Overview
High Hardness Polyester TPU is a thermoplastic polyurethane variant engineered for applications requiring superior mechanical strength and durability. It combines the elasticity of rubber with the toughness of plastic, making it ideal for demanding environments. Polyester-based TPU is known for its resistance to oils, fuels, and abrasion, outperforming other elastomers in harsh conditions. This material is widely used in industries such as automotive, manufacturing, and consumer goods due to its versatility and performance. Its ability to be processed via injection molding, extrusion, or blow molding adds to its appeal for large-scale production.
Physical and Chemical Properties
High Hardness Polyester TPU exhibits a Shore D hardness typically ranging from 60D to 85D, making it suitable for rigid applications. Its tensile strength can exceed 50 MPa, with elongation at break varying between 200% and 400%, depending on the formulation. The material retains flexibility even at low temperatures, down to -30°C. Chemically, it resists hydrolysis, oils, and solvents, though prolonged exposure to strong acids or bases may degrade it. Its thermal stability allows for short-term use up to 120°C, though continuous exposure above 80°C may cause gradual softening.
Main Applications
In the automotive sector, High Hardness Polyester TPU is used for bushings, seals, and under-the-hood components due to its resistance to oils and fuels. Industrial applications include conveyor belts, rollers, and machinery parts requiring abrasion resistance. Consumer goods like high-performance footwear soles, protective cases, and sports equipment leverage its durability. Medical devices and electronic cable sheathing also benefit from its non-toxic properties and flexibility. Custom formulations can adjust hardness, color, and UV resistance for niche uses.
Safety and Storage
While TPU is generally non-hazardous, processing at high temperatures may release fumes; adequate ventilation is recommended. Use personal protective equipment (PPE) such as gloves and masks during handling to minimize dust exposure. Storage should be in sealed containers to prevent moisture absorption, which can affect processing. Avoid direct sunlight and extreme temperatures to maintain material integrity. Shelf life is typically 12-24 months under proper conditions.
B2B Procurement Guide
When sourcing High Hardness Polyester TPU, prioritize suppliers with ISO or industry-specific certifications. Request technical data sheets (TDS) to verify properties like hardness, tensile strength, and chemical resistance. Sample testing is advisable for critical applications. Bulk purchases (e.g., >1 ton) often reduce costs by 10-20%. Consider regional suppliers to minimize logistics expenses. For custom formulations, lead times may extend to 4-6 weeks. Payment terms like LC or TT are common in international transactions.
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