








🛡️ Seal smart, stay flawless – the ultimate fix for cracks that won’t quit!
SIKA Sikaflex Concrete Fix is a paintable polyurethane sealant designed for durable, elastic sealing of cracks and joints in concrete, brick, stucco, and metal. It offers ±35% joint movement flexibility, waterproof protection, and meets federal standards, making it ideal for professional-grade weatherproofing and structural repairs.







| Material | Polyurethane |
| Brand | SIKA |
| Style | Cartridge |
| Item Weight | 16 ounces |
| Item dimensions L x W x H | 11.5 x 2 x 11.5 inches |
| Water Resistance Level | Waterproof |
| Item Form | Paste |
| UPC | 033886002639 033886093927 |
| Unit Count | 10.1 Fluid Ounces |
| Global Trade Identification Number | 00033886002639 |
| Number of Items | 1 |
| Color | Gray |
| Surface Recommendation | Window |
| Product Dimensions | 11.5 x 2 x 11.5 inches |
| Item Weight | 1 pounds |
| Manufacturer | SIKA CORPORATION |
| ASIN | B000UVHN86 |
| Item model number | 187783 |
| Date First Available | January 16, 2007 |
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
R**.
Excellent for driveway joint fill!
Very please with the ease of use. Covered with ease thick, but flowed well...fingers crossed it holds up to 4 season use.
D**R
Self leveling
Great for smaller driveway cracks and self leveling
L**J
Very good product!
Used this to fill the fine cracks that developed in my pool deck. Worked great! Highly recommend.
P**A
Great quality
By far the best, longest lasting concrete crack repair I've tried.
C**N
Easier to use than ordinary concrete cauik
We have used this Silka Concrete fixer to fill in the expansion joints around our sidewalks and driveway. We first cleaned out all of the old "caulk" and debris, then applied this new caulk. Because of it's consistency I found that it is so much easier to use with a caulk gun. When you release the trigger and back off the plunger, the caulk stops coming out. This made the job so much easier. I was able to use the back of a plastic spoon the smooth out the caulk.
E**G
The sealant that stuck with me literally
If duct tape had a smarter, stronger cousin who went to trade school and never calls out of work—it would be Sikaflex.I used this stuff to seal a gap in my foundation, and it stuck like it had a personal vendetta against air leaks. It’s thick, weatherproof, and so sticky I’m pretty sure if I dropped it on my driveway, it would become part of the driveway.It cures slow enough that you have time to fix mistakes (thanks for understanding, Sikaflex), but once it sets? Game over, that joint isn’t going anywhere. Wind, rain, time, regret—nothing breaks this bond.Word of warning: wear gloves unless you enjoy explaining to people why your hands look like you lost a fight with a tar pit.Whether you’re sealing cracks, joints, or a DIY mistake you swore you could handle alone—this stuff’s got your back.
R**.
Bad from the start
I hope I got a bad batch, 2 of the 8 containers burst at the seams and made a horrible mess, after I waited a few days for it to finally dry it still has a really cheap feel and appearance when you walk over it. Not impressed, waiting for the rain and heat to peel it up so I can start over with another brand.
Trustpilot
1 month ago
5 days ago