How to Choose the Correct Resin and Calculate Aggregate for Your Driveway

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Planning a resin-bound driveway involves two key steps: selecting the best resin for your chosen aggregate and precisely calculating how much aggregate you’ll need. Getting these right will ensure a durable and attractive finish, as well as optimal drainage.

Choosing the Right Resin Binder

Your choice of resin depends on the type and colour of the aggregate. For white stones, it is advisable to use a non-yellowing polyurethane binder such as Polirock to prevent yellowing over time. For coloured aggregates, a low-yellowing epoxy binder is often suitable. These binders will maintain the look of your stones and provide weather resistance needed for outdoor surfaces. Always consider the traffic your driveway must support and opt for products rated for vehicle use if required.

Calculating Aggregate and Resin Quantities

To estimate the total quantity, first measure your driveway in metres (length × width), then decide on your desired thickness (typically 2–4 cm). The general recommendation is to use 6–8 kg of aggregate per 1 kg of resin binder. For example, a 10 m² area at 2 cm thickness would require around 140–160 kg of aggregate and 18–23 kg of resin. For a simple all-in-one solution, consider a complete kit like Flowstone, which provides pre-measured materials and clear instructions for different area sizes.

When This Matters Most

Correctly matching resin to your chosen aggregate and calculating precise quantities is essential when creating a permeable driveway that endures both the UK climate and daily vehicle use. These steps are particularly critical for ensuring smooth, puddle-free surfaces and maintaining your driveway’s appearance over time.

Related products

• "Flowstone" – Complete Permeable Floor Kit with Pebbles and Resin
• Washed Pebbles for Permeable Floors 25kg – Outdoor Resin-Bound Surfaces
• "Polirock" – Polyurethane Binder for White Stones, 2kg Two-Component Kit

Related guides

• How Much Aggregate Do I Need For A Driveway

By choosing the appropriate resin and calculating your aggregate needs carefully, you’ll lay a strong foundation for a durable, permeable driveway. For more details on planning your project, see our main guide on how much aggregate you need for a driveway.