Sikaflex Self-Leveling Sealant, Gray Polyurethane, Fast Curing, for Concrete Expansion Joints, Waterproof, Paintable, Fills Cracks up to 1.5 in., 10.1 fl. oz Cartridge

this stuff works perfect every time. it's fluid enough to flow into the cracks and pools and levels perfectly. Excellent, durable, and the standard for self levelling sealant for pool coping/decking.

If you’re looking for a sealant that combines ease of use with long-lasting performance, look no further than Sika Sikaflex Self-Leveling Sealant. This product has transformed my concrete surfaces, providing a clean, durable, and professional finish with minimal effort. Why I Love It: • Self-Leveling Magic: The true beauty of this sealant lies in its self-leveling properties. Once applied, it flows smoothly into joints, creating a flat, even surface without the need for tooling. This feature is particularly beneficial for those new to sealant applications, as it reduces the chances of uneven lines or missed spots. • Durability That Lasts: After curing, the sealant remains permanently elastic, effectively bridging gaps up to 1.5 inches wide. It’s designed to withstand the rigors of daily traffic, weather fluctuations, and the wear and tear typical of high-traffic areas like driveways and garage floors. • Quick and Easy Application: The product is a one-component polyurethane sealant, meaning no mixing is required. It’s available in both 10.1 fl. oz. and 29 fl. oz. cartridges, catering to various project sizes. The application process is straightforward—just clean the joint, apply the sealant, and let it level itself. • Paintable and Weather-Resistant: Once cured, the sealant is paintable with water-based, oil-based, or rubber-based paints, allowing it to blend seamlessly with your existing surfaces. It’s also waterproof and resistant to aging and weathering, ensuring long-term performance. Tips for Best Results: • Surface Preparation: Ensure that the joint surfaces are clean, dry, and free from oil, grease, or any other contaminants. This will promote optimal adhesion and longevity of the sealant. • Use Backer Rods: For deep joints, consider using a backer rod to control the depth of the sealant and prevent excessive use. • Curing Time: Allow the sealant to cure for 3 to 5 days for full strength. During this period, avoid any traffic or disturbance to ensure the best results.

Great product. Used it for concrete joints for sidewalks and between driveway and garage. Make sure to use good painters tape and pressing the tape firmly in so that the self-leveling doesn't spill over your unintended area of concrete like I did. Also no to put back a rod and underneath the back of rod as necessary put sand so that you don't end up using too much of the sealant. I ended up using all 12 sealants for a three car garage scene and roughly 10 concrete sidewalks that are 4 to 5 ft and width. Very glad I have bought in bulk packaging as I was expecting some leftovers but ended up using all of them. Also make sure to let it dry 24 hours and also for the tape that are used to prevent spillage to remove those tape before the sealant fully cures. I peeled off the tape roughly around 6 to 8 hour of cure. I also test tried it on concrete cracks not sure how this will turn out but at least for now other than the aesthetic side it's a good piece of mind to know cracks are sealed to prevent further erosion beneath the cracks.

Great product, seals gaps in concrete well and seems durable. Take caution not to cut tube end opening to large as sealant will continue to run out of tube even after releasing the chalking gun handle.

This product is not for sealing vertical cracks and joints, horizontal only. I have a few wide gaps between slabs in my driveway and I was told that could undermine it and cause it to sink. I got some sand and filled in the gaps, leaving a half inch depth at the top. You put this stuff in your caulking gun and then basically just pour it in. It's a little thicker than honey and it will flow and fill in the area so you don't need to be as precise as with regular caulk. Just move along, allowing the caulk to ooze out as you go. It is self leveling and self sealing because it flows and makes contact with all the sides. It is supposed to remain stretchy and keep the water out for a long time. I can't say anything about that because I only just applied it but it has dried to a rubbery consistency and it looks great.

Positive: Works really well. Self leveling. Takes about 5 full days to dry before you can use the driveway. Blends well into the concrete ( Sprinkle some sand on it while its still wet to blend in). Negative: If you don't store the tube standing up, you will have a big air bubble inside and when you start squeezing, it will spurt out in a blob wasting the material and making a mess. Very hard to clean up spills. Recommended.

After trying a cheaper product that never really set up, I cut out the failed product and used this. AMAZING difference. This product will self level, sets up in 24 to 36 hours in direct sunlight (hot temps) and leaves a firm, gray rubber like finish. This is my go-to product for all future driveway crack repairs. So glad Amazon carries this brand! The 29 oz tubes showed up in good condition and was a breeze to apply except for difficulty squeezing the caulk gun handle on the last 1/2 of the tube. I used 2" masking tape to mask off the crack for a tidy looking finished job. I first cleaned out the crack, filled half way with sand, then backer rod, then crack filler. I slit down a pool noodle for backer rod material. Warning; when you let off the gun handle and release pressure, the product will continue to ooze out the tip so have something ready to catch the drool so your project looks professional when completed. Moving forward I will always choose this product and highly recommend it. This stuff makes me look like I know what I'm doing ;)

1 star and it should be 0 Stars Horrible experience from start to finish. The product arrived looking used, abused, and filthy. The cartridge was dented, scratched, rusted, and in awful condition. It is completely unacceptable to send something out that looks like it has already been used and tossed around in a garage for months. Even worse, it does not fit a regular dispensing tool as the product description suggests. The tube is far too large, making it unusable right out of the box. So I received a damaged, apparently used product that does not even work with the standard tool it is supposed to fit. Now I have to waste my time and gas driving to UPS just to send it back. Total disappointment. Misleading listing, terrible condition, and a complete waste of time.

This product is so much better than my highest expectations despite my high regard for Sika products. It is so forgiving to work with and literally gives one so much time to make corrections. The reason being it only skins much later than one would expect. Quite extraordinary.

Just the right sealant I needed, I like the self leveling action. Just make sure you clean the gap/crack then pour it

This stuff was better than I thought it would be! I actually didn't use it for concrete I used it in between two layers of mahogany trim on the hull of a 12 foot fiberglass boat. Outside of the fact it took three days to cure enough to sand it is the exact result I was looking for. There were a couple places where the wood trim was damaged underneath and it leaked down the side of the hull, Where I was able to see it it cleaned up nicely with water and a rag where I didn't see it and it cured It was more difficult to remove I was able to do it with a razor blade. I havent finidhed yet to show the final result / Update The product hardened up nice and was easy to sand (didnt even clog the paper. Only issue the Epoxy Did NOT cover this product It Pooled up and cured in a sporatic patern. I would still buy again... it would be nice if I could figure out why the epoxy would not cover and fix that..

El producto es justo lo que esperaba. Le doy cuatro estrellas debido a que llegó abollado de la parte inferior, pero funcionó correctamente. Ojo con las instrucciones, el tubo no entra en una pistola de silicón convencional, es necesario comprar una más grande.

It got shipped from US to Australia in 2 weeks. Fills in the gap and self levels. It more fluid than expected.