What is Silestone N-Boost? (A Simple Explanation)

By Tudor Granite, Worktop Specialist | Updated: October 2025 | Reading time: 3 minutes

You'll see "N-Boost" mentioned on Silestone's website, but what does it actually mean for you as a homeowner? As a key feature highlighted in our main Silestone review, N-Boost is more than just marketing jargon. It’s a genuine technological advantage.

In simple terms, N-Boost is a special surface treatment that makes Silestone quartz intensely water-repellent, easier to clean, and more vibrant in colour.

How Does N-Boost Work?

It’s not a coating or a sealant that can wear off. N-Boost is a treatment that is integrated into the material during the manufacturing process. It modifies the surface of the quartz at a molecular level, filling in any potential microscopic irregularities to create an extraordinarily smooth and non-porous surface.

The 3 Key Benefits for You

1. Easier Cleaning and Enhanced Stain Resistance

   Because the surface is so perfectly uniform and liquid-repellent, spills like wine, coffee, or oil bead up on the surface rather than spreading out. This makes them incredibly easy to wipe away without leaving a residue. It’s a noticeable improvement on an already low-maintenance product.

2. Greater Colour Intensity

   The N-Boost treatment deepens and enriches the colour of the quartz. Blacks appear blacker, whites look brighter, and veining becomes more distinct. It enhances the visual depth of the slab.

3. Improved Shine

   The perfectly smooth surface reflects light more uniformly, resulting in a more brilliant and noticeable lustre. The worktop simply looks shinier and more luxurious.

Is it a Gimmick? A Fitter's Perspective

Absolutely not. As professional fitters, we handle these slabs every day, and we can physically feel the difference. A Silestone worktop with N-Boost feels slicker and smoother to the touch than quartz without it. For homeowners, it provides an extra layer of confidence that their investment is protected against even the toughest stains.