Products
 
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 CV
SIR 10
SIR 20
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