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.
Difference Between Oil Paintings vs. Acrylic Paintings. Even artists who stand face to face with an intriguing piece of art sometimes have trouble deciding whether it's an example of an oil painting or an acrylic piece. However, there are distinct differences between oil paintings and acrylic paintings.