As water pressure changes, the volume of air in a bladder. pressure tank contracts and expands. Periodically, the amount. of air in the tank should be measured and the tank recharged if. the air is too low. Bladder pressure tanks do not provide any. useful water storage capacity.
Add Image. Exotic Materials are the strange and unusual elements produced by science, nature, or some strange alien force. Such materials could be alloys, isotopes, chemicals, and such.
Plastic and Bakelite are both organic polymers, having a very large molecular weight though there exists a difference between the two based on their properties and usage. Bakelite is the first synthetic plastic and is known as a âmaterial of thousand usesâ due to its versatile applications. There are so many varieties of plastic materials with unique properties and applications. In the modern society, plastic materials replace traditional materials such as wood, glass, ceramics.