Working with companies specialized in 3D printing, Lanxess has developed Low Free isocyanate urethane prepolymers that can be made into resins for 3D printing and additive manufacturing. The German chemicals company calls these resins “easy to process and safe for industrial manufacturers as well as for the casual home, office or retail user.” A target market is footwear, and especially the production of midsoles, uppers, heels and toes, as the prepolymers involved can withstand high and low temperatures, abrasion, exposure to chemicals and flexural fatigue. Furthermore, Lanxess believes that the variety of texture and hardness the resins can achieve should help footwear producers fulfill their ambitions in terms of mass customization.