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What is the difference between hot melt tires and semi-hot melt tires?

1 Answers

AbelFitz

07/30/25 10:25am

The differences between hot melt tires and semi-hot melt tires are as follows: 1. Different properties. Hot melt tires melt into a gel-like state when the tread temperature rises due to friction with the road surface during use, providing excellent grip for the vehicle. Semi-hot melt tires can achieve grip close to that of full hot melt tires when the temperature rises, while maintaining controlled wear levels. 2. Different grip levels. Semi-hot melt tires soften the tread when reaching operating temperature, producing high adhesion to enhance grip. They feature more advanced tread designs that achieve the same drainage effect as regular tires even with reduced tread patterns. Hot melt tires turn into a gel-like state when the surface temperature reaches 90 degrees Celsius, improving grip—this is the principle behind the warm-up lap in F1 racing. 3. Different characteristics. Hot melt tires increase the contact area with the road surface, enhancing grip at certain temperatures. Semi-hot melt tires do not have this feature.

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