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.
In water-based paints, the binder is usually a plastic, either acrylic, vinyl or a combination of both. The binder in oil-base paints is either a natural oil or a synthetic resin (alkyd). Paint is named for its binder, so latex paint is the common name for water base, while alkyd paint is the other name for oil base. Oil-Base vs. Water-Base. An oil-base coat takes longer to dry than latex, but some painters prefer it for this very reason. The longer the drying time, the better the paint will flatten out to hide brush marks. The odor is strong, but for durability oil based paint is hard to beat. Use it on primed walls or woodwork and already-painted surfaces.