Crossword clues for the word: HEATSEAL The word HEATSEAL has appeared as an answer to at least 6 crossword clues on different crossword puzzles. Crossword clues for HEATSEAL Showing 1 to 6 of 6 results Clue(s) "Make airtight, in a way" "Protect from the air, in a way" Make airtight, in a way [4] One way to keep the air out Temperature-controlled food-packing feature What holds a screen to a laptop