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When investing in an outdoor resin floor, one common concern is whether it will discolour or turn yellow over time. Proper material selection can make a significant difference to the long-term appearance of your resin surface.
Why Do Some Resin Floors Yellow?
Exposure to sunlight, particularly ultraviolet (UV) rays, can cause certain resins to become yellow or faded. Cheaper epoxy systems are especially prone to colour changes, especially under direct sunlight and harsh weather conditions. This discolouration not only diminishes visual appeal but can also signal surface ageing or damaging environmental effects.
Choosing the Right Binder for Colour Longevity
The key to a vibrant, long-lasting floor lies in choosing a binder designed to resist yellowing. For white or light-coloured aggregates, using a high-quality polyurethane binder—such as Polirock—offers excellent clarity and durability in outdoor settings. For coloured or darker stones, opt for a specialist low-yellowing epoxy like the Trasparente binder, which helps maintain the original hues of the aggregate. Always select a product clearly intended for outdoor use and UV stability.
Practical Tips for Preventing Yellowing
- Follow manufacturer guidance: Always check which resin or kit is suited to your stone type and install according to instructions.
- Consider location: Shaded or partially covered areas tend to resist sun-induced colour changes for longer than exposed locations.
- Ongoing care: While high-quality binders offer protection, regular cleaning and prompt removal of debris will help keep your resin floor looking fresh.
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Understanding the causes of yellowing and using the correct, UV-resistant binders keeps your resin floor attractive for years. For more advice on installation steps and product choices, see our main guide on how to make a resin floor.