Rated 4.4 out of 5 by 8
Rated 5.0 out of 5.0 by MGonz Awesome
Use this to seal expansion joints in concrete (where two pads of concrete meet). Most of the time these gaps are about 1/4"-1/2" wide, and not too deep. Have used this product about 5 times now...Although it says to overfill the joint to allow for shrinkage, i find that under filling it is best, or else you will get some running out of the joint, and is a pain to clean up. So under filling is best. Also, no tooling or smoothing out needed like regular caulking/sealants - just move steadily side to side in joint, working your way back. Its like magic almost - levels itself! Avoid traffic for about 1 day min - remains tacky for a couple days.
February 10, 2012
Rated 5.0 out of 5.0 by PompanoJoe This stuff works!
I have a shuffle board court in my back yard, probably a remnant from the 60's. It had a number of hairline 8' cracks and one crack about 1/2 wide. I tried hydraulic cement, that just cracked again. I used this product on all of the cracks, let it sit in Florida winter weather (70's) for week and painted over the top.
Can't even see the repairs. Now I have a large patio that looks great. Make sure you don't get product on your hands or clothes - buy some cheap plastic spatulas and when the job is done, toss them. Nice product.
December 7, 2014
Rated 4.0 out of 5.0 by JimG Pretty good stuff
I filled an 18 foot expansion joint in my concrete patio. The gap was pretty wide, so I bought the Sika backer rod, which covers a 3/4 inch gap. The sealant is pretty expensive, but HD stocked the 30 oz tubes, equivalent of 3 regular tubes, and these were priced at less than the price of 2 regulars.
I found this to be a slow laborious process, and I spent hours longer than anticipated.
Please!! don't get this stuff on your hands. Cleanup took a good chunk of the time doing the job.
I bought three large tubes, and used them up. A pretty expensive filler. Overall, it looks good and I don't anticipate having to deal with it again.
October 19, 2014
Rated 5.0 out of 5.0 by dougm6231 Excellent for driveway cracks
It is indeed self leveling. Within 30 minutes it had flowed deep into the cracks and begun to set uo. In areas where it settled quite deeply, it was easy to apply a second bead. This is the best driveway crack filler I have ever used.
October 5, 2014
Rated 5.0 out of 5.0 by JRiley Easy to use
Very simple product to use. I didn't need to smooth it out at all. The product leveled out perfectly. I did follow recommendation and used the backer rod in the joint to avoid it from flowing all the way down into the joint.
August 17, 2014
Rated 5.0 out of 5.0 by ExpansionJoint Very good stuff
I filled an expansion joint with it and did a good job. If you add more on top of the first layer, it will blend in smoothly. Be aware though: it cures to a concave finish. Even though the liquid may look flat when fresh, the dried material is concave. I was able to put down 100% solids epoxy on top of it. I am planning to use it with backer rod on concrete driveway expansion joints also.
August 13, 2012
Rated 4.0 out of 5.0 by Stephbob Really works great but prep is everything...
I have a large gap between our cement driveway and cement block foundation. The felt-like slabs of stuffing that the driveway contractor had installed were cracking and rotting out. My interior basement walls were beginning to show the effect of exterior moisture - tiny flakes, moisture, etc.
So, being a librarian, I did extensive research on what to do. I learned that you MUST have a product that expands and contracts.Don't use flashing. Don't use caulk. And don't use that awful stuff that you have to melt with a propane torch.
You must have 100% adhesion to both sides of the gap with an hourglass-shaped plug of sealant - that is, NO adherence to the ground. Ideally, 2x width to the center depth.
My problem was that, although I stuffed the crack with backer rod(s) and had it perfectly arranged, the Sikaflex just flowed into any tiny hole and disappeared. So I bought clean sand and put that on top of the backer rod. I was scrupulous in preparation, and vacuumed the crack, brushed the sand away from the vertical edges, and made sure I had a good seal. I had to use 7 tubes for our 47' wall. The Sikaflex is the consistency of Elmer's glue - it just moves a little slower. We'll see how it works - I live in Michigan, and the crack is along the cold, wet north side of my house!
October 25, 2012
Rated 2.0 out of 5.0 by steve unimpressive product
My first experience with this product/brand. Product is thin and is definitely for horizontal surfaces only [as per manufacturer's direction]. I was filling horizontal cracks in mortar joints between concrete pavers about 1/16" wide and the product initially filled the cracks but then flowed down into the crack leaving a very visible and still open joint that required a 2nd application to fill. The color is a light gray and does not correspond color wise to most cured concrete or untinted mortar joints. I added a light coating of darker gray mortar sand on the surface of the still wet bead that darkened the joint and helped hide a repair that was obvious from 10' away!. The manufacturer did not bother to put the cleanup info or what the product solvent was on their labeling! I had no idea how to clean up the drips etc and had to go to the manufacturer's/Home Depot product information sheet to find out!
May 30, 2014