How to adhere concrete to concrete

QUIKRETE ® Concrete Bonding Adhesive (No. 9902) completely bonds brand-new concrete, plaster, as well as stucco to existing concrete, plaster, as well as stucco. Removes the requirement for roughing the surface area prior to the application. Surpasses the efficiency demands of ASTM C 1059 Kind I as well as II.

Offered in:
1 qt. container
1 gallon container

Usage For:

  • Bonding New Concrete to Old Concrete
  • Bonding applications on concrete overlays 1″ “or thicker
  • Indoor or external applications

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How to adhere concrete to concrete



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When a concrete flooring surface area ends up being harmed there is normally the option of either knocking down the flooring as well as beginning once more, or resurfacing the existing concrete. Getting rid of the whole flooring as well as re-pouring is expensive, both monetarily as well as in regards to time. It’s additionally inefficient if the flooring is still structurally appear. One option is to include fresh concrete in addition to the old surface area.

Why you require to utilize a concrete bonding representative

The concrete within a concrete mix does not consist of any kind of all-natural bonding representatives – so when fresh concrete is added top of an existing layer of concrete, both will not collaborate. When healed, the brand-new concrete will merely remain on leading as a different layer. This will certainly not create a solid, functional flooring.

A bonding representative (bonding adhesive) requires to be repainted onto the existing concrete initially to make sure that the fresh concrete will efficiently stick.

This is additionally real of flooring repair work, if concrete is made use of to fill up spaces triggered by damages. The brand-new will not stick to the old without the aid of a bonding adhesive.

Surface area prep work for a bonding representative

If an existing concrete surface area has laitance (a dirty layer of concrete as well as great accumulations), or has actually been polluted with splillings such as oil or oil, after that the bonding representative will not function well. Surface area prep work is definitely essential to make sure that the bonding representative is put on an audio concrete surface area. This includes extensive cleansing, normally by stress cleaning (you might additionally wish to consider our Decap Roc flooring cleansing solvent), or vacuum cleaner shot blowing up.

If there are splillings which have actually permeated right into the flooring’s surface area, grinding or crushing might be required to eliminate the leading couple of millimetres of the existing flooring’s surface area to come down to tidy concrete.

Which bonding representative to pick?

Rocland supplies 3 various bonding representatives. The option depends upon where the bonding representative will certainly be made use of, as well as the most likely use the last flooring surface area.

    is provided is an artificial material fluid which requires to be blended with water, sand as well as concrete to make a slurry. This can be put on an existing concrete surface area prior to including a screed, mortar on concrete on the top while it is still sticky. It can additionally be made use of prior to including a material surface area, as well as for mortar as well as stonework joint repair work. is a two-part epoxy material concrete adhesive, which is blended with each other on website. It is made use of to bond 2 layers of concrete with each other, as well as additionally functions as a wetness vapour obstacle in between both layers. is a super-strong concrete bonding adhesive, as well as the most effective option for examples where the leading surface area will certainly consist of difficult accumulations, or undergo rush hour. It is provided as a powder, which requires to be blended with water on website as well as put on a piece which has actually been saturated with water the day previously.

The bonding representatives must be very carefully as well as extensively used, either with a brush, a mop or a roller – or for bigger locations they can be splashed on.

For details assistance on selecting one of the most proper bonding representative for your task, please contact us as well as we will certainly pleased to assist.

How to adhere concrete to concrete

Concrete is recognized for its stamina, yet not bonding. Recognizing what concrete will certainly adhere to– as well as what it won ’ t– is crucial when you ’ re fixing old or putting brand-new concrete. It will certainly assist your concrete application go right the very first time without creating issues later.

In this overview, we will certainly discuss the scientific research behind concrete attachment as well as the numerous products it will certainly as well as will certainly not deal with.

Just How Concrete Bond Functions

Concrete, which becomes part of the concrete mix, does not have any kind of all-natural bonding representatives. In a lot of cases, fresh put concrete will certainly not bind to the various other product yet be different. For surface areas that are weight-bearing, such as floorings as well as structures, this concern suggests absence of an audio framework.

To urge attachment in between the concrete as well as the various other material, you ’ ll requirement to utilize a bonding adhesive. After prepping the surface area, utilize a brush, mop, roller or sprayer to use the bonding representative. Depending upon what kind you obtain, it will certainly maintain wetness out as well as stand up to deterioration from web traffic.

In some circumstances, concrete will normally bond to various other products. To avoid concrete from adhering to these products, you require to treat them with a launch representative to maintain the concrete from sticking by creating a slim lubricating substance movie over the product. When the concrete is completely dry, it ’ s very easy to divide.

A couple of various type of launch representative exist, consisting of:

  • Oil-based: Chemical blends, like linseed oil, mineral oil as well as paraffin, make the surface area stick-resistant.
  • Water-based: This range is made from plant-based products, like veggie oils, as well as won ’ t stain the concrete surface area.
  • Responsive: The fats in this material have a chain reaction with the alkalinity in the concrete to stop sticking as well as maintain the concrete unblemished.

