PERSTORP: Boltorn™ P501 is developed for UV-curable hardcoat applications where high quality and durability are important. It is a dendritic polyol, which when acrylated shows excellent balance of properties with regard to viscosity, reactivity, hardness vs. flexibility, and adhesion onto flexible substrates. It has been custom designed to boost scratch resistance and hardness of UV-cured coatings while maintaining all the other excellent properties of Boltorn™ P500.