Plastic
From LSWiki
Plastic
Phase: Solid Rarity: Very Exotic Properties: Organic and Polymer
No specific help is available for this material.
Development Information: The black plastic material was created by Lost Souls; the source code was last updated Tue Mar 15 02:18:42 2016.
Found on old Garbage Thond disposal units' buttons, a few cubes (puzzle fill-the-path cubes IIRC), developers' nerf guns and arrows shot from those.