What Will Concrete Adhere To?

Concrete does stick to timber, though the link is commonly not excellent. Lots of building contractors utilize timber panels as types that concrete is put right into to produce a structure or flooring. After the concrete is healed as well as completely dry, the timber is gotten rid of.

If you put on ’ t desire concrete to adhere to timber, you would certainly require to utilize a launch representative to make elimination much easier. Lumber mills commonly pretreat their timber with oil-based blends to make it stick-resistant. If your timber has actually not currently been dealt with, you might need to buy a business representative as well as use it on your own.

Concrete additionally sticks extremely well to plastic. Dealing with plastic with a launch representative before can be found in call with concrete is the most effective method to guarantee your plastic pails as well as devices continue to be without completely dry concrete.

What Will Concrete Not Adhere To?

Concrete does not stick to:

  • Concrete – Dried out concrete doesn ’ t have any kind of all-natural bonding representatives, so so as to get damp concrete to bond to existing concrete, a bonding representative will certainly require to be made use of.
  • Molds – The majority of concrete mold and mildews are made from urethane rubbers, which are made to be immune to concrete bonding.
  • Paint – Paint is one more product that has no all-natural bonding representatives, so concrete typically won ’ t adhere to it extremely well.
  • Oil – Oil or oiled surface areas are commonly made use of to make the surface area immune to concrete bonding.
  • Glue
  • Mortar

To advertise attachment, you ’ ll need to include the bonding representative on your own to obtain the concrete to function correctly. If you ’ re fixing existing concrete, you ’ ll requirement to obtain the concrete to bind to these products to ensure that the repair work lasts as lengthy as feasible.

Obtain an Examination With Dynamic Concrete Pumping

Do you have a concrete task in Alberta that you require to solve? At Dynamic Concrete Pumping, we have greater than 40 years of experience collaborating with concrete, as well as we ’ ll enjoy to seek advice from you concerning your task specifications. Fill in our get in touch with kind today.

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Dealing with concrete adhesive is straightforward when you have the required understanding. Our overview presents you to the various usages for concrete adhesives as well as informs you which adhesives are best for the work available.

What is concrete adhesive?

Concrete is a product made up of concrete, accumulation, as well as water. A number of sorts of adhesive can be utilized to fix concrete.

Concrete adhesives can be found in various solutions customized to the kind of product you’re bonding. Choices are readily available for both little house repairs as well as bigger, advanced work. Whether it’s rug suitable, gluing steel to concrete, or fixing roadways, Loctite has the best concrete adhesive for the work.

Intend to begin?

Have a look at our building adhesive for concrete.

Concrete glue distribution systems

The application method for concrete glue depends upon the kind of adhesive you’re making use of as well as the dimension of the work.

For a ridgid challenging bond, search for Loctite Epoxy Metal/Concrete. Application is straightforward by means of prefilled syringes. Just,

  1. open televisions
  2. mix according to bundle
  3. use to both surface areas you’re binding.

This adhesive is excellent for gluing concrete to steel, glass, or timber.

The majority of various other concrete adhesives can be found in cartridges. For this kind of application

  1. tons the caulking weapon
  2. cut television to the wanted density
  3. use the glue around the boundary of the product, about 2 inches from the side.
  4. press as well as enable remedy time.

Constantly checked out the supplier’s in-depth directions prior to continuing.

The Glue Individual shows just how to use wall surface rocks to an outside wall surface.

Which concrete adhesive is best for your task?

Your option of concrete adhesive additionally depends upon the dimension of the work. Right here’s a malfunction of concrete adhesives for little, tool, as well as huge work.

Little Jobs

For smaller sized concrete gluing tasks around your home, Loctite Extreme Glue Gel is the leading option. Its extremely flexible formula consists of Flextec innovation which bonds promptly as well as enables versatility. It appropriates for interior as well as exterior usage, yet realize that long-term direct exposure to water can reduce the attachment.

Tool Jobs

For tool dimension work, Loctite Power Grab Express Sturdy is the method to go. The “Greenguard” accreditation makes it ideal for youngsters as well as colleges. It is void dental filling as well as can be made use of to bind concrete with timber, drywall, plaster, block, foamboard, cork, as well as various other products.

Huge Jobs

For huge work, pick Loctite PL Costs Max for attachment that’s constructed to last. This building quality adhesive for concrete is excellent for exterior use. It can stand up to rough weather, together with foot web traffic. Similar To Loctite Go2 Gel, please note that long lasting call with water (i. e. submersion) can compromise the attachment. Costs Max bonds to most typical structure products such as concrete, rock, marble, timber, plywood, steel, as well as lots of others as well as is fantastic for mounting, floor covering, as well as landscape design. It’s a chip off the old block!