Bond It 1L 5L Tile Primer Flexible Admixture Tiling Wall Floor Prime Preparation UK Description: A specially formulated acrylic dispersion for use as a primer prior to tiling or as an additive to cement based tiling products to improve adhesion and flexibility. Uses As a primer: to prepare and stabilise porous and dusting surfaces prior to tiling and to improve adhesion on difficult substrates, such as vinyl tiles, timber, asphalt and terrazzo, etc. Also prevents swelling of timber. As an admixture: to improve the flexibility and adhesion of cement based adhesives and grouts in situations subject to slight movement or vibration. To increase the performance of Bond It RAPID-SET (C1F) and make it suitable for use with Porcelain tiles add 2.5 Litres of PRIMER AND .