The different grades are determined by the percentage of particles in the rubber sheet.
Rubber smoked sheet.
Ribbed smoked is commonly used in different application made directly from pure latex which processed and further coagulate.
Thursday october 1 2020.
It is usually packed in large bales of 111 11kg bale or 19 metric tons per 20 foot fcl.
Ribbed smoked sheets or air dried sheets are commonly known as rss.
There are many types of sheets rubbers namely ribbed smoked sheet rubber air dried sheet tuber and sun dried sheet rubber depending on the drying methodology used.
It can be graded into rss1 to rss5 with rss1 as top grade.
Grading of rss is done based on the grade descriptions and specifications defined in the the green book of international rubber quality and packing conferences as rss 1x rss1 rss2 rss3 rss4 and rss5 over 70 of the production of natural rubber is processed as ribbed smoked sheet.
Ribbed smoked sheet rss is marketed based on visual assessment of quality.
Natural rubber latex is traditionally converted into sheet form through careful coagulation and subsequent milling process on two roll mills.