ECMAS X FIBER 54 (EXF 54) is a synthetic structural fiber designed to improve the durability and mechanical properties of concrete. EXF 54 is a hybrid fiber, meaning it consists of a non-fibrillated monofilament containing a special mix of Polyolephinic polymers and a fibrillated Polypropylene fiber capable of reducing and in some cases totally eliminating plastic shrinkage. EXF 54 increases concrete’s flex fatigue, ductility, fatigue resistance and durability. Unlike metal fibers, EXF 54 is non-corrosive, non-magnetic, and 100% acid and alkali proof. Concrete made with EXF 54 offers much greater durability and mechanical performance than concrete made with an equal amount (by volume) of metal fibers, either smooth or hooked. EXF 54 may be used in place of electro-welded mesh in all flooring applications.