NATURAL RUBBER (NR)
Standard Thai Rubber (STR) is a new process of rubber developing from natural rubber to technical specified rubber. It has been introduced in Thailand since year 1968. STR comprises of 4 main groups – STR10, STR20, STRxL and STR CV – depending on the specific control variables.
STR10 and STR20 are a large volume grade of technical specified natural rubber. It is processed from field coagulum (cuplump) and mixed with rubber sheet or processed from cuplump only. There are two drying processes, the first process is converting rubber into crumbs and drying rubber at higher temperature of 100oC through dryer trolley. The second process is converting rubber into a crepe sheets, hanging dry and convert into crumbs rubber and drying rubber through peletizer machine. Our STR10 and STR20 product were processed using the second process because it gives us a consistent properties of rubber.
Our consistent and efficient quality control programs, starting from selection of raw material to our extensive laboratory testing will ensure that all bales produced and shipped will meet, if not exceed, your requirements.
Specification:-
| Parameter | STR10 | STR10 CV | STR20 | STR20 CV |
| Dirt (max, % wt) | 0.08 | 0.08 | 0.16 | 0.16 |
| Ash (max, % wt) | 0.60 | 0.60 | 0.80 | 0.80 |
| Volatile Matter (max, % wt) | 0.80 | 0.80 | 0.80 | 0.80 |
| Nitrogen (max, % wt) | 0.60 | 0.60 | 0.60 | 0.60 |
| Initial Plasticity (Po) (min) | 30 | N/A | 30 | N/A |
| Plasticity Retention Index (min) | 50 | 50 | 40 | 40 |
| Mooney Viscosity* (ML, 1+4, 100oC) | N/A | 60 (+7, -5) | N/A | 65 (+7, -5) |
| Colour Coding Marker | Brown | White on Brown background | Red | White on Red background |
Packaging:-
- 35 kg per bale
- In shrinkwrapped/crated pallet @ 1,260 kgs
- Shrinkwrapped/crated pallet in 20ft container: ±21 MTs per 20ft container
| STR 10 | STR 20 | PACKAGING |
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