Since 1970
Since 1970
Premium-grade Methyl Ethyl Ketone Oxime (MEK Oxime / MEKO) engineered as a highly efficient, volatile anti-skinning agent for alkyd-based paints, varnishes, printing inks, and oil-based industrial coatings.
Chemical Name: Methyl Ethyl Ketone Oxime (MEKO)
Primary Function: Prevention of surface skinning during storage in the container
Key Properties: 100% active fluid, high volatility, rapid evaporation post-application, and zero discoloration
Standard Packaging: 25kg plastic drums / 200kg steel drums / 1,000kg IBC totes
MEK Oxime (Methyl Ethyl Ketone Oxime) is an organic compound widely utilized in the coatings industry as a high-performance anti-skinning agent. It works by forming a volatile complex with the metal driers (such as cobalt or manganese catalysts) present in air-drying formulations. This temporarily blocks the cross-linking reaction with ambient oxygen inside the closed container. Once the coating is applied to a surface, the MEK Oxime rapidly evaporates alongside the primary solvents, releasing the metal driers to allow standard, uniform curing of the resin film throughout its entire depth.
Highly Effective In-Can Protection: Prevents the formation of tough, un-dissolvable surface skins during storage and transport, minimizing product waste and filtration issues for end-users.
No Curing Retardation: Due to its optimized volatility profile, it leaves the wet film quickly after application, ensuring that standard dry times, hardness development, and gloss properties are completely unaffected.
Excellent System Clarity: Completely soluble in standard coating solvents and resins; does not cause yellowing, hazing, or loss of adhesion in clear varnishes or white architectural enamels.
Alkyd Coatings & Enamels: The industry standard for air-drying architectural paints, machinery enamels, and heavy-duty protective alkyd coatings.
Oil-Based Varnishes & Wood Stains: Protects clear wood finishes and penetrating stains from oxidizing prematurely inside consumer tins.
Printing Inks: Prevents drying and skin formation on the surface of offset, lithographic, and oil-based letterpress printing inks during press stops or storage.
Silicone Sealants: Serves as a crucial cross-linker raw material in the manufacturing of neutral-curing (oxime-type) silicone caulks and sealants.
| Property / Parameter | Standard Industrial Value |
| Chemical Formula | C₄H₉NO |
| Purity (%) | ≥ 99.5 |
| Appearance | Clear, colorless to pale yellow liquid |
| Moisture Content (%) | ≤ 0.10 |
| Free MEK Content (%) | ≤ 0.20 |
| Density (at 20°C, g/cm³) | 0.922 – 0.925 |
| Boiling Point (°C) | Approx. 152°C |
Store in a cool, dry, and well-ventilated warehouse space away from direct sunlight, heat sources, and strong oxidizing agents or acids. Keep containers tightly closed when not in use, as exposure to air can cause premature evaporation or degradation. MEK Oxime is a combustible liquid and should be handled with standard industrial safety precautions, including proper personal protective equipment (PPE). Material Safety Data Sheets (MSDS) and batch-specific Certificates of Analysis (COA) are provided with every delivery.