Steel Cementitious Panel : Steel panel is composed by steel sheets on top and bottom, infilled with cement in the middle. Whether cement is filled evenly in the middle is the foundation of deformation of floor in the future. Some manufacturers have no effective control measures as for cement filling measurement etc. Moreover, the proportioning of filler should be strictly controlled with different climate in different seasons of a year. 

Thus, deformation of Steel panel becomes a fact.  

Calcium Sulphate Panel :  The core panel of calcium sulfate panel  is mainly high strength αhemihydrate gypsum and mineral adhesive, primary and secondary cellulose as reinforcement material. The mould pressed panel can reach the rupture strength of 12-15Mp which ensure the superior quality of product. There is few deformation during use and with walking comfort.