Rubber latex is extracted from rubber trees. The economic life period of rubber trees in plantations is around 32 years — up to 7 years of immature phase and about 25 years of productive phase.
The soil requirement of the plant is generally well-drained, weathered soil consisting of laterite, lateritic types, sedimentary types, nonlateritic red, or alluvial soils.
The climatic conditions for optimum growth of rubber trees are:
- Rainfall of around 250 cm evenly distributed without any marked dry season and with at least 100 rainy days per year
- Temperature range of about 20 to 34 °C, with a monthly mean of 25 to 28 °C
- High atmospheric humidity of around 80%
- Bright sunshine, amounting to about 2000 hours per year at the rate of six hours per day throughout the year
- Absence of strong winds
Many high-yielding clones have been developed for commercial planting. These clones yield more than 2,000 kg of dry rubber per hectare per year, when grown under ideal conditions.
Dandelion milk has long been known to contain latex. The latex exhibits the same quality as the natural rubber from rubber trees. Yet in the wild types of dandelion, the latex content is low and varies greatly.
In Nazi Germany, research projects tried to use dandelions as a base for rubber production, but failed.
In 2013, by inhibiting one key enzyme and using modern cultivation methods and optimization techniques, scientists in the Fraunhofer Institute for Molecular Biology and Applied Ecology (IME) in
That's why it's preferred on aircraft.
For maintenance, a tire is a bit like having a solid core and rubber around.
So as long as the core isn't damaged, it's possible to put rubber back on the core to go against wear and minor damages.