Crack Mapping By Direct Inject


Structural Cracks Repaired using Top-Notch Concrete Crack Sealants in Sydney

Direct Inject has a team of highly skilled tradesmen who can determine the cracks’ size in your concrete structure/shotcrete application. From this, we can then communicate with the site engineer regarding the best methodology and carry out the work safely and successfully. We have completed multiple projects across Sydney and delivered satisfaction consistently to our clients with the outcome. Our company and experts have very high standards to get cracks repaired and sealed to ensure no damage to your buildings. Our solutions are available for domestic, commercial as well as industrial spaces.

Types of concrete crack sealant repairs-

  1. Control joint sealant:

It helps control where cracks show up in concrete placed horizontally or vertically. They are sealed against water, frost, debris and deal with recurring movement utilising an adaptive sealant.

  1. Recurrent movement:

Sealing and repairing cracks in concrete using injection can be done using an epoxy resin or polyurethane where repetitive movement is expected. When the movement is considered normal, which may be caused by traffic vibration or temperature changes, and where the movement is not causing an alarming threat to the structure.

  1. Stop a water leak:

Sealing and repairing cracks in concrete is imperative to stop water leakage through the crack and damage walls immediately. Injecting either epoxy resin or polyurethane sealant seals these cracks in concrete.

  1. Structural repair:

Sealing and repairing of the structural cracks: For certain situations, generally, a structural designer or an expert masonry will provide suggestions and start with structural repairs utilising injectable epoxy sealant or, in some cases, by using injectable polyurethane sealant.
The use of injected epoxy sealant is likely most suitable when cracks have shown up because of non-recurring stresses. By adding epoxy sealants to cracks on concrete slabs that were formed due to construction blunders, the repaired area would be as strong as before when no cracks were present.

  1. Structural reinforcement:

Utilising a seal or wrap-and-seal frameworks that give extra solidarity to existing concrete structures like pillars and columns.
They may incorporate the utilisation of synthetic fibres, carbon fibre, and different wraps. Likewise, these items may be utilised on steel or concrete surfaces that climate change and corrosion have harmed.

  1. Surface repair:

For surfaces that are constantly being used, for example, industrial floors or parking decks that have developed smaller cracks, using a “healer-sealer” break sealants can get the job done.

Reasons to utilise an epoxy-based crack repair or sealant technique-

  • When Structural Repairs are required-
    Epoxy, when appropriately blended and injected, is more challenging than the concrete to which it is bonded to. Before using an epoxy sealant, see to it that the cause of the problem is rectified. Otherwise, the cracks can reappear on the structure.
  • To Seal Extremely fine cracks –
    When the cracks are so fine that it becomes difficult to inject a polyurethane foam, the job can be completed using a low-viscosity epoxy sealant. Similarly, larger cracks utilise a higher viscosity epoxy arrangement or choose a polyurethane injection method.
  • May give a smoother surface to the surfaces.

Reasons to utilise a polyurethane foam injection crack sealant-

  • When you have to seal a crack against air or water leaks, this technique is the go-to option.
  • Using a flexible polyurethane sealant will provide better durability when you expect cracks to be filled that might have a recurring pattern or constant traffic to prevent cracks and leakages from reappearing.
  • When the crack is huge, utilising an expanding polyurethane foam sealant might be simpler to introduce and is additionally prone to be a more affordable solution.
  • Suppose the cracks that have developed stretches out through the foundation wall and are huge. In that case, an epoxy sealant may spill out of the opposite side of the wall or floor section – Using the foam injection method may cause the foam to expel through the construction however is bound to be more efficient to fill the crack. 
  • If the crack is continuously leaking, utilising an epoxy infusion sealant is bound to fail as they cannot properly seal the masonry surfaces. Whereas a polyurethane sealant will perform all the more reliably as they are sealants that are moisture activated.
  • If you wanted to get a DIY repair, this method is much easier than using the epoxy method.

No job is too big or small for our experts. We will ensure that your needs are met and provide you with maximum satisfaction on the job completion using high-quality materials and tools to get your project done within schedule and budget.
Do you want to get your structural cracks repaired using top-notch concrete crack sealants in Sydney? Then why wait? Get in touch with our professional sales team on 0296222336 or email us your queries at to get them all resolved at the fastest possible time. And get free quotes for the type of service that would be required.



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