Crossword clues for the word: INSULATOR The word INSULATOR has appeared as an answer to at least 6 crossword clues on different crossword puzzles. Crossword clues for INSULATOR Showing 1 to 6 of 6 results Clue(s) "Asbestos, e.g." "Asbestos, for one" "Glass, at times" "Porcelain, e.g." Material of such low conductivity that the flow of current through it is negligible Offensive remark by men about Alsop originally being a poor conductor