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Choosing the right resin binder is essential to keep your permeable pebble flooring looking great year after year. For outdoor areas using light or white aggregate, a non-yellowing polyurethane resin is highly recommended to prevent unwanted colour changes caused by exposure to sunlight and weather.
Why Non-Yellowing Polyurethane Matters
Polyurethane resins are known for their resistance to UV-induced yellowing. Standard binders can discolour, especially when used with white or light-coloured stones, creating a yellow tint that spoils the desired clean finish. Non-yellowing formulas are engineered to stay clearer for longer, making them ideal for maintaining a fresh, bright appearance in your permeable flooring.
Practical Application: Choosing the Right Binder
When selecting a resin for your project, always check compatibility with your chosen aggregate. For white or very light pebbles, non-yellowing polyurethane is the trusted choice. If you’re using warm or dark coloured stones, a UV-stable, low-yellowing epoxy such as the one included in the Flowstone kit may be more suitable. Make sure your working surface is clean and dry before application, as moisture can compromise performance and durability.
When is Non-Yellowing Polyurethane Essential?
- When using white or very light decorative aggregates in visible, sun-exposed locations
- For projects where colour retention over years of outdoor use is a priority
- In high-traffic areas, to prevent patchy discolouration over time
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Choosing a non-yellowing polyurethane binder is crucial for permeable flooring that looks sharp and clean, especially with light-coloured gravel. For more guidance on selecting decorative gravel and binder combinations, visit our main guide on which decorative gravel to use for permeable flooring.