Blog | The Superiority of Polyurethane Rubber as the Best Screen Protector

The Superiority of Polyurethane Rubber as the Best Screen Protector

23 May 2023

The Superiority of Polyurethane Rubber as the Best Screen Protector

Unveiling Unmatched Resilience: The Polyurethane Rubber Screen Protector

In the realm of screen protectors, the choice of material plays a pivotal role in safeguarding our precious devices from damage. While numerous options flood the market, polyurethane rubber emerges as the indisputable champion, offering unparalleled resilience and exceptional protection. In this blog post, we delve into the concept of polyurethane resilience and shed light on why polyurethane rubber reigns supreme as the ultimate screen protector material.

Understanding Polyurethane Resilience:

When it comes to deformation, the energy required to achieve it is crucial. Similarly, the energy expended during recovery from deformation is equally significant. Polyurethanes, known for their remarkable properties, introduce the concept of polyurethane resilience. This resilience refers to the ratio of energy returned during recovery to the energy needed for deformation, serving as a vital indicator of material performance.

The Energy Advantage of Polyurethane Rubber:

While some materials may exhibit perfect elasticity and return all the energy during recovery, others fall short due to energy losses, typically in the form of heat. This phenomenon, known as hysteresis, arises from internal friction within the elastomer. Screen protectors made of polyurethane rubber boast exceptional resilience, akin to a lively bouncy ball. Here’s why: all the energy input during deflection is efficiently returned on the rebound. Consequently, polyurethane screen protectors minimize energy loss, ensuring optimal device protection, and minimal visible scratches and damage.

Measuring Polyurethane Resilience:

Polyurethane resilience can be accurately measured through various methods, with the widely recognized Bashore Rebound Test leading the way. This test quantifies resilience on a scale of 0 to 100%, offering valuable insights into a material’s ability to recover energy. An ideal screen protector material would exhibit 100% resilience, fully restoring the input energy during recovery.

Polyurethane Resilience Variations:

To emphasize the versatility of polyurethane rubber, it is essential to note that resilience can vary significantly across different compounds, regardless of hardness. The resilience of polyurethane materials also depends on the temperature they are subjected to. When exposed to heat, polyurethane parts become more pliable, reducing internal friction and subsequently boosting resilience. This dynamic property makes polyurethane rubber an adaptive choice for screen protectors, capable of withstanding varying environmental conditions while maintaining exceptional performance.


In the competitive world of screen protectors, polyurethane rubber stands head and shoulders above the rest, offering unbeatable resilience and uncompromising protection for your valuable devices. Its ability to efficiently return energy during recovery ensures minimal energy loss, resulting in unmatched device safeguarding. The diverse range of compounds and the temperature-sensitive nature of polyurethane resilience further solidify its position as the superior material for screen protectors. When it comes to shielding your device, trust in the reliability and resilience of polyurethane rubber for optimal screen protection.