Sealing concrete control joints

hey everyone this is Scott at slabright concrete lifting I wanted to share with you one of the other services that we offer which is joint and crack sealing of your concrete surfaces in this video we'll show you the tools that we use the material and some of the techniques that we use to seal those joints and cracks and give you a really nice looking concrete here are the basic tools that we use and materials for sealing control joints and fissure cracks in concrete surfaces we've got our backer rod and this comes in different sizes to fill in gaps we've got our Dow seal contractor's concrete sealant we've got a crack Chaser on a grinder that's a v-shaped diamond blade we've got our caulking knives another grinder with a wire wheel and our Makita battery operated caulk gun and a blower to blow any dust and debris off the concrete and out of the joints prep work of the joints is key to get the filler material to stick properly and so what we do in the most quick way that we found to do that is with a wire wheel on a grinder Chase is going to show you how to do this make sure you wear safety glasses while doing it [Music] as an alternative to the grinder with the wire wheel you can use a wire brush clean the edges of the joint so you get good adhesion things we use to fill up these large gaps is this backer rod and that just helps fill in that spot so we don't end up using too much sealant material we see Chase stuffing that in there to take up that Gap this comes in different sizes from a quarter inch on up to an inch and a half depending on the width of the joint that you're trying to seal now that the foam backer rod is in place and the concrete is clean of debris and dust we're ready to lay the sealant in the joint and finish it smooth the product we choose to use is this dowel seal contractor's concrete sealant it requires no primer and has great elasticity and is easy to Tool and work out so that it's a smooth finish find it at different suppliers across the U.S all right so here Chase is laying down a nice bead of sealant in the in the joint and uh and once he gets out late he'll do it smooth and see that nice even bead of material being laid how much sealant you put in the joint it's kind of depending on the depth and width but that comes with a little bit of experience [Music] because you will be doing it smooth first thing to do is to get the excess out and you can see chase you just sliding that knife across there like that it's got a box to wipe that off in yes there is a little waste that's why it's important to know how much sealant to put them in he's going to take his knife move that right out depending on the angle of the knife you can just how it works it takes a little bit of time to get used to it but once you get the angles figured out you can get a nice smooth joint if you watch Chase here he's constantly changing the angle but he's holding that knife and what that does is it uh either goes deeper or shallower depending on the consistency of the joint and how much material you've laid in there and allows you to smooth it out so that it looks good and it is adhered to both sides of the joint another thing he's doing is he's constantly cleaning any excess Material off the knife so that it also provides a nice smooth transition from one section to the other and you don't get sealant all over the flat surfaces of the concrete foreign [Music] foreign of sealing those control joints you can see how nice it looks this sealant is a little light to begin with but darkens as it cures and uh Blends in really nice can see the nice job that chase did smoothing that out and uh this will be ready to be driven on and or walked on in just a few hours as that sealant skins over and is not sticky anymore thanks for watching this video on how to sew your concrete control joints if you found this information useful please give us a like And subscribe to our Channel we'll see you next time

Channel: Scott Gillett

Views: 7,085

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Id: 46j75SAITko

Length: 9min 17sec (557 seconds)

Published: Tue Oct 25 2022