Glass run channels and waist belts are sealing profile products visible on the exterior of vehicles. These profiles are black in color, which contrast with reflective body parts (chrome plating, glass, hoods, etc.) unique to each automotive brand. R&D laboratories utilize climatic solar simulation equipment to help optimize the effects of polymer behavior on the visual area of the vehicle. These devices test sun effects in humid, cold and hot environments in cycles determined in collaboration with our customers to verify the reliability of the product before launch. When necessary, these simulation results used as an input for our chemical designs based on defined visual criteria.