VSW 500 Opaque White Litho Base
VSW 500 Opaque White is a dispersion of 75% rutile titanium dioxide in a stable, oil-modified polyester alkyd vehicle. VSW 500 Opaque White is designed to be used in a wide variety of paste inks such as business forms and quickset inks. Additionally, VSW 500 can be used as a dispersion in offset bake-on metal decorating inks for base white coatings for beverage cans. Additionally, VSW 500 can be used as a bleaching white for testing ink strengths.
Typical applications call for using between 40% and 60% of VSW 500 Opaque White to make an offset ink. VSW 500 cures very well to a hard, flexible film with the addition of metal driers such as cobalt, zirconium, or cerium.
Care should be used in storage and disposal of rags used to clean VSW 500 from surfaces, as spontaneous combustion can possibly occur, due to the mild catalytic action of titanium dioxide.
Chemical Resistance: 5% HCl: Excellent 5% NaOH: Excellent
Water: Excellent Ethanol: Excellent Hot Paraffin: Excellent Soap: Excellent Lacquer Solvents: Excellent Linseed Oil: Excellent Diethylene Glycol: Excellent Mineral Spirits: Excellent
Lightfastness: Full Strength: Excellent Tint: Excellent
Pigment type: Rutile Titanium Dioxide / White 6
Color Index No: 77891
Pigment Content: 75-77%
Solids Content: 100%
Solvent Boiling Range: N/A
Vehicle type: Long oil linseed alkyd
Appearance: Soft, freeflowing white paste