Should I use epoxy or polyurethane for white stones?

Why Polyurethane is Best for White Stones

Polyurethane binders such as Polirock are well suited to white stones. They resist yellowing, preserving the clean, bright look of white aggregates outdoors. Unlike many resins, polyurethane remains clear when exposed to sunlight and weather, ensuring your surface doesn’t develop an unwanted yellow tint over time.

Practical Application and Guidance

For best results, thoroughly mix the polyurethane binder with the white stones before laying the mixture. This method ensures even coverage and encapsulation, leading to a more stable and uniform finish. The typical ratio is approximately 3% binder by weight of stone, but always follow specific product recommendations for your chosen binder and aggregate size.

• Work in manageable batches to avoid premature curing.
• Apply on a dry day and at suitable temperatures, ideally between 10°C and 40°C.
• Level and compact the surface for a professional result.

When This Matters Most

This choice is particularly important for driveways, footpaths, and patios where pristine appearance is valued. White stones bound with clear polyurethane deliver aesthetic appeal and are ideal when UV exposure is expected.