Cobalt Drier is a concentrated metal carboxylate in mineral spirits, containing 6% cobalt, and is an active, primary surface drier.
Cobalt is a primary oxidizing drier. Used alone and in thick applications of paint it has a tendency to cause wrinkling. Cobalt is generally used in combination with lead, zirconium, calcium or combination of these metals as a drying initiator.
Typically, 0.01% to 0.2% of cobalt metal is added to oil and alkyd paint based on the weight of the binder.
Add one drop per 10 ml (about 2 teaspoons) of paint. Suggested use levels should be verified with tests.
Dark blue-violet liquid
Cobalt Content (% weight):
Non Volatile Content (% weight):
Specific Gravity (@25° C., kg/L):
Viscosity (@25° C., Gardner):
Health and Safety
WARNING! CONTAINS: PETROLEUM DISTILLATES. Exposure may cause skin and eye irritation. Overexposure will cause dizziness, drowsiness, headache, nausea and cracking or drying of skin. Avoid contact with skin. Avoid breathing mist or vapor. Wear safety glasses, protective clothing and chemical resistant rubber gloves when handling. Wash thoroughly after handling. Do not take internally. Eye Contact: Flush eyes at once with large amounts of water for at least 15 minutes, while holding lids open. Get medical attention. Skin Contact: Wash thoroughly with soap and water. Wash clothes and shoes before reuse. If irritation persists, get medical attention. Inhalation: Remove to fresh air. Ingestion: Seek medical attention.
Appearance: Dark blue-violet liquid Color (Gardner): Blue-Violet Viscosity: A1
Natural Pigments is a limited liability company based in Willits, California. We manufacture and distribute rare and hard-to-find materials for fine artists and decorators. We specialize in supplying artists' materials that were used in historical painting since pre-historic times up to and including the nineteenth century.
We constantly search for materials and products of the finest quality so that we can bring them direct to you from the source. To do so, we travel the world to find materials specifically for use by professional artists and decorators. We obtain minerals from mines in Afghanistan, Chile, Russia, Ukraine and Uzbekistan, to name a few places, processing these into natural pigments. We purchase resins, gums and plants from India, Kenya and Malaysia to make natural varnishes and painting mediums.
Our mission is to provide the largest variety of natural pigments, paints and other professional artists' supplies, enabling us to bring you a selection that makes shopping for rare and hard-to-find art materials easy. Our objective is to promote the education and use of these materials among artists by providing detailed information for their employment in encaustic, fresco, oil, watercolor and tempera painting.
All Natural Pigments products
This product is shipped from our warehouse in Gretna, NE, USA.
This product is brand new and includes the manufacturer's warranty, so you can buy with confidence.
Please submit your product question using this form. All fields are required.