Physical properties of sodium silicate-based substances make them very attractive for commercial/industrial use. Liquids and solids based on sodium silicate and produced by PQ Corporation have a density from 1.6g/cubic cm. to about 1.4 g/cubic cm.
A very big difference between acrylic and oil paint is the drying time. Acrylics dry in a matter of minutes to hours and oils dry in a matter of hours to weeks! This is a huge factor when choosing whether or not to choose oils versus acrylics.
Acrylic. Acrylic paint is made by mixing pigements or dyes into an acrylic polymer emulsion. An emulsion is a liquid dispersed into another liquid that is incapable of mixing. In acrylic polymer emulsion, water is dispersed into the acrylic polymer. The water molecules do not allow the acrylic polymer molecules to bind tightly to one another.