(hint #1) Being able to play whatever I want has been a central theme to my own discovering how to play guitar. I've been on that path for 37 years, and it's enabled me to uncover, test and refine a unique, skill generating learning approach.
It is important to note that urethane foam is most commonly used to refer to a material made from polyurethane. The urethane reference in this name is to the type of links, also known as carbamates, that join the units in polyurethane.
Spar Varnish. Spar varnish is made with a base of natural oil such as tung, linseed or soya. The oil is combined with resins, solvents, UV protector and driers to create a shiny surface.Spar varnish protects the wood from water, heat, stain and solvent discoloration.par urethane is a synthetic product made either as a water-based or oil-based product. Water-based spar urethane has easy cleanup, less fumes and dries in a short time period. Oil-based spar urethane requires several hours between coats. A thin application is required to prevent drips.