
Rated 5 out of 5 by from Product went on really easily. Seems to be very durable. Time will tell as to how well it will ho... Product went on really easily. Seems to be very durable. Time will tell as to how well it will hold up against the brutal summer sun and heat of the south. It's fairly runny, so you should definitely use backer rod if you have a fairly big hole to fill.
Date published: 2016-10-25
Rated 5 out of 5 by from Not cheap, but the best! Follow directions. This is a professional product. Easy to use and apply. It is for horizontal cracks only, don't expect it to work on slopes or verticals. Start slow and go over as you need. Adheres great and lasts. This is not typical caulk!
Date published: 2016-10-02
Rated 5 out of 5 by from Concrete Pool Project Great product to fill cracks in pool deck. Power wash first, wear gloves when filling cracks. Let set for a week or more then power wash deck before painting concrete.
Date published: 2016-08-08
Rated 5 out of 5 by from Great Product Preparation of the crack was the hard part. This sealant is somewhat self leveling. A putty knife is required. You will want to check it as it sets up as it does flow into the crack and you may need to add more sealant and smooth with the putty knife again. It was slower curing than I expected. This was done in my son's house in Phoenix, AZ where it is dry, so I expected it to cure faster. Not drying so fast may be good if it is a long crack as it gives you time to work with it smooth it out. The crack had variations in width to be fair to the product. I had very satisfactory results. Home Depot sells a pair of Gorilla gloves, that worked well in protecting my hands and survived to protect another day. I cleaned the putty knife with a wet paper towel. Cut the very tip of the tube as it will give you more control of the sealant.
Date published: 2016-05-31
Rated 5 out of 5 by from Best In Class - Have Used Sika for 5 Years I've been using this product for over 5 years to seal driveway cracks and it dispenses and holds up much better than 2 similar products I have tried. The competing products are harder to pump out of their cartridges (which is important if you are using a lot of tubes) and they do not have the flexibility and long-term elasticity of the Sika sealant. Be sure when you use this that you first fill the crack with a pre-filler (my favorite is limestone base because it compacts) else you'll waste the sealant down the crevice of the crack, which is expensive. Also, if you live in a cold climate, never let the sealant fill above the level of the concrete, else your snow shoveling equipment will snag it and pull it out.
Date published: 2013-06-04
Rated 5 out of 5 by from concrete crack/joint caulk This stuff works to seal the gaps which allow water into your slab joints. Which freezes and buckles and cracks the concrete slab. If the crack is deep you'll need to put filler into the crack first. HD has special closed cell foam strips made for this in several sizes which cut with scissors easily to stuff into those cracks so you only fill an area about 1/2x1" to conserve the sealer. I use a wood paint stirrer stick to stuff the crack. This stuff stays runny(self-leveling)for several hours. It will keep disapearing down that gap unless its partially filled first. It may take a couple of days to cure to its tough rubbery texture. You must cover it up with something to avoid walking on or driving over during full cure. I found that wide painters tape worked for me. This is difficult to get off your hands and everything it touches. Be neat and careful, wear gloves. Suitable solvents are pretty harsh on skin like xylene, acetone, fingernail polish remover, etc. Soap and water doesn't do to much. Once cured this stuff is stuck to whatever it's on about as tough as tire rubber. It's elastic and will move with the crack to a limited extent. I had an area of several inches let loose on one side. I cut out as much as I could with a box cutter and filled it back up with the Sikaflex. A very effective product which works. Comes in small 10.1oz caulk tubes and mega 29oz tubes.
Date published: 2013-04-29
Rated 4 out of 5 by from Not So Long-Term I use this product to fill the "not-so-hairline" cracks developing in my exposed aggregate driveway. The best feature is its 'self-leveling' attribute ... squeeze it not-too-carefully along the crack and don't mess with it. It 'levels' so well, you'll probably need to go back over the cracks in a day or two. Needs improvement areas: the 'sand' color is too bright for exposed aggregate; its 'plasticity' lasts only a few years after which the normal expansion and contraction on the aggregate will crack the seal and you'll need to reapply. But I haven't yet found a better product.
Date published: 2013-11-13
Rated 4 out of 5 by from fixed my crack I had a big nasty crack in my concrete driveway, I used this product to fill the gap. The directions say to just put it down on the crack with a caulking gun and let it sit. It is self leveling. After the fact I kind wish I would have used a putty knife on it to level it out. It kind has a little pump where the crack was. Look at my pictures and you can see what I am talking about. It seems durable though, and I don't expect it to fall off or anything. All I did for prep was sweep the cracked part of the driveway with a broom.
Date published: 2013-09-25
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