12% Cobalt Cem-All® by Borchers (Milliken) is a cobalt-based drier. It is suitable for oxidatively cured solvent-based systems. It reduces the surface drying time of coatings, varnishes, stains, and inks.
- It promotes rapid surface drying by catalyzing redox reactions that decompose hydroperoxides through the conversion of Co²⁺ to Co³⁺.
- It promotes uniform through-drying of the paint film when used in combination with secondary driers such as zirconium, barium, or zinc.
- 12% Cobalt Cem-All® is recommended for architectural paints, industrial coatings, stains, artists’ colors and oil-based inks.
- The recommended dosage level is 0.03–0.08% metal based on vehicle solids of the coating, and 0.03–0.05% based on binder solids.
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12% Cobalt Cem-All® properties
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| Properties | Value & unit | Test condition | Test method |
|---|---|---|---|
| Cobalt Content | 0.0 Visible After Login | Visible After Login | Visible After Login |
| Density | 0.0 Visible After Login | Visible After Login | Visible After Login |
| Non-volatile Content | 0.0 Visible After Login | Visible After Login | Visible After Login |
| Viscosity, Gardner | 0.0 Visible After Login | Visible After Login | Visible After Login |