Bedrock 3D TPU 85A Natural by Prusa is a premium thermoplastic polyurethane known for its excellent elasticity and tensile strength. With a Shore hardness of 85A, this filament strikes the perfect balance between flexibility and stability, making it ideal for applications requiring resistance to repeated stress. The material is particularly resistant to abrasion, oil, and chemicals, making it a durable choice for mechanical components. For optimal print results, a nozzle temperature between 220°C and 240°C and a heated bed temperature of 40°C to 60°C are recommended. Due to its flexible nature, a Bowden extruder may not always be suitable; a Direct-Drive extruder is instead recommended to ensure reliable material feeding. Suitable applications include seals, rubber bands, protective covers, shoe soles, and functional prototypes requiring movement. Strengths include high resilience and ease of handling, provided the printing environment is correctly set up. A limitation, however, is that TPU 85A can be sensitive to moisture, so the material should be dried before printing to avoid issues like stringing or clogs. In its Natural color, this filament provides a neutral base that can be easily post-processed or painted.
TPU
