UV-20-87 is a concentrated TPU with anti UV function. It's specially designed for blowing process. You can observe the significant effect by adding small amount of UV-20-87 to your process (3% to 5%). The unique formula of UV-20-87 changes physical properties of membrane during the production process of membrane. UV-20-87 is fully compatible with both type of polyester and polyether TPU. The amount of adding is adjustable based on process request.