URETHANE
Set to 5 different clues across 5 published puzzles, most often “Bowling ball material” — The New York Times, Saturday, 29 August 2009.
8 letters
Every clue on record, most used first
- Bowling ball materialonce
The New York Times — Saturday, 29 August 2009
- Foam materialonce
The New York Times — Monday, 28 November 2005
- Foam ingredientonce
The New York Times — Friday, 14 May 2004
- Skateboard wheel materialonce
The New York Times — Saturday, 12 October 2002
- Insulation ingredientonce
The New York Times — Saturday, 1 August 1998