http://www.gharexpert.com/category/1358/Synthetic-Enamel-Paint-0.aspx?CatID=1358Synthetic Enamel Paint information at GharExpert.com. The gaps or cracks where some sort of movement is expected should be filled by a flexible sealant not with P.O.P.( Plaster of Paris) or putty. http://www.gharexpert.comhttp://www.gharexpert.com/articles/Paint-1638/Tips-Synthetic-Enamel-Paint_0.aspx?PL=2&ArticleID=1666&CatID=1358Synthetic enamel paint is an oil based paint which is applied to provide better griping and long lasting finish. It is done on inner surfaces with brush or spray.