MEKO METHYL ETHYL KETOXIME

MEKO Methyl Ethyl Ketoxime is an oxime-based blocking agent widely used in coatings, sealants, and adhesives to prevent premature curing of isocyanates and alkyd systems.
MEKO Methyl Ethyl Ketoxime functions as an effective anti-skinning agent in alkyd paints, improving shelf stability and preventing surface film formation.
MEKO Methyl Ethyl Ketoxime is also used as a curing-blocking component in polyurethane prepolymers, enabling controlled curing during application.
MEKO Methyl Ethyl Ketoxime is valued for its volatility, compatibility, and efficiency in stabilizing moisture-sensitive formulations.

CAS Number: 96-29-7
EC Number: 202-496-6
Molecular Formula: C4H9NO
Molecular Weight: 87.12 g/mol

Synonyms: Methyl Ethyl Ketoxime, 2-Butanone Oxime, MEKO Oxime, MEKO Anti-Skinning Agent, Butanone Oxime, MEK Oxime, PU Blocking Agent, Alkyd Anti-Skin Agent, Isocyanate Blocking Oxime, Surface-Drying Inhibitor, MEKO Methyl Ethyl Ketoxime, MEKO, Methyl Ethyl Ketoxime, 2-Butanone Oxime, Butanone Oxime, Ethyl Methyl Ketoxime, Ethyl Methyl Ketone Oxime, MEK Oxime, Methyl Ethyl Ketone Oxime, Butan-2-one Oxime, Methylethyl Oxime, Oxime of Methyl Ethyl Ketone, Ethyl Methyl Oxime, MEKO Anti-Skinning Agent, Methyl Ethyl Ketoxime Anti-Skinning Agent, MEKO Anti-Skin Additive, MEKO Anti-Skinning Additive, Paint Anti-Skin Agent MEKO, Coating Anti-Skin Agent MEKO, Alkyd Paint Anti-Skin Agent, MEKO Drier Suppressant, MEKO Drier Inhibitor, MEKO Coating Stabilizer, Methyl Ethyl Ketoxime Coating Stabilizer, MEKO Paint Stabilizer, Methyl Ethyl Ketoxime Paint Additive, MEKO Sealant Additive, MEKO Silicone Additive, MEKO Adhesive Additive, MEKO Crosslinking Inhibitor, MEKO Curing Inhibitor, MEKO Blocking Agent, Methyl Ethyl Ketoxime Blocking Agent, MEKO Urethane Blocking Agent, MEKO Silicone Cure Modulator, MEKO Surface Film Preventer, MEKO Skin Preventer, MEKO Drying Retarder, MEKO Anti-Oxidation Additive, MEKO Polymer Stabilizer, Methyl Ethyl Ketoxime Polymer Stabilizer, MEKO Processing Additive, MEKO Chemical Grade, MEKO Technical Grade, MEKO Industrial Grade, MEKO High Purity, MEKO Extra Pure, MEKO Pure Grade, MEKO 99% Grade, MEKO Industrial Material, MEKO Chemical Ingredient, MEKO Specialty Chemical, MEKO Fine Chemical, MEKO Industrial Product, MEKO Technical Product, MEKO Reactive Additive, MEKO Protective Additive, MEKO Coating Ingredient, MEKO Alkyd Resin Additive, MEKO Sealant Stabilizer, MEKO Paint Film Preventer, MEKO Oxime, MEKO Functional Additive, Methyl Ethyl Ketoxime Raw Material, MEKO Processing Chemical, MEKO Industrial Additive, MEKO Stabilizing Agent

APPLICATIONS

MEKO Methyl Ethyl Ketoxime is used in alkyd paints as an anti-skin agent.
MEKO Methyl Ethyl Ketoxime prevents oxygen-induced surface curing in paint containers.
MEKO Methyl Ethyl Ketoxime increases storage stability of alkyd coatings.

MEKO Methyl Ethyl Ketoxime is used in polyurethane systems as a blocking agent.
MEKO Methyl Ethyl Ketoxime controls curing by temporarily deactivating isocyanate groups.
MEKO Methyl Ethyl Ketoxime enables one-component polyurethane formulations.

MEKO Methyl Ethyl Ketoxime is used in silicone sealants.
MEKO Methyl Ethyl Ketoxime acts as a neutral-cure releasing component in oxime-cure silicones.
MEKO Methyl Ethyl Ketoxime improves adhesion and elasticity in sealants.

MEKO Methyl Ethyl Ketoxime is used in adhesives requiring controlled reactivity.
MEKO Methyl Ethyl Ketoxime supports storage-stable adhesive formulations.
MEKO Methyl Ethyl Ketoxime improves application window before setting.

MEKO Methyl Ethyl Ketoxime is used in industrial coatings.
MEKO Methyl Ethyl Ketoxime improves drying profile and prevents surface film defects.
MEKO Methyl Ethyl Ketoxime enhances coating flow and leveling.

MEKO Methyl Ethyl Ketoxime is used in metal-protective coatings.
MEKO Methyl Ethyl Ketoxime prevents drying-skin formation in long-oil alkyd systems.
MEKO Methyl Ethyl Ketoxime maintains gloss and surface uniformity.

MEKO Methyl Ethyl Ketoxime is used in moisture-curing polymer systems.
MEKO Methyl Ethyl Ketoxime enables delayed curing and reduced premature crosslinking.
MEKO Methyl Ethyl Ketoxime helps achieve controlled reaction kinetics.

MEKO Methyl Ethyl Ketoxime is used in printing inks.
MEKO Methyl Ethyl Ketoxime improves shelf-life and prevents thickening.
MEKO Methyl Ethyl Ketoxime enhances ink film formation during drying.

