| abstract |
Weather resistant composite articles which have a smooth, bubble-free surface and are sufficiently puncture resistant to pass the DynaTup Instrument Impact Test and have sufficient structural integrity and strength characteristics are produced by an open pour process. These composites include a polyurethane, unreinforced barrier coat and a fiber-reinforced polyurethane layer. These composite articles are particularly useful for the production of doors and panels and as structural components for spas, hot tubs, above ground pools and the like. |