... for over two decades and is also known as Hard Enamel Cloisonné, Epola, New Cloisonné, Clois-Tech, ... Semi-Cloisonné. They all mean the same thing.Hard enamel lapel pins are considered the high-end of ... cannot blend together or fade into another color - hard enamel is a good choice for any design that ... of your company logo, or durability is important hard enamel would be your choice. All trademarks are ...