Available from Aqua Coat, Aqua Thane NMP-free topcoat is an acrylic urethane blend to get better mar resistance and moisture protection of the richest looking wood. The NMP-free formula is intended for clear or lightly pigmented coatings where flexibility and a high degree of hardness are required. It offers excellent adhesion to wood and a variety of plastics, the company says, as well as exceptional mechanical stability and wetting properties. It can be brushed or sprayed. To further upgrade properties, the coating can be cross linked, Aqua Coat adds.