GREENTECH GYPFLOW SCREED GL-62 is a gypsum based self-levelling underlayment for thick layer application which complied with EN 13813 class CA-C25F5.   It is low shrinkage which can be built up to 60 mm in one layer without shrinkage crack.  The product is flowable which provides an ultra-smooth surface. As a gypsum-based product, GREENTECH GYPFLOW SCREED GL-62 is fast hardening which has low moisture content at early stage, which allow light traffic as well as to apply finishing layer in short time.  It is suitable for internal thick layer floor leveling.