Foundry Grade Bentonite is a specialized type of bentonite clay tailored specifically for use in foundry applications. It is primarily utilized as a binder in molding sand to improve sand mold strength and surface finish in metal casting processes. This bentonite possesses high swelling capacity, excellent colloidal properties, and superior binding characteristics that ensure optimal mold integrity, reducing defects and enhancing the quality of castings. Suitable for both ferrous and non-ferrous metal casting, this grade of bentonite helps achieve higher mold strength, better sand cohesion, and improved permeability. Its consistent mineral composition and low impurities make it ideal for foundries aiming to enhance production efficiency and casting precision. The product is widely used in core making, molding processes, and as a crucial additive to maintain the dimensional stability of molds during metal pouring.
Key Features
| Features | Description |
|---|---|
| Grade Type | Foundry Grade |
| Primary Use | Binder in molding sand for metal casting |
| Swelling Capacity | High swelling capacity ensuring mold strength |
| Purity Level | Low impurities for consistent mold quality |
| Thermal Stability | Stable at high temperatures encountered during casting |
| Metal Compatibility | Suitable for ferrous and non-ferrous castings |
| Particle Size | Fine clay particles for uniform mixing |
| Binding Efficiency | Improves sand cohesion and mold integrity |
| Impact on Casting | Reduces casting defects and surface imperfections |
| Attributes | Description |
|---|---|
| Chemical Composition | Primarily montmorillonite clay mineral |
| Moisture Content | Typically 8-12% |
| pH Value | Neutral to slightly alkaline (around 7-9) |
| Color | Grayish to light brown |
| Bulk Density | Approx. 0.7 to 1.0 g/cm³ |
| Swelling Index | Above 10 ml/2g (as per IS standards) |
| Loss on Ignition | Less than 10% |
| Usage Temperature Range | Up to 1200°C |
| Packaging | 25 kg bags or customized bulk packaging |
| Storage Conditions | Store in a cool, dry place away from moisture |
*Disclaimer: The above description has been AI-generated and has not been audited or verified for accuracy. It is recommended to verify product details independently before making any purchasing decisions.
Foundry Grade Bentonite has high swelling capacity and excellent binding properties that ensure strong and stable molding sand structures, which are essential to producing defect-free metal castings.
Yes, this Foundry Grade Bentonite is compatible with both ferrous and non-ferrous metal casting processes, maintaining mold stability under high temperatures.
The product is typically available in 25 kg bags, with options for customized bulk packaging to meet industrial requirements.
It enhances sand cohesion and mold strength, reducing common casting defects such as surface imperfections, blowholes, and cracks.
It should be stored in a cool, dry place protected from moisture to preserve its binding properties and prevent degradation.
