QUARTZ NANOGUARD™ Quartz Protector is your secret defender from life’s little mishaps. Whether it’s a brand-new countertop, or installed years ago, QUARTZ NANOGUARD™ Protector helps repel liquids and block stains without changing the look and feel of Quartz or Quartzite. This means you can wipe the surface clean before the mess sinks in for beautiful, long lasting, stain-free appearance for years to come.