Even though mortar is a traditional material, it would be wrong not to see it in a "high tech" light. Especially dry-mix mortar, modified with high-quality polymer binders, opens up broad innovative potential and a great many novel functions.
In former times, mortar was still prepared on site from the individual raw materials. Germany's first post-war construction boom, however, soon required enhanced mixtures. Because "traditional" mortar comprising cement, sand and water adheres by way of mechanically interlocking with the substrate, it can only be used with porous substrates. Therefore, liquid polymer binders were added to mortar to enable better adhesion to a wide range of substrates. The drawback to this system, however, was that exactly the right amount of polymer binder had to be added to the mortar - at the construction site which meant that metering errors were common.