Which step comes last in the sequence of processing required to produce finished rubber goods?

The last step in the production of finished rubber goods is vulcanization. This process involves the chemical treatment of rubber using heat and sulfur, which creates cross-links between polymer chains. As a result, the material gains increased strength, elasticity, and durability, making it suitable for various applications in finished goods.

Prior to vulcanization, the rubber undergoes compounding, which includes the addition of various fillers, accelerators, and other chemicals needed to achieve desired properties. Mixing follows, where these additives are thoroughly blended with the rubber to ensure uniformity. Molding is the process of shaping the rubber into specific forms or products, typically before it is subjected to vulcanization.

Therefore, vulcanization is the crucial final step that transforms the prepared rubber material into a stable, useful product, ensuring that it meets the necessary performance characteristics for finished goods.