Related Clues:
- Rubber tree yield
- Milky substance produced by some trees
- Material for some balloons
- Wet suit material
- Primer option
- Previously unknown sap
- Not strict about note for getting rubber
- Rubber solution from past times
- Liquid used in making rubber
- Milky fluid produced by plants
- Tree fluid used to make rubber
- Whitish milky fluid
- Milky source of rubber
- Juice of the rubber tree
- Stretchy stuff