Home Trusted by 500,000+ buyers

Casting Sand - Sand Cast

Supplier: Ariel Industries

Casting Sand - Sand Cast, Foundry resins are the binders used with foundry sand to make moulds and mould cores.

Price Guide: POA

Casting Sand - Sand Cast

Binding Foundry Sand

Isocyanate-cured foundry resins
MDI is used in the 'cold process, which produces accurate sand castings without heating, saving energy, time & capital compared to the urea-formaldehyde & phenol-formaldehyde resins. In the 'cold process', a phenolic resin and Polymeric MDI are mixed with sand. The mixture is poured into a mould in an enclosed box. A rapid-curing reaction is then initiated by the introduction of a volatile amine catalyst carried in a stream of air or carbon dioxide. The ratio of binder to sand is 1-2% by weight.