Oil paint Presbyter, a 12th-century German monk, recommended linseed oil but advocated against the use of olive oil due to its long drying time. Oil paint was mainly used as it is today in house decoration, as a tough waterproof cover for exposed woodwork, especially outdoors. In the 13th century, oil was used to detail tempera paintings. In the 14th century, Cennino Cennini described a painting technique utilizing tempera painting covered by light layers of oil. The slow-drying properties of organic oils were commonly known to early painters. However, the difficulty in acquiring and working the materials meant that they were rarely
Metro Fuel Oil Energy plans to process 100% renewable biodiesel which can be blended with heating oil or diesel fuel. The plant will employ technology that will enable United Metro Energy to capture and utilize waste generated by the process. The plant is scheduled to open in Third Quarter 2012. United Metro Energy was founded in 1942 when Pauline Pullo recognized that home heating oil was a cleaner, more efficient alternative to coal in the heating fuel market. United Metro Energy remained a relatively modest retail operation until, in the late 1970s, when Paul J. and Gene V. Pullo, Pauline’s grandsons, took over