Solvent
4) solvent - a chemical substance or mixture of chemical substances in liquid form that is part of a coating material and used for regulating its viscosity, dissolving pigment and/or binding particles of the material;
Source: Government Decree of the Russian Federation dated 09.03.2010 No. 132 "On mandatory requirements regarding certain types of products and related to these requirements processes of design (including surveying), production, construction, installation, commissioning, operation, storage, transportation, sale and disposal contained in technical regulations of the Republic of Kazakhstan,"