... of water, make into a paste. Add about 1 cup of chemical water (3/4 cup Urea dissolved in 1 quart hot water) to the paste. Mix thoroughly. Add about 1 cup of the chemical water to each color. 5. Remove yarn from Soda Ash soak ...

... from Building Green.com states: "Icynene is environmentally friendly and does not contain any ozone-depleting chemicals. Water serves as the foaming agent, reacting with the other components to generate CO2, which expands the foam. "Second ...