
- Principal:Dow Coating Materials
- Chemical Family:Chemical Mixtures & Blends
- End Uses:Primer, Protective Coatings, Top Coat
- Compatible Substrates & Surfaces:Aluminum, Concrete, Galvanized Steel, Metal
- Features:Corrosion Resistance, Excellent Adhesion, Excellent Pigment Stability, Good Metal Adhesion, Multi-Substrate Adhesion
MAINCOTEâ„¢ PR-71 is used for all protective coating applications, the first need is for adhesion to and passivation of the substrate. In the past, difficult-to-adhere-to substrates were often treated with a vinyl wash primer to passivate the substrate and provide adhesion for subsequent coats. These vinyl wash primers are increasingly difficult to use as they are very low in solids, high in VOC, and contain toxic pigments. In contrast, MAINCOTEâ„¢ PR-71 Waterborne Acrylic Resin allows the coatings manufacturer to supply primers that not only adhere to difficult metallic substrates, but also give good corrosion resistance over carbon steel. This resin's ability to be topcoated by most solvent-based coating systems makes it a very versatile water-based primer.