American Coatings Show 2018

Sessions Speakers Exhibitors Products Press Releases Show Specials Floor Plan Buzz

10.1 Highly Resistant Polyurethane Dispersions for High-Performance Coatings (Room 240-242)

10 Apr 18
2:00 PM - 2:30 PM

Tracks: Session 10: Polyurethanes II, Session 10: Protective Coatings

Polyurethane resins are durable materials effective at protecting a wide variety of substrates in both interior and exterior environments. While solventborne types have dominated the market for many years, increasing environmental regulations and new developments have led to waterborne products with robust performance, including good chemical resistance and mechanical properties. Such performance attributes have enabled the use of these materials as graffiti resistant coatings. The anti-graffiti market continues to grow annually in response to increasing vandalism. Billions of dollars are spent each year as companies attempt to protect their property. Anti-graffiti coatings are divided into two classes: temporary and permanent. Polyurethane dispersions (PUDs) classify as permanent systems that produce a protective surface that provides a barrier to paint and other staining while also resisting cleaning chemicals. Anti-graffiti coatings are also required to have excellent exterior durability, good adhesion to masonry substrates and high moisture vapor permeability. Experimental polyurethane dispersions have recently been developed to achieve the highest chemical resistance in a one component system. These products have been tested according to the ASTM standard for Graffiti resistance and produced exceptional results without the use of surface energy modifiers or external crosslinkers. Performance has also been benchmarked against several commercial standards which includes different resin technologies. Highly resistant and durable coatings have been produced showing promise for easy to clean surfaces. Such highly resistant materials can be useful in other markets as well. Further work has explored the application of these products in market areas such as interior automotive.