(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.
Urethane vs. Rubber. If youâre looking for superior abrasion, cut, and tear resistance, look beyond rubber to urethane. Urethane also boasts higher load-bearing capacity, better compression set, and superior tolerance to greases, oils, oxygen, and ozone. Because rubber is biodegradable, it tends to rot and degrade over time with exposure to the elements. But, man-made urethane can be easily formulated to outlast rubber and stand up to sunlight and outdoor environments. Additionally, most cast urethanes are available in grades that range from clear, to opaque, to amber. That means they can be mixed with a variety of dyes and pigments making it easy to color code parts.