| RUBBER PRODUCTS |
| The rubber tree, Hevea
brasiliensis, is a native of the Amazonian forest. Grown
now in parts of Africa and Asia, it is one of the world's most
closely studied and carefully tended plants.
Rubber is elastic, flexible, airtight, watertight,
long lasting and insulating, to mention just a few of its
properties. There are thousands of products, which take advantage
of these useful properties.
The KLK Group produces rubber latex concentrate and block rubber. |
| |
| BLOCK RUBBER |
| Dry natural rubber graded
on the basis of technical parameters is called Technically Specified
Rubbers (TSR). The International Standards Organisation ("ISO")
first came out with the draft Technical Specifications for Natural
Rubber in 1964. Based on these specifications, Malaysia introduced
their Standard Malaysian Rubber ("SMR") scheme in
1965. Since then, all natural rubber producing countries started
producing and marketing natural rubber as TSR, including Indonesia,
the designation being Standard Indonesian Rubber ("SIR"). |
| |
The SMR grades produced
by KLK's Malaysian factories are :
| |
 |
SMR
CV |
| |
|
SMR L |
| |
|
SMR 10 |
| |
|
SMR 20 |
|
| SMR Specification Scheme |
| |
TSR CV |
TSR L |
TSR 10 |
TSR 20 |
| Parameter |
Unit |
SMR
CV60 |
SMR
L |
SMR
10 |
SMR
20 |
| Dirt (max) |
% wt. |
0.02 |
0.02 |
0.08 |
0.16 |
| Ash (max) |
% wt. |
0.50 |
0.50 |
0.75 |
1.00 |
| Nitrogen (max) |
% wt. |
0.60 |
0.60 |
0.60 |
0.60 |
| Volatile Matter (max) |
% wt. |
0.80 |
0.50 |
0.80 |
0.80 |
| Po (min) |
% wt. |
NA |
35 |
30 |
30 |
| PRI index (min) |
|
60 |
60 |
50 |
40 |
Lovibond Colour :
Individual Value (max) |
|
NA |
6.0 |
NA |
NA |
| Lovibond Colour : range (max) |
|
NA |
2.0 |
NA |
NA |
Mooney Viscosity
(ML, 1+4, 100ºC) |
|
60
+/- 5 |
NA |
NA |
NA |
|
|
| Common Test Results (Typical Example) of
SMR Produced by KLK |
| |
TSR CV |
TSR L |
TSR 10 |
TSR 20 |
| Parameter |
Unit |
SMR
CV60 |
SMR
L |
SMR
10 |
SMR
20 |
| Dirt (mean) |
% wt. |
0.008 |
0.010 |
0.020 |
0.020 |
| Ash (mean) |
% wt. |
0.20 |
0.20 |
0.30 |
0.30 |
| Nitrogen (mean) |
% wt. |
0.45 |
0.45 |
0.30 |
0.30 |
| Volatile Matter (mean) |
% wt. |
0.23 |
0.23 |
0.25 |
0.25 |
| PO (mean) |
% wt. |
36 |
43 |
37 |
36 |
| PRI index (mean) |
|
85 |
87 |
67 |
64 |
Lovibond Colour :
Individual Value (mean) |
|
NA |
3.5 |
NA |
NA |
| Lovibond Colour : range (max) |
|
5 |
2.0 |
NA |
NA |
Mooney Viscosity
(ML, 1+4, 100ºC) |
|
60
+/- 5 |
NA |
NA |
NA |
|
| |
| The SIR grades produced in KLK's
Indonesian factory are :
|
| SIR Specification Scheme |
| |
TSR CV |
TSR 10 |
TSR 20 |
| Parameter |
Unit |
SIR
3CV60 |
SIR
10 |
SIR
20 |
| Dirt (max) |
% wt. |
0.03 |
0.10 |
0.20 |
| Ash (max) |
% wt. |
0.50 |
0.75 |
1.00 |
| Nitrogen (max) |
% wt. |
0.60 |
0.60 |
0.60 |
| Volatile Matter (max) |
% wt. |
0.80 |
0.80 |
0.80 |
| PO (min) |
% wt. |
30 |
30 |
30 |
| PRI index (min) |
|
60 |
60 |
50 |
Lovibond Colour :
Individual Value (max) |
|
NA |
NA |
NA |
Mooney Viscosity
(ML, 1+4, 100ºC) |
|
60
+/- 5 |
NA |
NA |
|
| |
| Common Test Results (Typical Example) of
SIR Produced by KLK |
| |
TSR CV |
TSR 10 |
TSR 20 |
| Parameter |
Unit |
SIR
3CV60 |
SIR
10 |
SIR
20 |
| Dirt (mean) |
% wt. |
0.008 |
0.025 |
0.025 |
| Ash (mean) |
% wt. |
0.20 |
0.35 |
0.35 |
| Nitrogen (mean) |
% wt. |
0.45 |
0.30 |
0.30 |
| Volatile Matter (mean) |
% wt. |
0.35 |
0.35 |
0.35 |
| PO (mean) |
% wt. |
34 |
26 |
24 |
| PRI index (mean) |
|
85 |
65 |
65 |
Lovibond Colour :
Individual Value (mean) |
|
NA |
NA |
NA |
Mooney Viscosity
(ML, 1+4, 100ºC) |
|
60
+/- 5 |
NA |
NA |
|
 |
