Bond development
Assess green compression strength and wet tensile behaviour in the customer’s sand mix.
Applications / Foundry
Bentonite for green sand moulding
Bonding that begins with the sand system.
Discuss your requirements →
The role of bentonite
Bonding that begins with the sand system.
In green sand foundries, bentonite acts as the clay binder that helps hold sand grains together. With water and mixing, the clay develops the bonding behaviour needed to form and retain a mould.
Where it fits
Application areas
- Green sand moulding for iron and other metal castings
- Fresh sand additions and sand-system replenishment
- Application trials in existing moulding systems
Application-led development
What we consider
System balance
Consider moisture, compactability, active clay and sand preparation together.
Process conditions
Review mixing time, return sand condition and casting requirements before selecting a grade.
Start a technical discussion
Help us understand
your requirement.
Share the details below so we can discuss suitable development targets, sample needs and a trial plan.
Prepare a Foundry enquiry →- Sand type and return-sand condition
- Current bentonite dosage and mixing practice
- Required strength, compactability and moisture range
- Casting type, process concerns and monthly consumption
Product grades are under development. Specifications and suitability must be confirmed through laboratory validation and customer trials. No certification or project compliance is implied.
Illustrative application photograph; not a Puremont facility or project. Image source: FeX Foundry Alloys.