Cryogenic, or processing at extremely low temperatures (-60°C to -100°C). The material is cooled in a tunnel cooler, using liquid nitrogen. At such low temperatures, the rubber acquires a glassy texture, which makes it easy to grind.
The polymers remain intact, with small smooth pieces of rubber being the end result.
|Shoe soles||0,0 – 0,2 mm|
|Backing||0,0 – 0,2 mm||0,2 – 0,8 mm|
|Floor mats||0,2 – 0,8 mm|
|Sport, infill||0,8 – 2,0 mm|
|Other||0,0 – 0,8 mm||0,8 – 2,0 mm|
The rubber granulate can be packed in various ways:
* = After filling, the big-bags are protected by a tarpaulin, tightly pulled around the top end of the big-bag with a foil. All this is done in order to protect the fabric and the loops on the top side of the big-bag against weather influences.