crumb rubber

Crumb rubber is generally manufactured from automotive and truck scrap tires. During the manufacturing process steel and fluff is removed leaving tire rubber with a granular consistency. Continued processing with a granulator, cracker mill, possibly with the aid of cryogenics, reduces the size of the particles further. The particles are sized and classified based on various criteria including color (black only or black and white), magnetically separated, and removal of fluff. The granulate is sized based on a passing through a screen with a size based on a dimension (1/4") or mesh (10, 20, etc.)
See more at Wikipedia.org...

Ground rubber fragments the size of sand or silt used in rubber or plastic products, or processed further into reclaimed rubber or asphalt products.

B: (Kimia) karet remah
Built to Babylon by Hikmat Gumilar Visit my Website;