Rapid Prototyping involved creating a working model of various parts of the system at a very early stage, after a relatively short investigation. The method used in building it is usually quite informal, the most important factor being the speed with which the model is provided.
There are water-and solvent-based -- also called oil-based -- polyurethane varnishes. Water-based polyurethanes are more environmentally friendly and safer to use than solvent-based, but they are not as resistant to wear and tear as solvent-based products.
Hydrocarbon solvents. Dr. Dmitri Kopeliovich. Hydrocarbon solvents are organic solvents, molecules of which consist only of Hydrogen and carbon atoms. Hydrocarbon solvents are produced in form of volatile fractions in refinery of crude oil.Resulting hydrocarbon solvents contain paraffinic, natphthenic and aromatic constituents in various proportion.ydrocarbon solvents. Dr. Dmitri Kopeliovich. Hydrocarbon solvents are organic solvents, molecules of which consist only of Hydrogen and carbon atoms. Hydrocarbon solvents are produced in form of volatile fractions in refinery of crude oil.