input: [Foundry Process] No-Bake Molding [Process] Chemical binders (furan or urethane) are mixed with sand and placed in mold boxes surrounding the pattern halves. At room temperature, the molds become rigid with the help of catalysts. The pattern halves are removed and the mold is assembled with or without cores. [Pros / Cons] 
output: Advantages Most ferrous / non-ferrous metals can be used. Adaptable to large or small quantities High strength mold Better as-cast surfaces. Improved dimensional repeatability Less skill and labor required then in conventional sand molding. Better dimensional control. Disadvantages Sand temperatures critical. Patterns require additional maintenance.