10 Best Concrete Adhesive for Strongest Bond in 2021

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Do you want to heal the crack on the surface of your building?

Do you want to resolve the crack lines with stiffness?

Are you worried about the chemical reaction, that might be harmful to kids and adults at home?

If your answer to the above questions is yes, then you need the best concrete adhesive for your home. The concrete adhesive helps you in resolving the cracks on the surface of your building by adding stiffness to it. It is completely safe to use and has both harmful reactions. Following are the 10 best concrete adhesives listed below:

Shortlist of 10 Best Concrete Adhesive in 2021

Buying Guide for the Best Concrete Adhesive in 2021

High holding power:

While you are planning to but a concrete adhesive, you must make sure that it has a high holding capacity as this feature will decide how good your product is. You must search for the product which requires less number of screws and nails for the repair jobs. For the paneling as well as the projects related to fiberglass reinforced panel, you must be allowed to use the concrete adhesive. It must be certified for good air quality and also must be safe for your children. It must have some flexibility and must depend on the surface and has also good holding power.


Make sure that your product is a blessing in disguise as it must have no smell which is very sensitive for allergic people and you must be sure that it is odorless so that it has no harmful reaction on your family members who are sensitive to the strong smell. Furthermore, you must look for the concrete adhesive which has more polyurethane and is more flexible so that it has its holding power on the plastic as well along with woods, metal, glass, fiberglass, etc. Your concrete adhesive must be chemical resistant so that it does not show any reaction with the surface which have to dilute acid or any dilute caustics on it.

Child- friendly:

Before placing an order for the concrete adhesive you must be sure that your product is child friendly and is safe for your child at home and more importantly, it must value money as a product. Along with the high durability, it must be thick inconsistent so that it can fill the gap very well and would not break. Your product must be valuable enough so that it can resolve the crack lines by adding the stiffness to it in the required amount and therefore you can use it in the sheetrock crack as well.

Quickly dries:

The most significant feature that you must look into your concrete adhesive is that it must dry quickly so that you can save your time and efforts. Your product must be capable of working well on the wet surface also. It must be efficient enough so that it can work with different kinds of mixes easily and can seal the wall efficiently which makes it more versatile. Your product must allow you to use it in the interior as well as an exterior place without getting any damage and must be durable in work so that you can relax for years under the same concrete that you bought.

Great gap-filling:

The property of gap filling is a necessity, you should look for in the concrete adhesive. The reason behind this is that this characteristic will decide how strong your concrete will be. Your product must be able to bind it so vigorously and must allow you to use it on the paint walls. Furthermore, for a perfect concrete repair, you must apply your product to the patching compound. It must be etched enough so that it can help you in working on the repair part very easily. It must be reliable so that it can bind the old concrete with the new concrete very effortlessly.


You must make sure that your product is 100% waterproof in character so that it has a good holding capacity even if the surface is wet or if the concrete is exposed to exterior environments such as rain. The concrete adhesive that you are planning to buy must have a strong bonding glue which must allow you to work easily on the wood, glass, and even the foam and must also permit you to repair the same. For filling up the gaps unevenly, your product must get expansive just after you have used it and with this feature, you can save a lot amount of your product.

Easy to clean:

Out of everything, cleaning the mess is a heavy task so you must look for the concrete adhesive which is easy to clean after the surface gets messed up. In case, you are going to use your product for the merging of non-porous material, you must mist it with the water. It is recommended to wear gloves while using your concrete adhesive as it may get stuck between your fingers and gets sticky. It must be so strong so that it can bind anything and work easily on any surface according to your requirements.


Just after that, your product has been set, you must expose the surface to the freshwater and it must not get damaged because of its resistivity towards the water. Your product must be a multipurpose type so that you can use it on either the wet-dry or even tell frozen lumber. Your product must be reliable which must be comparably more than the metal nails.

Temperature resistant:

Your product must be capable to bear both the interior and exterior surface and it does not matter if it is extremely hot or cold, you can expose it. So, it must be resistant to temperature. It must have strong binding formulation so that you are allowed to use it on the exterior environment also and in any weather condition. While using your concrete adhesive, you must make sure that the surface is free from any dirt, grease, or oil and is clean.

