Polyisoprene is a natural ingredient also known as 'Natural Rubber'. Rubber is obtained from trees through tree taps. PolyIsoPrene is a common polymer that is used in Polycraft World in a variety of settings. It can be to create different building blocks, such as foundation blocks, stairs, walls, slabs and double slabs. As a crafting component, PolyIsoPrene pellets comes in three different sizes: bags, sacks and powder kegs.
A stack of pellet bags crafts into a sack, and a stack of sacks crafts into a keg. The shapeless crafting recipes are demonstrated below.
|Crafting Min Heat Intensity
|Crafting Max Heat Intensity
One bag of PolyIsoprene Pellets are obtained every 2 minutes from a tree tap. If the player uses Jungle tree wood, this is decreased to 1 minute. All faces of a wood log block will provide rubber, with no maintenance cost, however plank blocks will not.