NEOPRIME PUD is a fast drying single pack primer based on polyurethane dispersion resins. For internal and external use, NEOPRIME PUD is re-coatable with most water and solvent borne decorative paints. Good adhesion to most metal (steel, zinc, aluminum and galvanized steel) and on smooth hard surfaces such as UPVC, GRP, Polyester and Formica. NEOPRIME PUD closes porous substrates such as masonry and plaster rendering, concrete, wood and fiberboard.