Can I Install Resin Bound on Existing Concrete?
The simple answer is yes, you can install a resin bound surface on existing concrete, but it’s important to understand the potential risks and the process required to ensure the best results. This method is often referred to as an “overlay,” and while it can be a viable option, there are certain limitations that need to be considered.
What is an Overlay?
An overlay involves applying a resin bound system directly over existing concrete. While this might seem like a convenient solution, it’s essential to remember that any contractor who offers an overlay without a full dig out should be cautious about providing a long-term guarantee. This is because the durability of the surface depends heavily on the quality of the existing concrete.
At BFG Contractors Ltd, we take a thorough approach before deciding to proceed with an overlay. We test the old concrete to assess its condition. If we find any cracks, we “chase” or cut into them to prevent further damage. To strengthen these weak points, we install resin mesh over the cracks, ensuring additional support. Finally, we apply a resin primer minutes before laying the resin bound surface to enhance adhesion and stability. This careful process is what we call an overlay.
Why is a Full Dig Out the Best Option?
While an overlay can be a suitable solution in some cases, a full dig out to a depth of at least 300mm is always the best option. By fully removing the old surface and installing a proper sub-base, you ensure the new resin bound system has a solid foundation. This significantly reduces the risk of future cracking or movement, especially in areas that experience heavy use.
At BFG Contractors Ltd, we recommend a full dig out for most projects, especially when long-term durability and reliability are key factors. A new, well-prepared sub-base will not only improve the overall lifespan of the surface but also allows us to provide a robust guarantee on the installation.
Conclusion
In short, while it is possible to install a resin bound surface on existing concrete through an overlay, it requires careful preparation and comes with certain risks. At BFG Contractors Ltd, we ensure every overlay is completed to the highest standards, addressing any existing weaknesses in the concrete before applying the resin bound surface. However, for the most durable and long-lasting results, we always recommend a full dig out.
If you’re considering a resin bound surface for your property, contact us at BFG Contractors Ltd. We’ll provide expert advice tailored to your specific needs, ensuring the best outcome for your project.