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.
Same pigment, different binder. In a nutshell, most paints are made by mixing dry paint pigment together with a wet binder. The difference between the type of paints, for example, oil paint, acrylic paint or watercolour is simply due to the different type of binder used.