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Low-yellowing epoxy is a type of resin binder specially designed to resist discolouration over time, making it an excellent choice for outdoor decorative paving projects. It helps maintain the appearance and colour of surfaces exposed to sunlight and weather.
What Does ‘Low-Yellowing’ Mean?
Conventional epoxy can become yellow over time, particularly when exposed to sunlight or UV rays. Low-yellowing epoxy includes additives or formulation tweaks to slow this process. While completely non-yellowing resins (such as some polyurethanes) are ideal for white or very light stones, low-yellowing epoxies are well suited to coloured aggregates where subtle colour change is less noticeable.
Choosing and Using Low-Yellowing Epoxy in Outdoor Projects
When installing permeable paving, selecting the right binder is key to achieving a long-lasting, attractive surface. For coloured pebbles or stones, low-yellowing epoxy offers good balance between durability, appearance, and cost. Follow all application guidance for even mixing and proper curing. Kits like the Flowstone Complete Permeable Floor Kit give you a simple way to get started with step-by-step instructions and resin advice for each colour.
When Is Low-Yellowing Epoxy Most Important?
If you’re using coloured stones in exposed areas that receive plenty of sunlight—such as driveways, patios, or garden paths—using a low-yellowing binder helps preserve the vividness of your chosen tones. For white or very pale aggregates, consider a non-yellowing polyurethane instead for best results.
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Low-yellowing epoxy is a practical option for surfaces where ongoing colour clarity matters, especially with decorative permeable paving. To further explore slip resistance and long-term surface quality, see our main guide on how slip resistant permeable paving is.