Once a sack of PolyIsoPrene pellets has been obtained, it can be smelted using a furnace into a block of PolyIsoPrene. A bounce hight of twelve blocks can be achieved by holding onto the space bar on a PolyIsoPrene block. Holding the shift button will dampen the bounce and allow the player to stop bouncing quickly. PolyIsoPrene blocks can also absorb shock if jumped onto from a high place, saving the player fall damage. Blocks of PolyIsoPrene can be crafted into slabs, stairs, and walls, and can be dyed to yield colored PolyIsoPrene blocks using a crafting table.
| Bounce Height
| Release Version