Rubber; vulcanised (other than hard rubber), non-cellular rubber, in forms other than plates, sheets or strip

HS code 400829 covers a wide range of vulcanised rubber products, excluding hard rubber and cellular rubber. This industry plays a crucial role in the global manufacturing and transportation sectors, providing essential materials for the production of various goods, from automotive parts to industrial equipment. The versatility and durability of the products classified under this code make them indispensable in many industries, contributing to the overall growth and development of the global economy.

The production of vulcanised rubber products under HS code 400829 typically involves a multi-step process. The primary raw material, natural or synthetic rubber, is first compounded with various additives such as fillers, accelerators, and vulcanizing agents. This mixture is then subjected to heat and pressure in a process called vulcanization, which cross-links the polymer chains and enhances the rubber's physical properties. The vulcanized rubber is then shaped into the desired form, such as hoses, gaskets, or seals, using techniques like extrusion, molding, or calendering.

The main inputs required for the production of vulcanised rubber products under HS code 400829 include natural and synthetic rubber, as well as a range of chemical additives like sulfur, accelerators, and antioxidants. Specialized machinery, such as mixers, extruders, and molding equipment, is also essential for the manufacturing process. Additionally, energy sources, such as electricity or steam, are needed to power the production facilities.

The products classified under HS code 400829 are used in a wide variety of applications, including the manufacture of 401110 Pneumatic tyres, new, of rubber, 401120 Pneumatic tyres, new, of rubber - of a kind used on buses or lorries, 401490 Rubber, vulcanised, other than hard rubber, articles thereof, n.e.c. in heading no. 4014, and 401699 Articles of vulcanised rubber n.e.c., other than hard rubber. These vulcanised rubber products are essential components in various industries, contributing to the functionality and durability of a wide range of goods.