How to Fill, Seal, and Repair Cracks in Concrete | Concrete Repair

welcome to sight creek pro tips how to fill and seal concrete joints or cracks when addressing how to fill or seal a crack or a joint the first thing we have to ask is what's the difference between a cracking concrete and a concrete joint the answer is very little a concrete joint you planned such as this demonstration on my panel here that's where i want the concrete to crack that's why it's called a control joint anywhere else that a crack pops up is a crack so both are a crack in that it is an opening in the concrete and the answers the same you don't ignore either both should be filled and sealed because it's all about stopping water intrusion from getting into the slab so when we are looking at the decision of what to do with applying the material we've got the first answer how deep is that crack if the crack is more than say three-eighths to a half an inch consider filling it with sand first leaving down that three-eighths to a half an inch of meat to fill with the with the sealant if the crack is wider consider using what's called backer rod [Music] now that we all agree you can't ignore a crack or a joint it needs to be sealed let's talk about what do you do for prep besides cleaning the slab and getting any loose debris out of the crack look at it and decide is this crack too tight to get in such as a a caulk like material if it is then take a hand grinder and simply start viewing out the crack so here's an example you can see on both sides of reality this one is a crack that's not been addressed it's kind of tight but you can get some materials in there the other side i went ahead and took a standard grinder and veed it out you're simply cutting a line that's clean to get enough materials in there to stay so that's it for your [Music] prep so now we're going to look at four satcrete products that will address the entire range of concrete crack repair solutions [Music] first up we're going to look at satcrete's concrete crack filler this is the remodeler's best friend it's so easy to use this product is designed for cracks up to a half an inch wide and you need to let it go no more than a quarter of an inch in depth so we're back to the sand fill trick if you need to always shake the bottle it's ready to go you're going to cut the tip and just simply apply to the crack it's like you're squirting ketchup out of a bottle the thing to realize about this material it's very viscous it looks thick when it starts but it pulls down in its own weight and will finish filling this crack from the bottom up so with that in mind let's look at a panel that shows you what's going to happen overnight and next morning so like i said as this material dries it pulls down into the crack that's what we've got here in our demo always plan on coming back the next morning to put a to put another layer to cap it off and then you can smooth it because it is water-based you can smooth it with your finger if you want to but you are going to need to finish filling the top the next morning [Music] the next product we're going to look at is satcrete concrete repair sat creek concrete repair is a latex caulk that's concrete colored and slightly textured sacred concrete repair is designed for an eighth of an inch wide crack to a maximum three eighths anytime the crack is deeper than three eighths we suggest you use sand to fill up the bottom of the crack before using the product let's look at some in action so there see it went in there very neatly it's a nice concrete color so the beauty of this being a water base is i can just wet my finger and perfect my repair i love this stuff it is true concrete caulk the next product we're going to look at is satcrete polyurethane non-sag sealant this product is designed for one-quarter width by one-quarter depth applications with the maximum depth of one half inch being it is a solvent based material remember your cleanup's going to have to be a paint thinner or some kind of a solvent cleaner non-sag means that this is a thicker stickier material and it will stay where you put it so in other words it will not run it does not self-level polyurethanes in the scale of good better best the family gets put into the best category because they're designed for lasting many years and they have a greater elongation life where they can actually stretch with the concrete and contract they dry semi-rigid but the key is it's more water resistant that's the whole reason to use the urethane family non-sags formulation would also allow me to use this specific one on a concrete wall or say i needed to seal around a concrete window in a foundation [Music] satcrete polyurethane self-leveling sealant this formulation is designed to go one quarter by one quarter now because of its self-leveling property you're going to need to look down in that crack if it goes on down you can't ignore that depth because it is viscous enough to literally go under the slab and you'll keep using material and using it and using it wondering what's going on always seal the bottom in some manner before you start using this material now once again this is going to be similar to our our crack filler in that it's on the surface but its weight is going to pull it down in the crack you can already see it happening it's already going it's leveling and going down into the crack so this is a great product if and as long as your application is somewhat flat you can't use this on the heel and you can't use this where your concrete has a deep pitch you're going to need to go back to the non sag for those cases so both formulations are very similar they're both polyurethanes it's just that the difference is one is meant to stay in place the other is meant to flow [Music] so we've just completed our review of sitecreed's concrete field solutions first was crack filler which is the remodeler's best friend we have our sacred concrete repair which is a true concrete latex caulk and then we have our polyurethane offerings in the non-sag formula for where you need it to stay put where you put it or the self-leveling version where you want it to be able to run and feel so if these four products we've got your concrete fill requirements covered [Music] you

Channel: Sakrete

Views: 164,883

Keywords: Sakrete, concrete crack repair, concrete crack filler, concrete repair, concrete filler

Id: jPhq0F7rkKU

Length: 8min 35sec (515 seconds)

Published: Fri Jun 03 2022