COFLEX CTL - Expansion joint with a metal structure and an infill suitable for sanding and grinding. Good tolerance to chemicals and heavier transit, therefore ideal for porcelain stoneware tile in industrial and commercial areas and for large surfaces in general. Good resistance to diluted acids. The product compensates the floors movements and grants a certain protection to the tile edges, which are constantly solicited by the various types of transit such as trolleys, carriages and so forth. The metallic side flanges of the joint profile have a good hold under the tile and will follow its movements in compression and expansion. The infill hardness is an excellent compromise between the required standards for flexibility and durability. Ideal with marble as it is suitable for grinding and polishing. Suggested flooring bays 16 sqm.