Ribbed Smoked Sheets Grade 3 ( RSS 3 )

RSS 3 : Ribbed Smoked Sheets Grade 3

First, Ribbed Smoked Sheets (RSS 3) is coagulated from high quality natural rubber latex produced by Pexim Rubbers. Rubber latex processed into ribbed rubber sheets. Then, we sheeted, dried, smoked, and visually graded.

RSS3 rubber sheets are used in the production of Tyres (tires) & Tubes, Tread Carcass, Off road tyres & ADV tyres, Extruded hoses, Footwear etc.

RSS3 have some slight blemishes in color. It can have small bubbles and small specks of bark permissible in this grade. Oxidized spots or streaks; weak and heated, under-cured, over-smoked with opaque and burnt sheets are not permissible in this grade. The rubber must be dry; clean, strong, sound and free from blemishes, blisters, sand, dirty packing.

Especially, tyre industry is the biggest consumer of RSS3 rubber sheets. The majority of rubber is exported as ribbed smoked sheets (over 50%). And ribbed smoked sheet no.3 ( RSS 3 ) constitutes the major part.

Please check test result here

Natural Rubber RSS 3 at Pexim Manufactury

Natural Rubber RSS 3 at Pexim Manufactury

Some information about RSS3

Ribbed Smoked Sheet has advantages of cleanness, color and doesn’t contain defects such as air bubble that can be seen with naked eyes. The important thing is guarantee purity to produce RSS natural rubber. This is very necessary to supply clean water to dilute latex and to clean during the time of forming rubber sheets. It’s necessary to collect latex early to avoid quick formation of coagulum and it’s possible to use popular anti-freeze agents such as Na2SO3.

Intake of using anti-freeze agent may be various depending on condition but not more than 0.05% in case of dry rubber. There are some freezing methods, it’s possible to freeze into separate blocks by using a freezing kettle or it’s possible to freeze into continuous sheets.

After transporting latex to the factory, take a sample of material DRC to check; there are many methods of checking, the most popular method is now to check TSC quickly, then convert into DRC with a comparison table.

*  Specification of RSS3: 

Information of RSS3 Natural Rubber

CONTACT: +84 97 611 2948 ( Ms. Ruby )

Test Results of RSS3



  • 33.33 kg/ bales, 600 bales/fcl 20 feet
  • · Bale Packaging Normal 0.03 mm PE bag with melting temperature under 109 oC.
  • · Thick (0.13 mm) PE bag,
Natural Rubber RSS 3 in Container

Natural Rubber RSS 3 in Container

CONTACT: +84 97 611 2948 ( Ms. Ruby ) for more informations.

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