Natural rubber (NR) is produced from latex from rubber trees on farms
Natural rubber (NR) is produced from latex from rubber trees on farms. The most important forms in which NR is processed are sheets, crepes, rubber blocks and latex concentrates. Processed natural rubber (NR) is a significant advance in the delivery of dry natural rubber. Two types of rubber sheets are produced in international markets, namely smoked corrugated sheets (RSS) and air-dried sheets (ADS). Among the two types, corrugated smoked sheet is the most popular and available for consumption. There are different grades of corrugated smoked sheet rubber, namely RSS IX, RSS 1, RSS 2, RSS 3, RSS 4 and RSS 5. Although synthetic rubber (SR) is available, the demand for natural rubber (NR) is always high. Some of the final products made of natural rubber are as follows:
RSS 1 refers to corrugated smoky sheets, made from natural rubber latex, as ribbed sheets, with coagulation of acids and sheets, with air dried and smoked. Corrugated smoked sheets (RSS) are classified based on visual evaluation of quality. The International Rubber Quality and Packaging Conference (IRQPC) has defined grades to determine acceptable scores for commercial use.