TPU 90A filament is a flexible 3D printing material known for its excellent balance of softness, strength, and durability. With a Shore hardness of 90A, it is firmer than ultra-soft elastomers but still highly elastic, making it a popular choice for parts that need to bend, stretch, absorb impact, or return to their original shape after deformation. It is widely used in applications where standard rigid filaments such as PLA or ABS are not suitable.One of the key advantages of TPU 90A filament is its outstanding flexibility. It can be bent, twisted, and compressed without easily cracking or breaking, which makes it ideal for producing phone cases, wearable components, protective covers, gaskets, vibration dampers, seals, and custom grips. This elasticity also gives printed parts a comfortable and resilient feel, especially in products designed for repeated handling or motion. At the same time, the 90A hardness level provides enough stiffness for easier printing compared with softer TPU grades, while still delivering excellent mechanical performance.TPU 90A also offers strong abrasion resistance. Parts printed with this material can withstand friction, repeated contact, and long-term use in demanding environments. This makes it a reliable option for functional prototypes and end-use parts that need to maintain performance over time. In addition, TPU has good tear resistance, which helps prevent damage when components are stretched or exposed to stress. Its shock-absorbing properties are especially valuable in applications that require cushioning or protection from sudden force.Another important benefit is its chemical and weather resistance. TPU 90A performs well in many environments and can resist oils, greases, and some common chemicals. It also maintains flexibility across a relatively wide temperature range, which contributes to its usefulness in both indoor and outdoor settings. These characteristics make it suitable for automotive parts, industrial accessories, sports equipment, and consumer products that must endure real-world conditions.When printing with TPU 90A filament, users often appreciate its smoother handling compared with softer flexible materials. It can still require careful printer settings, such as slower print speeds, proper extrusion control, and a well-tuned feeding system, but the 90A formulation is generally more manageable than lower-hardness elastomers. With the right setup, it produces clean, detailed, and highly functional prints.In summary, TPU 90A filament is a versatile flexible material that combines elasticity, toughness, abrasion resistance, and good durability. It is an excellent choice for anyone looking to create strong yet bendable 3D printed parts for practical, protective, or wearable applications.