Blown Castor Oil (BCO) is a high-viscosity, oxidized castor oil derivative valued for its tackiness, film strength, lubricity, and adhesion properties. Its versatility makes it an essential raw material across inks, coatings, adhesives, lubricants, textiles, rubber, and specialty chemical formulations.
It is produced by passing air through refined castor oil under controlled temperature conditions. This oxidation process increases viscosity and molecular weight, resulting in improved body, tack, film strength, and adhesion. Blown Castor Oil is widely used where higher viscosity and enhanced performance are required.
Key Applications
Blown Castor Oil is widely used in:
Textile & Leather Chemicals – Helps in softening and finishing formulations
Paints & Coatings – Improves gloss, flow, leveling, and pigment dispersion
Printing Inks – Acts as a binder and viscosity modifier
Lubricants & Greases – Enhances lubricity and thickening characteristics
Adhesives & Sealants – Provides tackiness and flexibility
Rubber & Plastic Processing – Used as a plasticizer and processing aid
Product Specifications
| Characteristics | Typical Specifications |
| Appearance | Pale yellow to amber, viscous liquid |
| Color, Gardner | 10 G Maximum |
| Odor | Mild, characteristic |
| Acid Value (mg KOH/g) | 20 – 27 (as per grade) |
| Iodine Value (g I₂/100 g) | 60 – 75 (as per grade) |
| Hydroxyl Value (mg KOH/g) | 140 – 160 (as per grade) |
| Saponification value (mg KOH/gm) | 200-235 (as per grade) |
| Viscosity @ 25°C | 45-90 (as per grade) |
| Moisture (%) | Max 0.25 |
Note: Specifications may vary slightly depending on degree of blowing and customer requirements.
Packaging & Storage
We offer flexible packing solutions to meet diverse logistics and volume requirements:
ISO Tanks / Flexi Tanks : 20 – 22 MT
HDPE Drums : 200 kg (Palletised / Unpalletised)
IBC Totes : 900-1,000 kg (Palletised)
Packaging can be customized based on customer specifications. Export consignments are packed in export worthy containers. Proper labeling, sealing, and palletization ensure safe transit and storage.
Shelf life: 12 months under recommended storage conditions (10–30 °C).
Store in a sealed containers in a cool, dry place away from direct sunlight