Answer | Crossword Clue |
---|---|
MORTAR | Gap-filling material |
SHIM | Gap-filling wedge |
SHIMS | Gap-filling wedges |
SHIM | Wedge filling a gap |
SHIM | Wedge for filling a gap |
intumescent | (of a coating or sealant) Swelling up when heated, thus protecting the material underneath or sealing a gap in the event of a fire |