DB™ Refined Castor Oil

DB™ Castor Oil is a premium grade of castor oil developed for uses where a low acidity and extremely low moisture content are critical.  DB Castor Oil is an ideal product in such applications as sonar fluid, liquid dielectrics, and urethane reactions.


  • Lowest available moisture content
  • Clear, viscous, light color
  • Non-drying and stable
  • Lubricity and plasticization
  • Penetration and surface wetting
  • Pigment and dye dispersions
  • Base compound for reactions
  • Hydrophobic


Medical & Industrial Filtration Adhesives

DB Oil is a natural polyol that is FDA compliant. DB Oil has superior flow properties for filtration assembly.

Military Applications for Sonar Assemblies

DB Oil is specified for use in military and industrial sonar transducer applications. The properties of DB Oil allow sonar signals to pass through without interruption.

Urethanes, Sealants, & Caulks

Use of DB Oil is for critical urethane applications where moisture is a concern. Examples include electronics, high-performance coatings.


Vertellus supplies a variety of castor oil grades the uses of which are dictated by acid value, moisture level, color, and purity.  Castor oil is a triglyceride of fatty acids, with the fatty acid content being approximately 90% ricinoleic acid.  Ricinoleic acid is an 18-carbon acid having a double bond in the 9-10 position and a hydroxyl group on the 12th carbon.  Its remarkably constant composition, hydroxyl functionality and unsaturation, make it uniquely versatile as a naturally occurring compound.

While castor oil is available from several sources, regardless of origin, the chemical nature and composition are remarkably uniform. 

Typical Properties

Color (Gardner)
Acid Value
Hydroxyl Value
Saponification Value
Iodine Value
Viscosity (Stokes @25°C)
Specific Gravity
% Moisture
Refractive Index

Values shown in the above table are typical properties

Application Highlights

Medical & Industrial Filters

Natural raw material for medical & industrial filter adhesives

Sonar Buoy

Fluid medium for military & industrial sonar transducers


Key natural raw material
where low moisture content
and low acidity is critical

Additional Resources

Available upon request. Please use the Contact Us form. 

Available upon request. Please use the Contact Us form. 

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