Kapton, a foil-like polyimide, possesses excellent thermal and chemical stability and so is often used as external insulation that wraps spacecraft, satellites, and planetary rovers. It's also used to make insulating blankets. Kapton's molecular structure is made up of carbons and hydrogens inside benzene rings, giving it its strong thermal and chemical properties but also making it difficult to produce except for in very thin sheets. That's changing now, though, because a group of researchers at Virginia Tech have figured out how to 3D print Kapton. Find out more at 3DPrint.com: http://3dprint.com/186086/virginia-t...rinted-kapton/