Resin-Bound vs Resin-Bonded: What’s the Difference?

January 17, 2024

As the construction industry shifts its focus towards sustainable development, permeable pavement materials have become a popular option. Permeable pavement can reduce the risk of surface water runoff and flooding while maintaining the aesthetic value and structural integrity of public surfaces. Resin-bound and resin-bonded are two similar terms used when discussing these options, and choosing between them is an important part of implementation. Here, we’ll discuss the differences between resin-bound and resin-bonded materials and how to pick one for your project.

What Is Resin-bound?

Resin-bound is the process of mixing a two-part resin with a natural aggregate to bind the solids. It’s a permeable system that leaves several channels in the surface, allowing water to drain through and into the ground. This permeable pavement has a smooth finish and is suitable for pedestrian areas and commercial areas that must be practical and aesthetically pleasing.

What Is Resin-bonded?

Resin-bonded is a non-permeable system that involves applying a resin binder to a pre-existing surface, such as tarmac or concrete, followed by scattering the aggregate on top. This process creates a textured surface and a non-permeable layer which water cannot penetrate. Resin-bonded materials are ideal for areas that require slip resistance, like ramps.

Differences Between Resin-Bound and Resin-Bonded

While both types of materials have the word “resin” in their names, it’s clear that they are fundamentally different. Resin-bound creates a permeable surface for flood reduction, while resin-bonded is closer in performance to traditional materials. Here are some additional discrepancies:

Surface finish: Resin-bound provides a smooth surface finish, whereas resin-bonded has texture.
Water permeability: Resin-bound allows water to drain through it while resin-bonded does not.
Slip resistance: Resin-bonded provides better slip resistance than resin-bound.
Durability: Resin-bound and resin-bonded materials are highly durable because they both include natural stone or aggregate in their makeup.
Maintenance: Resin-bound requires less maintenance than resin-bonded because it’s sealed in place, while the surface on resin-bonded may flake off over time.

Which One To Choose?

Now that you know the core differences between resin-bound and resin-bonded surfaces, it’s time to decide which one you need. This decision depends on the type of project, location, and use of the pavement you have in mind. The best option is resin-bound because of its permeability if the area experiences heavy rainfall. Resin-bonded is the best choice if slip resistance is the main priority. The location and type of project are also important considerations. Resin-bound is ideal for commercial applications because it provides a smooth surface finish. Resin-bound and resin-bonded are both suitable for residential driveways, but resin-bound is likely to be more durable.

Permeable pavement materials provide a sustainable and environmentally friendly option for the construction industry, and knowing what to look for is key. At Rockpave, it’s important to us that you have all the resources and knowledge you need to make the most of your permeable pavement installation. We carry durable permeable resin-bound surfacing that’s available in a series of colors to suit your aesthetic needs. Reach out to us today to learn more.

< Older Post

Newer Post >

Resin Bound Tree Pit Surrounds

By Jim Robinson • September 9, 2025

Resin Bound Tree Pits: The Smarter Way to Protect and Showcase Urban Trees In towns and cities everywhere, urban planners face the same challenge: how to protect tree roots while keeping public spaces clean, attractive, and safe. Traditional solutions—like loose gravel, soil, or metal grilles—often fall short. That’s where resin bound tree pits come in. What is a Resin Bound Tree Pit? A resin bound tree pit is a surfacing system that uses a blend of natural stone aggregates bound together with a clear, UV tolerant resin. Installed around the base of a tree, it creates a strong, permeable, and decorative surface that allows rainwater to drain through while protecting the soil and roots below. Think of it as a breathable shield for urban trees: tough enough to withstand foot traffic, but porous enough to support healthy root growth. Why Choose Resin Bound for Tree Pits? Permeability for Healthy Trees The resin bound surface is fully porous, meaning water and air can still reach the roots. This promotes long-term tree health and reduces the risk of waterlogging. Cleaner, Safer Surfaces Unlike loose gravel, resin bound surfaces don’t scatter, sink, or create trip hazards. In fact they help to eliminate trip hazards! They provide a smooth, stable finish—ideal for high-footfall areas. Aesthetic Appeal With a wide choice of natural stone colors, resin bound tree pits can complement surrounding paving, creating a polished, modern look in public spaces. Durability & Low Maintenance Resin bound surfacing is resistant to weeds, litter build-up, and erosion. It keeps the area around tree bases tidy without constant upkeep. Accessibility Friendly A smooth surface around tree pits is easier to navigate for strollers, wheelchairs, and pedestrians—making public spaces more inclusive. Where Are Resin Bound Tree Pits Used? City sidewalks to reduce tripping hazards and improve walkability Parks and plazas for cleaner, more attractive landscapes Shopping districts where appearance and safety matter Corporate campuses or schools to combine functionality with visual appeal A Sustainable Choice for Urban Environments! Resin bound systems align with modern sustainability goals. By ensuring stormwater naturally drains into the ground, they help prevent flooding and reduce strain on drainage systems. Combined with their long service life, a very competitive price point, they’re a future-proof investment for greener, smarter cities. Final Thoughts If you are considering the use of resin bound for your tree pits, don't just choose any resin bound product, choose one that is time tested, data driven and will sustain the demands of a harsh city environment. A good resin bound product will have similar strengths to concrete yet it will be completely pervious. Resin bound tree pits are more than just a neat landscaping detail—they’re a practical solution that supports tree health, improves safety, and enhances the look of urban spaces. If you’re planning a streetscape project, commercial landscape, or public park, resin bound surfacing could be the perfect choice for both form and function.