Mineral solutions for metal casting & moulding
Sree Sai Mineral Industries supplies bonding-grade kaolin clay used in green sand moulding and core-making across iron, steel and non-ferrous metal casting foundries.
Our kaolin grades deliver the mould strength, thermal stability, and clean collapsibility that foundries need for consistent casting quality, backed by an in-house quality laboratory and a Certificate of Analysis with every batch.
Where our kaolin is used
Green Sand Moulding
- Iron Casting Moulds
- Steel Casting Moulds
- Non-Ferrous Casting Moulds
- Automated Moulding Lines
Core-Making Binders
- Sand Core Binder Systems
- Complex Internal Cavities
- Improved Core Strength
- Precision Foundry Applications
Mould Wash & Refractory Coatings
- Refractory Coating Formulations
- Metal Penetration Prevention
- Improved Surface Finish
- Ladle & Pattern Coatings
The role our kaolin plays in your moulding process
Thermal Stability
Withstands the high heat of molten metal without breaking down.
Mould Strength & Bonding
Binds sand grains for dimensionally accurate, durable moulds and cores.
Clean Collapsibility
Breaks down cleanly after casting for easy shakeout and part removal.
Consistent Grain & Quality
Uniform particle size verified batch-wise in our in-house QC lab.
Sree Sai FoundryBond Kaolin
Sree Sai FoundryBond is a bonding-grade kaolin developed for green sand moulding and core-making. It delivers reliable mould strength, thermal stability and controlled collapsibility for consistent casting quality across iron, steel and non-ferrous applications.
Chemical Composition (Typical)
| Parameter | Typical Value |
|---|---|
| Silicon Dioxide (SiO₂) | 46–48% |
| Aluminium Oxide (Al₂O₃) | 37–40% |
| Iron Oxide (Fe₂O₃) | ≤ 0.60% |
| Titanium Dioxide (TiO₂) | ≤ 0.80% |
| Loss on Ignition (LOI) | 13–15% |
Physical Properties (Typical)
| Property | Typical Value |
|---|---|
| Refractoriness | Good to High |
| Moisture | < 1.2% |
| +325 Mesh Residue | < 1.0% |
| Median Particle Size (D50) | 5–8 µm |
| Green Compression Strength | High |
Product Advantages
Five grades — from green sand moulds to precision casting
| Product Grade | Al₂O₃ (%) | Fe₂O₃ (%) | D50 (µm) | Refractoriness | Primary Application |
|---|---|---|---|---|---|
| SS-FD 100 | 37–38 | ≤ 0.80 | 8.0 | Good | Green Sand Moulding |
| SS-FD 200 | 38–39 | ≤ 0.65 | 7.0 | Good to High | Core-Making Binders |
| SS-FD 300 | 38–40 | ≤ 0.55 | 6.0 | High | Mould Wash & Refractory Coatings |
| SS-FD 400 | 39–40 | ≤ 0.45 | 5.0 | High | Steel & Iron Casting |
| SS-FD 500 | 40–41 | ≤ 0.35 | 4.0 | Very High | Precision & Non-Ferrous Casting |
* Typical values provided for guidance only. Custom grades can be developed to meet specific process and product requirements.
