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.
Natural 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.
EXCELTEX® natural rubber latex concentrate is available in six types. EXCELTEX® is the registered trademark for KLK's rubber latex concentrate.
General Purpose EXCELTEX Types
This group consists of one 'high' and one 'low' ammonia type. Both conform to the respective standard grades listed in the International Standards Organisation (ISO) and Standards & Industrial Research Institute of Malaysia (SIRIM) Specifications for centrifuged, ammonia-preserved, natural latex concentrates.
- EXCELTEX-HA
This is a general purpose, 'high' ammonia type of latex concentrate. By far the most widely used natural rubber latex concentrate, this type will fit into almost any formulation not requiring a special type. This type can be readily blended with standard synthetic lattices in any proportions.
- EXCELTEX-TZ
This is a general purpose latex applicable in dipping, foaming and other latex purposes. Its main advantages are :-
- Low ammonia system, which obviates the need to de-ammoniate the latex concentrate before use.
- Low toxic grade, as a result of which health hazard and environmental/pollution problems can be avoided.
- TMTD and ZnO, which act as secondary preservatives in the latex concentrate, are popular compounding ingredients (i.e. accelerator and activator respectively) in latex processing. Hence, they do not present any unpredictable problems. Minor production cost saving may be possible.
