What Is Low-Yellowing Epoxy and Why Is It Important?

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When installing resin-bound or permeable flooring outdoors, choosing the right epoxy binder is essential for long-lasting good looks. Low-yellowing epoxy helps prevent unsightly colour changes in coloured aggregates caused by sunlight exposure.

What Does Low-Yellowing Epoxy Do?

Traditional epoxy resins can gradually develop a yellowish tint when exposed to direct sunlight, particularly outdoors. This yellowing is most apparent on decorative floors that use light or coloured stones. Low-yellowing epoxy contains additives that help resist this effect, maintaining the intended appearance and vibrancy of the flooring over time.

For floors that use white stones, a non-yellowing polyurethane binder is often recommended for the best results. However, for coloured aggregates, a low-yellowing epoxy provides reliable UV resistance and helps your driveway, patio, or path retain its original finish.

Choosing the Right Floor Kit

When working with coloured pebbles for a permeable floor, low-yellowing epoxy is preferred as the binder. It gives both a strong structural hold and protection from colour change. For example, the Flowstone Complete Permeable Floor Kit includes guidance on matching the right resin with your chosen stone to preserve its look and durability for years to come.

• Ideal for driveways, footpaths, and outdoor leisure spaces
• Easy application with clear instructions suitable for DIY and pro installers
• Protects light-to-medium coloured aggregates from yellowing

When Should You Use Low-Yellowing Epoxy?

Choosing low-yellowing epoxy is most important when your resin-bound flooring will be exposed to regular sunlight, and you want to preserve the natural colours of your aggregates. It’s a practical solution for outdoor projects that feature custom blends or decorative stones—ensuring your investment stays attractive and functional, even after years of UV exposure.

Related products

• "Flowstone" – Complete Permeable Floor Kit with Pebbles and Resin

Related guides

• Permeable Flooring Vs Concrete Which Is Best For Your Project

For any project comparing permeable resin-bound surfaces with standard concrete, using low-yellowing epoxy is a reliable way to keep outdoor floors vibrant and durable. Learn more about selecting the best materials for your needs on our main guide to permeable flooring versus concrete.