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Natural rubber RSS 2
Natural rubber RSS 2
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Code: RSS2

+ Color: Light brown
+ Origin: Vietnam;
+ Packing: 33.33 kg 35 kg/ bale or 1,260 kg/ pallet
+ Payment terms: L/C or T/T
+ Minimum order quantity: From 2 to 5 Container 20 feet
Price: [please contact us for the best price]

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RSS (ribbed smoked sheets) 
Form:  oil
Part:  bark
Extraction type:  liquid-solid extraction
Dry mould no more than 10%
The fresh latex is diluted to a rubber content of 15 - 16% and coagulated in coagulation tanks using formic acid or acetic acid. Lumps of coagulum are formed after the acid has acted for 3-4 hours.

After milling and washing, sheets between 2.5 and 3.5 mm thick, 24 cm wide and 90 or 135 cm in length are produced. The final mill is an embossed mill, which gives the sheets their ribbed structure.

Since these rubber sheets are not washed as intensively as crepes, they contain a higher proportion of serum constituents which encourage mold and rotting. For this reason, the sheets undergo an additional preservation process in which they are smoked in smokehouses.

The sheets are hung in the smokehouses and dried for a week at temperatures up to 60°C. The smoke resulting from burning Hevea (rubber tree) wood and other organic materials such as coconut husks preserves the sheets.

The specific smell of these sheets is caused by the materials used to produce the smoke. The sheets are pressed into bales and wrapped in protective sheets. The surface is protected from oxidation by application of a bale coating solution and talcum.