The invention relates to novel polyurethane prepolymer compositions, methods of preparing the compositions, and methods of applying the compositions in a single step, e.g., one pour, to form a foamed base mat as a multi-use surface. The two-component system of the invention includes reacting diisocyanate selected from toluene diisocyanate, methylene diphenyl diisocyanate, and mixtures thereof, and polyol selected from diol, triol, quadrol and mixtures thereof, to form a polyurethane prepolymer component and reacting this component with aqueous sodium silicate.

The invention relates to novel polyurethane prepolymer compositions, methods of preparing the compositions, and methods of applying the compositions in a single step, e.g., one pour, to form a foamed base mat as a multi-use surface. The two-component system of the invention includes reacting diisocyanate selected from toluene diisocyanate, methylene diphenyl diisocyanate, and mixtures thereof, and polyol selected from diol, triol, quadrol and mixtures thereof, to form a polyurethane prepolymer component and reacting this component with aqueous sodium silicate.

Emulsion of isocyanate in water. The isocyanate comprises one or more of a diisocyanate, a polyisocyanate, a derivative of a diisocyanate or a derivative of a polyisocyanate. The emulsion comprises water glass. The ratio in the emulsion of the weight of the combination of water and water glass on the one hand to the weight of the isocyanate on the other hand is preferably between 1.2 and 6.

A composition, utility material, and method of making a utility material id disclosed. A composition having an improved setting time may include a plurality of microparticles mixed with a sodium silicate binder and an isocyanate setting agent, where the microparticle composition has a setting time of less than or equal to one hour. A utility material may be a wallboard that includes the composition.