Liquid Crystal is the raw material found in mood rings and LCD screens. The material changes multiple colors based on reaction to heat. For best results the ink must be applied over a black background, otherwise you will not see the color change as well. Mayhems has heavily invested in R&D Nano Particles and manufacturing processes to help aid in liquid cooling and SFX technology industry. Our ever expanding repertoire of in house manufactured products is growing daily and influencing many companies in the cooling world, where we lead others follow. Liquid crystal color transitions are used on many aquarium and pool thermometers as well as on thermometers for infants or baths. Other liquid crystal materials change color when stretched or stressed. Thus, liquid crystal sheets are often used in industry to look for hot spots, map heat flow, measure stress distribution patterns, and so on.