Profile: Polyurethane Progress Ltd. specializes in offering doci seals and molded products. Our products include U seals, cups, stepped wipers, energized seals, U seals with a/e rings, secondary lip, solid fluid seals, internal U seals, hat wipers, C rings, U wipers, external U seals, standard wipers, vee sets, twin sets, pneumatic seals, high pressure seals, rotary seals, and packing seals.