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.
1 takes less time to dry-if you compare alkyds to conventional oil paint the principle difference lies in the drying time. 2  They dry much faster than oils and much slower than acrylics. 3  Paintings can be completed in one session. 4  Glazing and impasto techniques take much less time. 5  Thin layers are dry within 24 hours.