insulator
material whose internal electric charges do not flow freely, and which therefore does not conduct an electric current
electrical insulation paper
paper types that are used as electrical insulation in many applications due to pure cellulose having outstanding electrical properties
Mott insulator
materials classically predicted to be conductors, that are actually insulators
topological insulator
material with insulating bulk but conductive boundary
solder mask
layer of polymer applied to printed circuit boards
backstay insulator
allow for the electrical isolation of a section of wire on a yacht