The ElastoCrete base mix is a two component, inorganic polymer modified cement with many superior properties compared with traditional cements. When cured properly ElastoCrete will not shrink or crack. It can also be poured from a feathered edge to several inches think. It does not have a high PH and can accommodate most pigments. ElastoCrete is compatible with a variety of materials such as wood, glass, coal slag, and paper. It is also very flexible.