WATER REPELLENT – STAIN RESISTANT AGENT with ENHANCING effect for stones and cotto. AGUAREX R is a Silitex product, a synergy of emulsified active principles in a water based solvent-free system. It can be applied on any stone (cotto, slate, travertine, bricks) and gives the stones a WET look and a complete water repellent and stain resistant protection that lasts many years. Suitable for horizontal and vertical treatments.