Scrap Polymers is a crafting component in 7 Days to Die. A Workbench is required for making items using Scrap Polymers. You cannot craft Scrap Polymers, they can only be obtained through scavenging.
Scrap Polymers can be harvested from tires found on the ground using any tool, but more can be harvested by using the wrench on them. It can also be obtained by using the wrench and a variety of objects.