SIKASealant - Sikaflex Concrete Fix - Limestone - Elastic sealant for Cracks and Joints - Paintable Polyurethane - 299 ml

works great i have not tried it yet

Great stuff to fill in the cracks on my driveway. Easy to use and seems very durable.

It works, but has an extremely large nozzle that wastes material.

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.

Used to fill a crack on my front porch step, where the brick step meets the concrete porch. First cleaned the crack out with a wire brush. Second vacuumed the remaining dust and debris. Third applied masking tape to the outside of the area to be caulked for clean lines. Fourth applied with a standard caulk gun. Fifth pushed product into crack with my finger, recommend using nitrile gloves. Sixth added more product with caulk gun. Seventh smoothed to my liking with finger. Eighth waited thirty minutes and removed masking tape. A few weeks later I’m happy with the product, thick enough to fill in the crack very well, seems flexible, color is close enough to brick mortar for my liking.

Seems to work well, but is ridiculously difficult to dispense.

I used a different product last year that was more like a gritty concrete in a tube that did not survive the winter- cracked and fell out. I knew on the first application that this was the real deal- it comes out thick, levels well with a putty knife and stays put, even when filling vertical cracks in my front patio. I used backing for the large crack in my shed concrete pad and this filled in well and looks great. When dry it feels like it will flex and make it thru the seasons.

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.