wipe with alcohol on a rag, before alcohol dries, surface should be clear looking until alcohol dries then haze will come back.if so polishing is all that is neccessary.no sanding.if surface is rough to the touch and snags the rag when wiping, you need to reclear the surface.i do paint repair on cars and boats, automotive clears do great on boats.- service one paint repair- jm35475@bellsouth.net-2053307836