FAQs on Best Concrete Adhesive for 2021

What are the types of structural adhesive?

There are many types of adhesive such as epoxy, acrylic, anaerobic acrylic, and many more. The epoxy adhesive is said to have appropriate shear or tension and can act as a good mechanism for resistance. It is also resistant to high temperature and some harmful chemical reactions and for this type of adhesive, the reversibility of glue is possible. The acrylic adhesive is good in spellings and the gas and also has enough amount of shear or tension to act as the mechanism for resistance. The anaerobic acrylic adhesive can be used as the thermosetting and single component of paste.

When is the Epoxy adhesive used?

In case, if you need the high mechanical strength then you can opt for the adhesive which has the quality of the epoxy one which is good in the aspect of shear or peeling. This type of adhesive is available in the market in the format of a single or two-component of paste. To polymerization, the single component-based of the epoxy adhesive you require is the temperature between only 100 to 200 degrees Celsius and can easily be done in the oven within half an hour. The epoxy adhesive veg single component-based can be the best alternative for welding.

When is the silicone adhesive used?

When you need the high resistance to apply on the concrete material then you require the silicone adhesive. The high resistance silicone adhesive offers you with good dynamic efforts and is resistant to UV rays, very high temperature, and also to the solvents and these features help it in becoming the good sealing. For the good amount of moisture content, you can refer to the silicone adhesive with single component-based and if the humidity is already very low then the adhesive with two-component of paste is recommended. The mechanical strength of this type of adhesive is not very much great as compared to the epoxy adhesive.

When is the acrylic adhesive used?

If you are planning to bond the metals with the wood, plastic, and the glass then the type of adhesive which is suitable for this purpose is the acrylic one. The good mechanism for the resistance provided by the acrylic address is good but not as compared to the epoxy adhesive. However, acrylic medicine is less expensive in comparison to the epoxy. Furthermore, if you are using the paste with a single component of paste then it will take some time to settle but if you want the process to get faster than you can take the help of heating.

How to use concrete bonding adhesive?

Video Transcript:

How does concrete bonding adhesive work?

Well, when you think about what concrete is its water Portland cement and then aggregates mix together so if you were to do that if you were to mix those things together and you were to pour that end result on to some old concrete.

Well, the two actually will kind of bond together pretty well I mean if you were to take a hammer after it carries and start hitting them they’ll probably delaminate cleanly.

Because it wasn’t really a strong mechanical bond between the two but that’s how the process works so what is bonding adhesive.

Well, bonding adhesive is kind of the same thing that I just described it’s some Portland cement and it’s some water maybe even a little bit of aggregate like sand but you’re also adding glue glue to the mix like white glue or carp yellow carpenters wood glue both of those would work if you make that mix of Portland cement and some water.

Maybe a little bit of sand and add a healthy dollop of glue let’s say at least 10% of the liquid content of this mix made up from this glue so if you were to add you know one liter of water that’s how much you would normally add to this mix in particular well then instead of adding one liter of water.

Add 10% less water and make up the difference with this liquid wood glue if you do something like that then you’ll end up with a bonding adhesive and that bonding adhesive is what you would use between a layer of old concrete and new concrete that you’re trying to get to bond to it if you found this information helpful be sure to like this video and subscribe to my youtube channel and you can check out my website swimming pool Steve calm.

When is the polyurethane or urethane adhesive used?

For the bonding insulation panel in the industrial building, the polyurethane adhesive is mostly recommended. The reason behind that is that they are very flexible and also offer a medium amount of mechanism for resistance as compared to the epoxy adhesive and are very much suitable to be used when the temperature is very high. If you want to polymerization the single component paste of the urethane adhesive then you need to provide it with enough amount of humidity. Also, if you want to reduce the time of the polymerization then you can apply your concrete at the same with the help of the heat gun.

When is the cyanoacrylate adhesive used?

