Alcohol Based Graphite Coatings
Spirit-based, high-conductivity refractory graphite coatings engineered for instant ignition drying, superior surface lubricity, and clean peel-off in Grey Cast Iron (CI), Ductile / SG Iron, and non-ferrous foundry operations.
Spirit-Based High-Lubricity Coating for Iron & Non-Ferrous Castings
Alcohol-based (Spirit-based) Graphite coatings are specially developed refractory washes formulated using high-purity crystalline flake graphite suspended in an industrial alcohol / spirit carrier. Formulated for fast-cycling foundries producing Grey Iron, Spheroidal Graphite (SG / Ductile) Iron, and non-ferrous alloys, these coatings offer high thermal conductivity and rapid film consolidation upon flame ignition.
The natural laminar structure of graphite creates an effective non-wetting carbonaceous shield that liquid iron cannot wet or penetrate. During pouring, the coating provides exceptional heat dissipation, preventing local hot spots, sand burn-on, and thermal expansion defects. Upon solidification, the low surface energy of the carbon layer ensures immediate, clean separation between casting and mould media, drastically lowering shot-blasting, grinding, and fettling expenses.
At BR Chemicals, our spirit graphite coatings are produced with advanced suspension stabilizers to prevent hard cake settling, ensuring dependable suspension recovery, zero foaming, and consistent coating thickness across dipping, brushing, and spraying applications.
Engineered for Rapid Turnaround & Defect-Free Iron Castings
A proven spirit graphite formulation trusted across Indian iron and non-ferrous foundries to lower energy overheads and eliminate sand burn-on.
Rapid Ignition Drying
Dries instantly upon flame lighting with zero oven heating, saving massive fuel and electrical energy on the foundry floor.
Superior Thermal Conductivity
High thermal dissipation rate promotes uniform cooling and suppresses thermal cracking and veining on complex internal cores.
Anti-Stick Carbon Shield
Forms a non-wetting carbon barrier that molten iron and non-ferrous metals cannot penetrate, eliminating metal penetration and burn-on.
Effortless Shakeout
Graphite lubricity facilitates effortless sand release at knockout, leaving clean cast surfaces and reducing fettling labor.
Foundry Applications
- ✓ Grey Cast Iron (CI) castings, machine tool beds, and engine blocks
- ✓ Ductile / SG (Spheroidal Graphite) iron moulds and internal core assemblies
- ✓ Non-ferrous castings including copper, bronze, and brass foundry components
- ✓ Cold Box (PUCB), Furan No-Bake, and Phenolic resin bonded sand cores
- ✓ Sodium Silicate / CO2 sand systems where oven baking is unavailable
- ✓ Application by brushing, swabbing, dipping, flow-coating, or air spraying
Specialized Alcohol Graphite Coating Grades
Ready-to-Use Spirit Graphite
Pre-formulated liquid graphite suspension optimized for direct dipping, brushing, and spraying without needing shop dilution.
Baumé: 8 – 12° Bé
Viscosity: 15 – 20 sec (B4 Cup)
Form: Ready-to-Use Liquid
High Solids Concentrated Paste
High-solids black paste formulated for high packaging density and customized dilution on-site with foundry thinner.
Solid Content: 40% – 45% (Pre-mix)
Viscosity (Diluted): 14 – 19 sec (B4 Cup)
Form: Thixotropic Paste
Dry Powder Pre-Mix
Economical dry powder formulation designed to be blended on-site with industrial alcohol or thinner to exact shop Baumé.
Baumé (Diluted): 18 – 23° Bé
Viscosity (Diluted): 15 – 20 sec (B4 Cup)
Eco & Freight: Low freight costs
Technical Specifications
| Property / Parameter | Specification / Typical Value |
|---|---|
| Refractory Filler | High Purity Crystalline Flake Graphite |
| Carrier Medium | Industrial Alcohol (IPA / Denatured Spirit) |
| Visual Colour | Smooth Glossy Black |
| Physical State | Ready Mix Liquid / Concentrated Paste / Dry Powder |
| Active Solid Content | 40% – 52% (Ready Mix) | High Solid Paste & 100% Powder |
| Baumé Density (at 25°C) | 8° to 12° Bé (Ready Mix) | 18° to 23° Bé (Powder Diluted) |
| Viscosity (B4 Cup at 25°C) | 15 to 20 seconds (Ready Mix & Diluted Paste) |
| Dilution Medium / Thinner | BR Chemicals Special Foundry Thinner (IPA / Spirit base) |
| Paste Dilution Ratio | 100 g Paste + 55 to 60 g Foundry Thinner |
| Drying Method | Self-drying or Direct Torch / Flame Ignition |
| Standard Packaging | 25 kg & 50 kg Wide-Mouth HDPE Carboys / 25 kg Powder Bags |
| Shelf Life & Storage | 6 months in tightly sealed original containers. Store in cool, ventilated areas away from heat, open flames, and sparks. |
*Values vary according to the specific grade (AG-300-RM / AG-300-Paste / AG-300-P) and foundry dilution ratios. Contact our technical team for customized grade selection and TDS.
Upgrade Your Iron & Non-Ferrous Casting Quality
Connect with BR Chemicals foundry engineers to evaluate the optimal spirit graphite grade, Baumé control parameters, and test samples for your foundry floor. Formulations and technical datasheets provided within 24 hours.
