Application Instructions & Binder Selection for Aggregate Colours

Choosing the Right Binder for Aggregate Colour

The colour of your stone aggregate will determine which type of resin binder produces the most attractive and resistant finish. For white or clear stones—such as white quartz or Carrara marble—a non-yellowing polyurethane binder is recommended to preserve brightness and clarity. For coloured aggregates (like natural river pebbles or dyed gravels), a low-yellowing epoxy binder will enhance the hue while maintaining durability. Avoid using epoxy with white aggregates, as even low-yellowing formulations may subtly alter whiteness over time.

Step-by-Step Application Instructions

• Surface Preparation: Ensure the sub-base is solid, clean and dry. Remove all dust and debris for maximum adhesion.
• Mixing: Accurately combine the binder components according to manufacturer instructions. Gradually add your chosen stones, ensuring an even coat over all granules.
• Laying: Pour the resin-aggregate mixture onto the prepared surface. Using a steel float, spread evenly to your desired thickness, compressing to close gaps. Work in small, manageable sections to maintain consistency.
• Curing: Allow the surface to cure, protected from rain or extreme temperatures, typically for 24 hours. Follow product-specific guidance for best results.

Full, step-by-step instructions are supplied with resin kits such as the Flowstone Complete Permeable Floor Kit.

When Careful Binder Selection Matters Most

Binder selection makes a crucial difference where aggregate colour is central to the visual appeal—such as entrance paths, patios, or public courtyards that showcase bright whites or bold colour mixes. Using the recommended binder prevents unwanted yellowing and preserves the designed effect under everyday foot or light vehicle traffic.