The cyanoacrylate is mostly used when the concrete surface requires quick bonding as they are in gel or liquid form and also are good in shear or tension. To bond the rigid materials, the cyanoacrylate adhesive is used because of the setting of this type of adhesive act as instantaneous at room temperature and is in the liquid form. Moreover, there are different types of cyanoacrylate adhesive is available in the market according to the viscosity between high to medium which is good in diffusion by the capillary action. When applying on the vertical plane or the porous type of materials then the adhesive of glue type is suitable.

Can you Glue Hardwood Flooring To Concrete?

Video Transcript:

So today when I start putting down a solid white oak flooring on top of concrete here in my shop but let’s start from the beginning the one thing that I’ve really been wanting to change ever since moving into this space is the floor I mean it is a concrete floor it is fine but I really want to make this space feel comfortable and warm and welcoming and for that you really can’t beat wood so I’ve been looking around for a good deal I don’t want anything fancy but I would love white oak and I found a place locally here that sells utility-grade.

Pretty affordable white oak tree and groove flooring so we are gonna go into town and pick up quite a bit enough for downstairs of this whole shop enough for the upper floor and enough for the little shop as well.

So this is all the wood god.

So the begin we’re loading up the forklift on top of the truck but it was just too much weight so as you can see this is rustic and all the wood and just lots of little pieces but this time it was actually better it was all in the package war we’re putting this floor on top of concrete yes yeah so would you have any thoughts on that what would you recommend I would recommend at least a sleeper system sleepers are just they’re kind of like joists but put a vapor barrier down on top of the concrete before you put those down and then I put another vapor barrier on top of the plywood to vapor barrier yes okay vapor barrier furring strip OSB vapor barrier and then the chlorine.

Unless you wanted to glue it we have an adhesive that we stock that Bostic makes called the green force adhesive and you can actually create a moisture membrane with that and then it would glue this down directly no vapor barrier no you do that you could use that directly on the concrete.

It sounds like an easier process a faster process yeah so here we go 2,000 square feet of flooring so the guys at the Florence to recommend that the special blue which creates a moisture barrier and glues down the wood floor to the concrete so after thinking back and forth whether aiding an actual flooring which the one benefit with that is that you could do electrical through there which would have been nice but on the other hand everything gets risen up it’s a lot more work it’s a lot more material to bring into the shop so going this route with a glue seemed like an easier option so this is a pretty big space and there’s a lot of little pieces and the idea over.

Gluing one piece down at a time started to seem like a lot of work on the floor so we started thinking about this concept of gluing together panels of the small pieces using yellow blue and then gluing down to those complete panels with this new glue onto the concrete floor.

So I’ve been doing a ton of glue ups and there are like 12 panels ready to go right now.

So time to trim the sides make them nice and flat and even and then add tongue and grooves on the sides as well so this is working out good one of my newest additions to the shop is this little remote control for the desk collection and it’s the best no more walking around back and forth all the time having an on and off I have this controller it’s a really cool remote control transmitter switch works with all dust collectors up to one and a half horse powers and I have this little remote.

Let me tell you the show gonna be a lot of work I have enough panels right now to do like the first row maybe a little bit more maybe a lot of rows so next up here I was preparing to add tongue and grooves and all the sides with a router so the panels could snap into each other like the individual pieces do I started on the one panel and then I was like I think I’m gonna skip this step I mean you certainly could do it but the panels will snap together lengthwise and be secured with a glue and doing this step seemed like a lot of extra work that probably wouldn’t be necessary it might even make it more known to put the panels together so I figured I’d go straight to standing instead.

One of the main reasons why I wanted to put these panels together was to eliminate the amount of work you had to do on the floor and part of that was sanding in our old house in Oregon we sand down all the hardwood floors before moving in and yeah I just remember that being a real pain.

So instead standing each panel on top of the bench made a lot more sense now I always sand projects outside to reduce dust inside the shop but with this new setup this dust separator hooked up to my shop leg and a sander with dust control I was able to sand all these panels inside without having really any dust in the air at all and in my book that’s pretty amazing so today when I start putting down a solid white oak flooring on top of concrete here in my shop.

