Sikaflex 1C SL 10 oz Limestone - Concrete Expansion Joint Filler, Self Leveling, Polyurethane Sealant. Pack of 12. 10 oz Applicator Gun Included

Used for cracks in concrete to seal out water and future ice damage. Used also along a walkway border and a brick wall. Found this a very good product that will self level and looks good after.

Perfect balance of liquidity to thickness and easy to apply. Be careful if you delay for a few seconds as it keeps running out of the gun, so I held the top down in the concrete expansion joint while I maneuvered my body so it wouldn't drip elsewhere.Best to sit on the concrete while applying to keep close control. Suggest using a pulling motion toward you as you fill the crack with the bead. Given it is elastomeric means it has some inherent stretchiness so you can pull it a little faster than it flows in order to make a skinnier bead to fill a narrow crack.Also if the surface is level then it does not run off the edge. It takes a few minutes to self level into the crack though I came back later to reapply small amounts here and there for tiny spots that I missed or where it did not self level. Better than over-filling.Be sure to use foam backing to mostly fill the cracks first leat you waste caulk and your $ income. Our expansion joints had not ever had any caulk, except for around the pool, so we bought different sizes of foam backer to insert first.I read the product description from the company and it sticks to about anything. That is fabulous as we have really wide older caulk in some areas of our patio and took a chance to add this new caulk to it rather than fully remove the old. Would cost hundreds to replace otherwise (around perimeter of pool) - the only downside of this caulk is the price. Buying the case with the free gun was a help though paying more for the best caulk outweighs the initial cost given labor time and expected caulk longevity. (Love the design of the gun.)I wore thin plastic gloves but the end of one finger ripped and the caulk stuck to my finger, and would not wash off nor scape off without removing the outer layer of my skin. Turns a gray blue color and takes a few days to disappear on its own.Its color is a light gray with a hint of beige which will get dirtier over time and blend better with the concrete.We had already pressure washed and sealed the concrete pool patio, terrace and sidewalks most of which is stamped and therefore not smooth surface. That looks fancy but makes sealing and caulking more challenging due to unevenness.We just bought another case to finish our project. Cheaper than paying the concrete leveling company. Shelf life is a year if you don't use it all at once.Buy this brand, you won't be sorry that you didn't skimp due to cost.

.This is a very good product. I am currently using to replace the expansion joints on the concrete by the pool. Afternoon reading other review I also added sand to the top of the silicone to blend it to my existing concrete. The only issue is the expansion joints depth of 1/2 inch and width of 1.5 inches so I am getting 2 linear foot of coverage on a 10 on cartridge. It will cost about $600 for 3 24 cartridge boxes. I also bought a deWalt battery operated caulking gun dispenser. It doing great on my big job.

When applying, It does not flow as easy as claimed

Excellent product. Watch videos prior to help application.

Perfect and great price

We employed this product to seal the joints between bull nose brick and a concrete apron around our swimming pool. This sealant flows great, self levels, cures in several hours, and retains elasticity. I do not anticipate having to reseal these joints for likely 12 plus years or longer.

This is a very good Product and worked well around our inground swimming pool.thank you.