Select Patterns from Koroseal available at our Los Angeles Showroom. Purchasing Agency for Interior Designers, Architects, and Hotels. Koroseal Interior Products is a market-leading specialty commercial interior products platform with highly recognized brands and unparalleled distribution capabilities. Koroseal is a leading designer, distributor and producer of wallcoverings, presentation surfaces, wall protection systems, digital printing and other complementary specialty interior products. This comprehensive product offering includes category-defining brands with differentiated features, premium quality and best-in-class service, giving design professionals the assurance that Koroseal products will not only look beautiful but also perform to the highest standards.