Rubber

Rubber is a mid-game item commonly used for alternative recipes and some other late-game items.

Tips
Later in the game when you have collected the majority of the Hard Drives, be sure to unlock the following Alternate Recipes: Combine these with Packaged Water, Unpackage Fuel, Residual Plastic or Residual Rubber to from a closed-loop production of Plastic without any wastage, potentially increases the oil to rubber conversion ratio to 300%. Same applies to Plastic. Empty Canisters will be reused and recycled in the loop.

Gallery
Gummi Caoutchouc