How to Mix Aggregate and Binder for Permeable Pool Surrounds

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Mixing Aggregate and Binder for a Permeable Pool Surround

When building a permeable pool surround, correctly mixing aggregate and binder is essential to achieve a surface that drains efficiently and stands the test of time. Here is a practical guide for the mixing process, ensuring your new area stays attractive and functional.

Selecting the Right Aggregate and Binder

The success of a permeable pool surround starts with careful selection. Choose clean, washed pebbles or aggregates designed specifically for resin-bound surfaces, such as Washed Pebbles for Permeable Floors. Your binder choice depends on the colour and type of aggregate: opt for polyurethane binders (like Polirock) for light or white stones, and durable, UV-resistant epoxy for coloured or darker pebbles. Using a complete kit, such as the Flowstone permeable floor kit, simplifies the process by providing matched materials and step-by-step instructions.

Mixing Process: Ratios and Technique

For a strong bond and even finish, always pre-mix your aggregate and binder before laying the mixture. Use a suitable container or a cement mixer for larger areas. Typically, the resin-to-stone ratio is about 3% by weight—always follow the product guidelines for precise measurements. Gradually add the resin to the pebbles, mixing thoroughly to ensure every stone is coated with binder. Lay the mixture promptly to prevent premature curing and spread evenly to your required thickness (usually around 2 cm for foot traffic areas).

When This Matters: Benefits of Proper Mixing

Mixing aggregate and binder thoroughly is crucial for more than just aesthetics. Proper mixing ensures a continuous, permeable surface that lets rainwater drain efficiently—reducing puddles and helping maintain a safe, slip-resistant poolside. Skipping or rushing this step can lead to poor structural integrity and reduced drainage performance over time.

Related guides

How Do You Build A Permeable Pool Surround

By following these mixing steps, you’ll create a resilient, attractive, and water-draining pool surround. For more on installing full permeable pool areas, explore our main guide on how to build a permeable pool surround.