The April issue of Fundição e Serviços is online. A preview of “Expomafe - Brazil International Machine Tool Exhibition”, which will take place from May 9th to 13th in São Paulo, is highlighted on page 24. This debut event will present novelties in products, solutions and accessories both from Brazilian and foreign manufacturers, in an inspiring business atmosphere fostering interaction between suppliers and customers. See on page 14 the article “A new sand additive to control veining and eliminate the need for refractory coatings", which describes the development of a sand additive that eliminates the need for use of refractory paints, providing a melt with excellent surface finish. Read on page 34 the article “Influence of the overmetal on the circularity of holes after the enlargement of the vermicular FoFo", presenting the results of tests on the influence of the supermetal in the error of cylindricity of holes produced in vermicular cast iron. This issue also introduces the updated “Ceramic filters”, “Releasing agents” and “Heat-treatment furnaces” buyers’ guide.