There are two types of enamels. 1. Oil Based 2. Water Based
Oil based enamels produce hard, durable and glossy layer. However, oil based paints take longer time to dry. While water based enamels dry quicker, they produce less glossy finish than traditional oil based ones.
Polyurethane (PU) coatings are enamels for wooden surfaces. They, like regular enamels impart hard and glossy finish on wood, thus enhancing beauty and life of wooden surfaces. PU coatings are mostly oil based, however water based PU finishes are available.
Enamel can provide easy to maintain, washable surfaces, when used on walls. But due to their very high gloss, paint brush or roller marks may become visible. It is hence advisable to use enamels, on smaller area on walls.