Polymer cement mortar is a mixture of cement, aggregate and organic polymer that can be dispersed in water. The polymer may be a homopolymer in which one monomer is polymerized, or a copolymer in which two or more monomeres are polymerized. The polymer must be film-coated under the environmental conditions to cover the cement particles and form a strong bond between the cement body and the aggregate. The polymer network must have the ability to prevent the occurrence of microcracks and prevent crack propagation. Self Adhesive Waterproofing Membrane Self Adhesive Composite Membrane,Self Adhesive Bitumen Membrane,Self Adhesive Waterproofing Membrane Choice-Link Trading Co., Ltd. , http://www.wfwaterproof.com