General Polymers FasTop M urethane mortar system is a low odor, troweled applied mortar installed at 1/4” – 3/8” thickness. Under normal conditions, FasTop M is hand troweled onto the substrate without the use of a primer or topcoat. FasTop M is designed for conditions requiring rapid installation and protection of the concrete, wood or steel substrate from thermal shock, impact, corrosion, mild chemical attack and abrasion. FasTop M is textured and provides some skid inhibitance under most wet process conditions, and will remain so throughout the life of the floor. FasTop M can be used on new concrete, or to restore rough or badly damaged floor surfaces that have been exposed to years of contamination. FasTop M is extremely durable, and in most cases, has physical characteristics which are approximately double that of concrete.