Methylethylketoxime (MEKO)
Color index: MEKO
Field of application :
- - paint-additives
TECHNICAL SPECIFICATIONS
| Properties | Values | |
|---|---|---|
| CAS Number | 96-29-7 | |
| Chemical Formula | CH₃C(NOH)C₂H₅ | |
| Appearance | Colourless transparent liquid | |
| Specific Gravity | 0.92 g/ml (H₂O = 1.0) | |
| Solubility in Water | Slightly soluble | |
| Boiling Point | 152ºC (306ºF) at 1,013 hPa | |
| Melting Point | -29.5ºC (-21.1ºF) | |
| Vapor Pressure | 2.66 hPa at 20ºC (68ºF) | |
| Density | 0.92 g/cm³ at 20ºC (68ºF) | |
| pH | 7.0 – 8.5 at 20ºC (68ºF) | |
| Flash Point | 63ºC (145ºF) | |
| Active Substance Content | >99% | |
| Color (APHA) | 10 max | |
Methyl Ethyl Ketoxime (MEKO) is a highly effective anti-skinning agent widely used in the production of alkyd-based paints and coatings. Its primary function is to prevent the formation of a skin on the surface of paint during storage, which is crucial for maintaining product performance and extending shelf life.
Benefits of Using MEKO:
- Effectively inhibits skin formation in paints and varnishes
- Ensures formulation stability during long-term storage
- Compatible with most alkyd systems
- Easily evaporates during application and drying
Applications:
- Alkyd paints and enamels
- Varnishes and primers
- Stains and solvent-based decorative coatings
Usage Recommendations:
The typical dosage of MEKO is 0.1–0.3% by total weight of the formulation, depending on the specific paint recipe. It is usually added during the final mixing stage or during packaging.
Packaging and Storage:
Supplied in 180 kg steel drums. Store in a cool, well-ventilated area, away from sources of ignition and direct sunlight.
