UltraTile ProFlex S2 is a single-part, flexible, fiber-reinforced adhesive suitable for both wall and floor tiles. Specifically formulated for enhanced adhesion and flexibility, it's designed for areas where slight movement or vibration may occur. Classified as C2 F S2, it offers ultimate flexibility, rapid setting, and frost resistance. It's suitable for various applications including porcelain and natural stone tiles, timber floors, floors and walls, underfloor heating, and both internal and external use. Specifications: Packaging: 20kg bags Standard Conformity: EN 12004 Class C2 F S2 Bed Thickness: 3mm-20mm Coverage: For a 3mm bed thickness, you will require 4.5kg of material per m2 Pot Life: 40 minutes depending upon temperature and substrate Set Time: 3.5 hours dependent upon temperature and substrate Storage: This product must be stored in unopened bags, clear of the ground in cool dry conditions and protected from excessive drafts. Shelf Life: 12 months in the above conditions