Rubberbond S1 is non-slump, rubber modified, off white cement-based tile adhesive with specially formulated PFR technology designed to give superior shear strength. It is specially designed for large format tiles and is Ideal for bonding a large range of wall & floor tiles including ceramic, fully vitrified, porcelain, natural stone. What makes Rubberbond S1 so unique is that it will accommodate shrinkage movement associated with early age concrete and screeds. It can be used over concrete that is at least 7 days old and screeds and renders after 16 hours. It is flexible enough to withstand crack openings of up to 0.9mm.