NX Standard Set Flexible S1 W&F Tile Adhesive is a cement-based standard setting tile adhesive with high flexural and bond strength, suitable for fixing porcelain, ceramic, dark natural stone tiles*, mosaics and large format tiles to walls & floors in interior and exterior areas. It has low shrinkage and is suitable for a thickness of up to 10mm. Conforms to classification BS EN 12004 C2TE-S1.