Rated 4.0 out of 5 by 7
Rated 5.0 out of 5.0 by lowpowerlab Pricey and painstaking to install but seems great
I bought this based on much research. But glad I did after seeing how other neighbors got their driveways "caulked" by professionals only for everything to peel out the following year.
I got the thicker variant as well for larger joints. I cleaned and filled the joints with sand then used my grill propane with an extension hose and self-ignite hand torch to apply it ($20 hose and $15 torch from HD also). On tight joints I hammered down the string to make it fit and dip flush with the surface.
I had to go inch by inch, helping the compound bond to the concrete with a screwdriver as it melted. But it forms a tight self leveling seal that will probably last a long time, unless the freeze/thaw will affect it which remains to be seen after this winter, however it can be reheated or added on to. The $60 torch they try to sell along with this material is useless, you will be on your knees or sitting on a bucket doing this job, each inch needs attention. It's a tradeoff but might save you from doing this every year or two, if indeed it will last that long (they say "permanent" solution). I tried to install it as well as I could heating the concrete and making sure the material boils into the crack and bonds to the concrete. Very large joins required 2 applications.
I also tried their black material which is available at the local HD in small reels, it's much worse on concrete, tends to overflow the joint after it's hot and makes a mess, also much softer when it's hot outside, this grey stuff is decently hard to the touch except when very hot outside - it becomes a little soft. I recommend this over other products and over the black variant (which is better for asphalt driveway). It's quite aesthetic and blends in with the concrete especially if the concrete is new.
September 25, 2013
Rated 2.0 out of 5.0 by Crybaby If it over burn it may damage your drive-way
The idea was good but there are some issue that may cause more problems than fix it. I find out that plastic wrap did not melt with the bottom part, when you burn the top will melt but NOT the bottom because of the plastic wrap. The best way is to remove the plastic before you put it in the crack but there is more work than I thought, also forget the burner use the heat gun much better.
October 17, 2013
Rated 5.0 out of 5.0 by Brady12 Great product if used properly.
I researched the product and found it was the best for my needs. The product worked very well and was easy to use. I used a roofing torch which I bought for $40.00 and a standard propane tank from my barbeque grill. I originally used a hand held torch which took about an hour to complete about ten feet. I do not recommend a hand torch. When I upgraded to the propane/roofing torch the process moved much faster. It ended up taking me about two hours to fill 225 x 1/2 inch linear feet.
This product is great and worked extremely well.
September 20, 2015
Rated 5.0 out of 5.0 by newhose On porch
I used this on my porch to fill the space in between the slabs. I heat the Crack Stix with map gas then I toss sand on top. Works for me quite well.
June 24, 2015
Rated 4.0 out of 5.0 by Robert concrete crack filler
I used this product and was disappointed in that it used a lot and took a long time to melt left a lot of scorched spots. I Also bought the black for the blacktop and that seemed to be thicker and melted much better.
May 26, 2015
Rated 5.0 out of 5.0 by FireEMS Great product.
Love this product. It worked better than I anticipated.
November 11, 2014
Rated 2.0 out of 5.0 by XDDR This stuff doesn't work
I made several attempts to use this product for expansion joints in my sidewalk. I found it difficult to work with and I also found the results to be poor. I ended up returning the product and getting something different.
July 1, 2014