You did such a good job grinding and preparing the joints. One of the best I have seen. Then you totally screwed it up by using foam and sand. The ONLY acceptable filler under sealants is backer rod. It is mandatory. In order for sealant the perform correctly it has to be thinner in the middle and wider at the bonding surface. Hourglass shaped “) (“ without backer rod it is” l l” or worse. Why would you use non self leveling on the wide cracks? The self leveling is specifically formulated for traffic decks. The non self leveling is not.Adding sand to the top will cause it to fail prematurely. I’m a professional caulker and all of these things will cause the sealant to fail prematurely.
![HIWWHEE | OHM [Official MV]](http://i.ytimg.com/vi/OJJLtTLqLag/mqdefault.jpg)
You did such a good job grinding and preparing the joints. One of the best I have seen. Then you totally screwed it up by using foam and sand. The ONLY acceptable filler under sealants is backer rod. It is mandatory. In order for sealant the perform correctly it has to be thinner in the middle and wider at the bonding surface. Hourglass shaped “) (“ without backer rod it is” l l” or worse.
Why would you use non self leveling on the wide cracks? The self leveling is specifically formulated for traffic decks. The non self leveling is not.Adding sand to the top will cause it to fail prematurely. I’m a professional caulker and all of these things will cause the sealant to fail prematurely.
I like your stool!
Gross.