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🔧 Seal smart, live worry-free — the ultimate fix for cracks that move with you!
SIKA Sikaflex Concrete Fix is a high-performance, paintable polyurethane sealant designed for sealing cracks and joints in concrete, brick, stucco, and metal. It offers exceptional elasticity with ±35% joint movement capacity, waterproof protection, and strong adhesion to multiple surfaces. Packaged in a convenient cartridge compatible with most applicator guns, it meets federal standards for durability and safety, making it the go-to solution for professional-grade weatherproofing and crack repair.













| ASIN | B000UVHN86 |
| Best Sellers Rank | #5,479 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #1 in Concrete |
| Brand | SIKA |
| Brand Name | SIKA |
| Color | Gray |
| Compatible Material | Brick, Concrete, Metal |
| Customer Reviews | 4.4 out of 5 stars 924 Reviews |
| Global Trade Identification Number | 00033886002639 |
| Included Components | Crack Filler |
| Item Dimensions | 11.5 x 2 x 11.5 inches |
| Item Form | Paste |
| Item Part Number | 757201 |
| Item Type Name | Crack Filler |
| Item Weight | 16 ounces |
| Item dimensions L x W x H | 11.5 x 2 x 11.5 inches |
| Manufacturer | SIKA CORPORATION |
| Material | Polyurethane |
| Material Type | Polyurethane |
| Model | 187783 |
| Number of Items | 1 |
| Part Number | 187783 |
| Style | Cartridge |
| Style Name | Cartridge |
| Surface Recommendation | Window |
| UPC | 033886002639 033886093927 |
| Unit Count | 10.1 Fluid Ounces |
| Water Resistance Level | Waterproof |
C**0
Great sealer for stucco
Worked well with stucco and cinder block home.Husband had to close 2 holes on our home.Filled crack with no problems, no mess, easy to use.Great value for money.Would highly recommend..
P**7
Phenomenal sealant!!
Excellent product for concrete repair. You can apply it to wet surfaces or concrete that hasn't cured. This has an elastic bonding property that will allow it to fill and also flex when hot or cold.
G**R
Seals Well
Used this for my stress risers in my concrete garage floor that have cracked and allow moisture into my garage from under the floor. It is self-leveling and does a nice job. Just make sure to clean the grooves first and use a good caulking gun. No more moisture on the humid days on my garage floor which used to be very slippery when it happened.
J**H
Easy to use
Very easy to use and helps Ina. Crack that could continue to spread.
R**G
SIKA makes good concrete sealants
This and SIKA’s self leveling sealant both work very well to seal cracks in concrete. I found this easier to work with for thinner cracks than the self leveling sealant, since it is easier to control and stop the flow when not in use. The self leveling version works best when the entire caulk tip fits into the crack and the “flow” of the sealant can spread out into the crack and self level without making a mess. My only complaint is that the limestone color is really a light gray. It’s pretty much the same as the self leveling gray color and doesn’t blend perfectly with the limestone color of most concrete. For this, I would give it 4.5 stars. Tip: A little sand sprinkled and rubbed in after application helps it blend better with the concrete texture and color.
A**N
Great product, withstands weather conditions great !
Durable product, color does match as advertised, thickness is very thick, does seal concrete as advertised great, easy to use load in gun and proceed with project, recommend size now my personal opinion is for a smaller project due to does not last forever will possibly need more then one tube but is very strong, durable to weather conditions and I would recommend
B**T
Look at the date code before you use this product - one dried out and not usable.
Bought 3 - 1 was past date code and dried out. The the other 2 work great. Now I am short 1 to finish my project. Now I have to figure out it I want to go through the trouble of returning the bad one or eating the cost.
C**Y
Seals like a Pro
Excellent product. Even my contractor was impressed with it
G**A
Sika sellador
Sellador, facil de usar, excelente calidad y precio
S**O
Professional grade.
Used this sealant to repair a few cracks around my concrete steps and seal some joints on an exterior wall. The application was straightforward, and the material came out of the cartridge smoothly without making a mess. It adhered very well to concrete and metal surfaces without needing any extra prep work. Once cured, it remained flexible while creating a strong, weatherproof seal. After a few days of rain and temperature changes, everything still looks great with no signs of cracking or shrinking. A durable, professional-quality product that saved me both time and effort on my repair project.
F**.
Bien!!!
Tal cual se describe el producto funciona , sella super bien .
A**R
Sealer !!!
Fabulous sealer. It stays flexible and should last many years. Trawled after I spread it on and dry to touch after 1 day and fully cures after 7 days but not hard, exactly what I wanted. Amazon price is cheaper than my local hardware store.
S**D
Un peu dur à appliquer
Excellent mais il étais difficile à sortir du tube j’avais un pistolet de pietre qualité mais il s étale bien avec une spatule sur la fondation qui fait un travail propre
Trustpilot
5 days ago
1 month ago