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.
112140 Honey (Contractor/Builder Grade). Urethane Parquet-Wood Backing is a style of Hartco Hardwood that is durable and easy to maintain. Urethane Parque comes in a 5/16 thick by 12 square and has HartGuard No-Wax Urethane Finish.This style is also available with a foam back that provides insulation, acts as a moisture barrier, deadens sound and adds comfort underfoot.Click Shades Below For Larger View.rethane Parque comes in a 5/16 thick by 12 square and has HartGuard No-Wax Urethane Finish. This style is also available with a foam back that provides insulation, acts as a moisture barrier, deadens sound and adds comfort underfoot. Click Shades Below For Larger View.