(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.
EstaneÂ® TPU (Thermoplastic Polyurethane) The EstaneÂ® TPU (thermoplastic polyurethane) product line consists of polyester, polyether and specialty adhesive compounds. The Estane TPU portfolio bridges the gap between flexible rubber and rigid plastics. EstaneÂ® S TPU. Formerly known as Skythane TPU.