Mixed up cleaning so it was sent to vacuum this place real well and I’m using this floor sweep attachment again on the dust separator and the shop vac which worked great and this is mainly because my dust collection doesn’t reach in this corner.

However future plans I have types waiting to go up in the ceiling as well as this ceiling track system more hoses and yeah there’s gonna be a lot more dust collection axis moving forward now these are the times when you’re really happy that you put casters on most of the furniture makes it a lot easier to move everything around.

Assuming everything goes smoothly which of course we don’t know to have an useless product in the past but we were assured by the professionals that this product was supposed to be perfect for this Johnson if you can use it as a moisture barrier or not a moisture barrier the different row and the different travels for the different purposes so what does this cost and how many business go far so six about pride 240 250 square feet.

Kind of a mix between a peanutbutter pancake batter panel I’m just thinking about if you were putting down each individual piece you know each.

Individual little section right on top of this blue that would be clear annoying I think because I can imagine that they would slide a lot and having so many pieces were kind of removing that issue here altogether by having these glued up larger sections which I think is going to be I mean it seems like a really nice solution okay so since these panels are glued up they want to move individually but this product remains quite flexible as it dries in the store they showed us an example and it’s like almost like a rubbery a little bit as it dries so each individual panel may move slightly you know because there’s a tongue and groove in between them so that’s kind of nice that it remains flexible.

The Okay so have put a couple pieces together now and it’s working out pretty good.

I guess the main thing to think about but I guess I guess my mentality here is that if there are like little gaps here and there it’s not a big deal because this is a shop and I’m gonna feel anything in wood like sawdust and glue so I’m not too crazy if there’s a little bit of a gap here and there but all right I think it’s looking really great you know it’s like you cover a lot of flooring right away doing this doing it this technique which is pretty neat and it’s going down relatively quickly did 80 square feet in what two hours one hour yeah yeah yeah of course there’s a lot of flooring to go.

So first bucket is empty and this is about a hundred square feet.

So I’m gonna put this pedal down next like I know it’s not ideal creating these sections but listen look at the groove when it comes to putting these down I don’t feel like cleaning everything off right here.

Imagine doing this one by one this is the glue after a couple of hours okay so got this section completed and everything moved back on there in order to be able to continue doing this stuff it’s definitely a bit of a puzzle in a moving one thing to another in order to be able to put the flooring down so I’m gonna stop this video right here this was definitely an interesting experience the glue seems to have performed quite well so far I haven’t really had any issues it doesn’t go very far but I’ll have to go and get some more glue prepare more panels and start this process all over again to continue in this workshop I have a bunch of big tools coming in a big Reese jointer and a grizzly planer coming into the shop so I really would like to move on here and get more prepared before bringing those units into here so anyway hope you guys enjoy the video let me know if you have any questions in the comments below and I’ll see you guys soon bye.

When is the two-component adhesive used?

The benefits that you can enjoy from applying the adhesive with two-component of paste is that they are independent of the surrounding and does not rely on the condition of the environment to have polymerization. Also, the time for the setting of the adhesive is very less and allows you to do the mixing with the help of the cartridge nozzle. It is important to keep in mind that you are dosing the mixture properly if you are mixing it manually without any help from the machine. Also, keep a note of the emission of the poisonous gas during mixing, so it is better to do to it the ventilated area.

How to know if you want an adhesive of industrial-type or structural type?

The first thing that you need to check is that if your product is compatible with the material you are using on. Along with that, you need to keep track of the surroundings such as the suitable temperature, enough amount of moisture content, and also the exposure to UV rays, chemicals such as detergent, and also dust. The exposure of your product to dirt and dust effect on the quality of bonding. It is important to keep in mind that your product is compatible with the strength and can also face enough amount of resistance.


The concrete adhesive is simply a cement mixture that you can use to resolve the cracks the walls or corners of your building and it is optional to add stiffness. With the more high quality of concrete adhesive, the more realistic the surface in your building look. While applying it, you do not have to very rough on the surface and you can add it for the old cement to fill the cracking. We wish that this review might have helped you in getting the best concrete adhesive you were like looking for years and about the most important features.

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