Tips To Choose Between Polyester TPU Film And Polyether TPU Film

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Polyester TPU film and polyether TPU film are the two main types of thermoplastic polyurethane (TPU). Polyester TPU film is abrasion-resistant, oil-resistant, and heat-resistant, is suitable for environments without long-term humidity. Polyether TPU film is well performance of hydrolysis-resistant, low-temperature-resistant, and antibacterial, is suitable for waterproof and breathable, and medical applications. Choosing between polyester TPU and polyether TPU film is critical that directly impacts the performance, lifespan, and cost of the final product.

 

Polyester TPU maintains a stable molecular chain structure and excellent thermal oxidation resistance even under sustained high temperatures of 120°C. After long-term heat aging testing, the mechanical property degradation rate is less than 15%.

 

Polyether TPU maintains excellent flexibility even under extremely cold conditions of -60°C, with an impact strength over 30% higher than polyester TPU and does not lose the elasticity due to low-temperature embrittlement.

 

Below are tips to choose between polyester TPU film and polyether TPU film.

1. Will your product be exposed to water, humidity, or steam for extended periods of time?

If yes, prioritize polyether TPU. Examples include outdoor clothing and medical supplies.

 

2. Does your product require excellent abrasion resistance, tear resistance, and mechanical strength?

If yes, prioritize polyester TPU. Examples include industrial parts and shoe soles.

 

3. Will your product be exposed to oils, fuels, or chemical solvents?

If yes, prioritize polyester TPU. Examples include oil seals and oil bags.

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4. Will your product be used in low-temperature environments (e.g., below -30°C)?

If yes, prioritize polyether TPU. Examples include equipment for use in extremely cold regions and automotive exterior parts.

 

5. If requires medical or antimicrobial ?

If so, prefer modified polyether TPU, which film material achieve high antimicrobial efficacy.

 

6. What about the budget?

If requires cost-effectiveness, then prefer polyester TPU film.

If sufficient budget and requires ultimate performance, choose polyether TPU film.

 

Temperature resistance is one key factor to choose between polyester and polyether TPU films, the application environment and performance requirements are both considerable. Our company POLYSAN, provides high-performance polyester and polyether TPU films, flame retardant, Anti-UV, antibacterial is optional.