To meet today’s technical requirements; almost all dry mix mortars
require polymer modification. Many cementitious mortars contain cellulose ethers
as an additive to improve water retention and workability. However after setting and drying they will adhere poorly. In addition cementitious mortars are very hard, brittle and inflexible materials, whereas for many applications flexible and deformable cementitious materials are essential. As a consequence for almost all applications in modern construction, the modification of cementitious mortars with polymers is a must.