Green foundry sand molds are the most used in foundries due to their versatility and greater economic efficiency. These molds need to be stable enough to maintain the shape of the part during the pouring of the molten metal and allow easy demolding once the part has cooled. Our bentonites guarantee the proper behavior of the mold during the different phases of the production of the part.
Silmin Ibérica proposes a high purity sodium bentonite that provides excellent characteristics to recycled sand in green molding systems, providing cohesion and plasticity to the mixture, meeting the demands and requirements of the most modern molding systems, obtaining high resistance to Compression in Green.
The range of Bentonites that Silmin Ibérica represents, distributes and markets is very stable at high temperatures, being used in steel casting, ductile iron, and in the range of non-ferrous metals, providing excellent Molding Characteristics:
Excellent Per Unit Green Compressive Strength of our added bentonite when used in synthetic green sand systems.
Exceptional in terms of agglomeration speed.
High fluidity in the sand through compactibility control.
Our wide range of Bentonites is based on very defined criteria depending on the final application of the product.
Bentonite for ferrous foundry
It is the most abundant and varied in size and shape of castings, so the stability of the sand provided by our additives is essential for optimizing production.
Bentonite designed to agglomerate and ensure the stability of sand molds where high thermal and binder stability is required. Especially suitable for steel casting and complex geometries.
Specific bentonite to agglomerate and ensure the stability of sand molds for a wide range of metals and shapes.
Bentonites with additives that agglomerate and ensure the stability of sand molds in which notable thermal and agglomerant stability is required. Especially suitable for steel casting and complex geometries.
Bentonite for non-ferrous foundry
It is usually more specialized than ferrous and therefore has greater technical requirements for the molds. Again, high thermal stability is crucial to the performance of the application.
Bentonite designed to agglomerate and ensure the stability of sand molds in which very high thermal stability as well as high refractoriness is required. Especially suitable for non-ferrous cast iron and refractory masses.
Bentonites with additives designed to agglomerate and ensure the stability of sand molds in which high thermal and binder stability is required. Especially indicated for complex geometries.
Applications
Very effective when high Green Compression Strength is required.
Applicable with all types of grinding equipment, where mixing times can often be reduced.
Highly recommended for the production of all grades of ferrous cast iron that use the sand casting system.
Dosage
The dosage of our bentonites varies depending on the technical requirements of the mold. The dosage ranges between 5% and 9%.
Presentation of the product
Color: light cream
Appearance: powder
Presentation: Available in 25 kg paper bags, Big Bags or bulk
Storage: Dry place protected from humidity
Silmin Ibérica ensures the logistical supply for the entire range of bentonites for the industry.
To request a technical sheet or more information about our products,
Contact us.
Menu
