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These non-drying castor polymers, commonly known as blown oils, have increasing viscosities resulting from oxidative and cross-link polymerization at the double bonds and hydroxyl groups.

Oxidative polymerization of castor oil at the double bond yields products with increased viscosities and decreasing solubility in aliphatic solvents, increasing compatibility with various resins and improved ability to wet and disperse pigments. The polymerized castor oils are permanent plasticizers for nitrocellulose lacquers to which they contribute adhesion, elasticity, high gloss and solvent resistance. The polymerized oils are used to plasticize a variety of resins in adhesive and sealant systems, inks and hot melts. The heavier viscosity polymerized oils are processing aids and plasticizers for rubber polymers, imparting oil and solvent resistance.

The Vorite® oils have been polymerized by a unique process, which imparts excellent thermal and viscosity stability. Their applications are essentially the same as for the other polymerized oils.

Pale® 170, Pale® 4 are lightly polymerized oils of outstanding pale color and outstanding plasticizing action. Recommended for inks, lacquers for cloth, paper and water-white wood lacquers where they will impart good sanding, rubbing and plating characteristics.

Pale® 1000, Pale® 16, #15 Oil are medium viscosity, all-purpose plasticizers for cellulosic lacquers, inks and strippable coatings. They have excellent compatibility and film forming properties while imparting toughness, abrasion resistance and high gloss. These products are excellent for grinding media and dispersing color. They will impart oil and solvent resistance to plug-valve lubricants, caulks and sealants, and adhesiveness to tack rages and belt dressings.

#30 Oil, #40 Oil are high viscosity polymers that impart extreme toughness, and solvent and abrasion resistance characteristics to lacquers. They are also good tackifiers for gasket cements and adhesives, and liquid plasticizer milling aids for rubber compounding.

Vorite® 105, Vorite® 110, Vorite® 115, Vorite® 125 are polymeric plasticizers for cellulosics and elastomers in adhesives, sealants, gasket cements and belt dressings. They aid in plasticizing the reactants (polyol) for flexible urethane foams and elastomers. Other uses include lacquers, marking inks and plug-valve lubricants.