Related Clues:
- Nut and bolt spacer
- Material for making airtight or watertight
- She's engaged in battle to keep things firm
- Ring under nut
- Filler used to close a gap
- Material used for an airtight or watertight join
- It should stop worker going on main line
- Material to stop leaks
- Bond shared between two creatures
- Mammal and insect getting closer?
- Impervious gap filler
- Impervious filler
- Perhaps laundryman has had a sex change?
- Material for plugging leaks
- Spacer for nut and bolt