Technically Specified Rubber (TSR) is the most widely traded commercial form of natural rubber

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Technically Specified Rubber
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Kokel, Nicolas
3/4/2026 1:37 PM


 Technically Specified Rubber (TSR) | Source: Madapally Trading

Technically Specified Rubber (TSR), also commonly referred to as block rubber, is the most widely traded commercial form of natural rubber, representing the dominant portion of global natural rubber supply. Unlike older grading systems that relied on visual inspection, TSR is classified and traded based on precise, laboratory-measured technical parameters, making it the preferred choice for large-scale industrial procurement.

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