Plexiglass. The most common clear plastic sheet is plexiglass. It consists mainly of the polymer Polymethyl methacrylate (PMMA). Possessing high performance properties and the possibility of obtaining various modifications based on it, plexiglass quite deservedly takes first place among transparent and colored translucent sheet plastics. Plexiglas has a light transmission coefficient of about 92%, which is higher than that of glass and other transparent plastics, it can both transmit and retain ultraviolet light. Most transparent sheet plastics, as well as silicate glass, have a slightly noticeable shade, in this respect, plexiglass is an exception, having the greatest transparency and opacity. Impact resistance, relative to the same thickness of a sheet of silicate glass, is about 5 times higher for extrusion and 11 times higher for ordinary injection molded plexiglass, excluding special types of impact-resistant plexiglass. This ratio may vary, depending on the brand of plexiglas or on the imagination of the seller, here we present the data of the world's leading manufacturer of plexiglass Evonik Rohm Plexiglas, for the brands of ordinary transparent Plexiglas Plexiglas XT and Plexiglas GS. The density of plexiglas is 1.19 g / cm3, which is approximately 2-2.5 times less than that of glass. The surface of the sheet is flat and smooth, the new sheets are protected by a special transport film. Sheet thickness 0.5-25 mm for extrusion and 1-250 mm for casting. For a sheet of molded plexiglass with a size of 2x3 meters, due to the production technology, the thickness tolerance can be 0.5 mm, the difference in thickness of the extruded plexiglass sheet is insignificant. The temperature of continuous operation of this transparent plastic is in the range of -40 + 80 ° С and depends on the grade of plexiglass. Plexiglass sheets, due to light and weather resistance, are used in construction, for glazing windows and partitions, as well as for the manufacture of various plastic products. Plexiglas is perfectly processed, glued and thermoformed, and this plastic can be processed on conventional lathes or woodworking machines, using the appropriate drills and blades, therefore, plexiglass is the most popular material for making products from transparent plastic. In addition to plastic in the form of a sheet, you can buy Plexiglas pipes or rods.