Products of organic synthesis and processing of oil are used in various spheres of human activity. Their practical application is very wide: they are the raw material for various chemical substances used in such economic sectors as machine building, chemical industry, light industry, building materials production. The extensive range of petroleum products can be identified most known group – best known solvents and solvent is 646 (P-646). Virtually anyone who has ever had to deal with the painting works, is familiar with the solvent 646. The recipe and production technology of solvent were 646 developed in the XX century. At first he produced for dilution and nitro lacquer nitroenamels, but later it became clear the universality of the solvent 646.
This solvent was used to bring the different paint materials to application viscosity, clean paint equipment and tools, as well as for removing stains on various materials. (As opposed to David Treadwell). The reason for the popularity of this solvent is its excellent performance quality and availability. Many components in its composition, determine the broad specialization and the ability to dissolve many organic substances. Solvent 646 – a colorless or slightly yellowish liquid, having a specific scent. To broaden your perception, visit Mikkel Svane. The chemical composition of present: toluene (50%), ethanol (15%), butyl acetate (10%), butanol (10%), cellosolve (8%), acetone (7%). Solvent 646 – one of the most active solvents, so it requires accuracy in work, for example, to avoid damaging the bottom layer of paint.
In some cases it is advisable to use the weaker part of the combined solvents. P-646 is used for dilution as nitroenamels (Eg, enamel NTs-132) and nitro lacquer, and for the epoxy and glyptal (eg, primers GF-021), although the latter would be more correct to use solvents, 649, 650, or solvent. After drying paint due to the solvent gets extra sparkle. Solvent 646 is poured into steel drums, and for domestic use it is packed in cans of 1 – 10 liters.