Is the tpu waterproof film resistant to high temperatures?

TPU waterproof membrane has certain high temperature resistance, but its temperature resistance varies depending on the material type, formula and application scenario. The long-term use temperature of ordinary TPU waterproof membranes usually does not exceed 80C, while the specially designed high-performance TPU waterproof membrane can withstand high temperatures from 130C to 200C.

‌Overview of the high temperature resistance performance of TPU waterproof membrane‌

The high temperature resistance of TPU (thermoplastic polyurethane) waterproof films depends on their material formulation and structural design. The following is a detailed analysis of its temperature resistance:

‌Ordinary TPU waterproof membrane‌.

Long-term use temperature: generally not exceeding 80C, exceeding this temperature may lead to softening or degradation of performance. ‌‌‌

Short-term temperature resistance: up to 120C, but it will gradually soften until it melts. ‌‌

‌High-performance TPU waterproof membrane‌.

Heat-resistant TPU: By adjusting the molecular structure or adding reinforcement materials (such as glass fiber), the temperature resistance can reach 130C to 200C. ‌‌‌

Polyester-based TPU: The temperature resistance is better than that of polyether, and can exceed 130C. ‌‌

‌Factors affecting high temperature resistance

‌Material Formula‌: Different series of TPUs (such as polyester and polyether) have significant differences in temperature resistance. ‌‌

Thickness and structure: Thinner films are easier to soften at high temperatures, and reasonable design can improve stability. ‌‌

‌Addants‌: For example, glass fiber modification can significantly improve heat resistance. ‌‌

‌‌Application scenario suggestions

‌General environment‌: Ordinary TPU waterproof membrane can be used for under 80C. ‌‌

‌High temperature environment‌: The heat-resistant or modified TPU needs to be selected, such as outdoor equipment or industrial use. ‌‌