RDP in Dry Powder Materials

The Role of Redispersible Polymer Powders in Cement-Based and Gypsum-Based Dry Powder Materials

Whether you’re a contractor, engineer, or a DIY enthusiast, you need to know about Redispersible Polymer Powder (or RDP/RPP), which is one of the most important binders used in cement-based and gypsum-based dry powder materials. This type of powder is created by spray-drying polymer emulsions and has the same properties as the original emulsion—namely; it forms a film after water evaporation that is known for its toughness, weather resistance, and adhesion to a substrate. Let’s take a closer look at how this key ingredient helps make mortar waterproof.