MEKO Methyl Ethyl Ketoxime is used in surface-treatment chemicals.
MEKO Methyl Ethyl Ketoxime regulates reactivity and stability in reactive formulations.
MEKO Methyl Ethyl Ketoxime supports balanced cure profiles in multi-component systems.

MEKO Methyl Ethyl Ketoxime is used in polymer modification.
MEKO Methyl Ethyl Ketoxime provides temporary deactivation of reactive groups.
MEKO Methyl Ethyl Ketoxime improves processing safety during manufacturing.

MEKO Methyl Ethyl Ketoxime is used as an anti-skinning agent in alkyd paints.
MEKO Methyl Ethyl Ketoxime prevents the formation of a surface skin during paint storage.
MEKO Methyl Ethyl Ketoxime extends the shelf life of oxidative-drying coatings.

MEKO Methyl Ethyl Ketoxime is used in industrial metal coatings.
MEKO Methyl Ethyl Ketoxime stabilizes curing reactions in solventborne systems.
MEKO Methyl Ethyl Ketoxime improves application properties for large-scale coating operations.

MEKO Methyl Ethyl Ketoxime is used in varnishes.
MEKO Methyl Ethyl Ketoxime prevents premature oxidation of alkyd-based varnishes.
MEKO Methyl Ethyl Ketoxime supports smooth, defect-free drying.

MEKO Methyl Ethyl Ketoxime is used in polyurethane sealants.
MEKO Methyl Ethyl Ketoxime functions as a moisture scavenger in reactive systems.
MEKO Methyl Ethyl Ketoxime improves curing control in one-component PU products.

MEKO Methyl Ethyl Ketoxime is used in silicone sealants.
MEKO Methyl Ethyl Ketoxime serves as a curing agent in oxime-cure silicone formulations.
MEKO Methyl Ethyl Ketoxime enhances elasticity and adhesion in silicone-based sealants.

MEKO Methyl Ethyl Ketoxime is used in adhesives.
MEKO Methyl Ethyl Ketoxime helps maintain viscosity stability during storage.
MEKO Methyl Ethyl Ketoxime prevents premature crosslinking in reactive adhesives.

MEKO Methyl Ethyl Ketoxime is used in printing inks.
MEKO Methyl Ethyl Ketoxime prevents skin formation on ink rollers and trays.
MEKO Methyl Ethyl Ketoxime improves consistency in long printing runs.

MEKO Methyl Ethyl Ketoxime is used in epoxy coating systems.
MEKO Methyl Ethyl Ketoxime stabilizes resin mixtures by reducing oxidation.
MEKO Methyl Ethyl Ketoxime extends workable pot life in epoxy formulations.

MEKO Methyl Ethyl Ketoxime is used as a blocking agent for isocyanates.
MEKO Methyl Ethyl Ketoxime temporarily blocks NCO groups in polyurethane chemistry.
MEKO Methyl Ethyl Ketoxime enables controlled deblocking during final curing.

MEKO Methyl Ethyl Ketoxime is used in marine coatings.
MEKO Methyl Ethyl Ketoxime prevents surface defects in alkyd-based marine paints.
MEKO Methyl Ethyl Ketoxime supports long-term stability in harsh marine environments.

MEKO Methyl Ethyl Ketoxime is used in architectural coatings.
MEKO Methyl Ethyl Ketoxime enhances storage stability of exterior alkyd paints.
MEKO Methyl Ethyl Ketoxime improves uniform drying of decorative coatings.

MEKO Methyl Ethyl Ketoxime is used in corrosion-resistant systems.
MEKO Methyl Ethyl Ketoxime prevents early oxidation that may weaken protective coatings.
MEKO Methyl Ethyl Ketoxime helps maintain optimal film integrity.

MEKO Methyl Ethyl Ketoxime is used in alkyd resin production.
MEKO Methyl Ethyl Ketoxime controls oxidation during resin synthesis.
MEKO Methyl Ethyl Ketoxime supports uniform polymerization behavior.

DESCRIPTION

MEKO Methyl Ethyl Ketoxime is a clear, colorless to pale-yellow liquid.
MEKO Methyl Ethyl Ketoxime has a mild organic odor characteristic of oxime compounds.
MEKO Methyl Ethyl Ketoxime is volatile and readily evaporates during curing.

MEKO Methyl Ethyl Ketoxime inhibits premature oxidative curing.
MEKO Methyl Ethyl Ketoxime provides controlled release in oxime-cure silicone systems.
MEKO Methyl Ethyl Ketoxime decomposes during curing to regenerate isocyanate groups.

MEKO Methyl Ethyl Ketoxime is soluble in organic solvents used in paints and sealants.
MEKO Methyl Ethyl Ketoxime shows good compatibility with alkyd resins and polyurethane systems.
MEKO Methyl Ethyl Ketoxime improves shelf stability without altering final film properties.

MEKO Methyl Ethyl Ketoxime is a key intermediate in moisture-curing technologies.
MEKO Methyl Ethyl Ketoxime supports high-performance industrial coating requirements.
MEKO Methyl Ethyl Ketoxime is widely used due to its predictable reactivity and efficiency.

PROPERTIES

Appearance: Clear, colorless to yellowish liquid
Odor: Mild oxime-like odor
Boiling Point: ~152°C
Flash Point: ~62°C
Density: ~0.93 g/cm³
Solubility: Soluble in organic solvents; limited solubility in water
Vapor Pressure: Moderate
Reactivity: Blocks isocyanate groups; releases oxime during cure
Stability: Stable under normal storage; sensitive to strong oxidizers

FIRST AID

Inhalation:
Move to fresh air immediately.
Seek medical help if breathing irritation or discomfort occurs.

Skin Contact:
Wash thoroughly with soap and water.
Seek medical attention if redness or irritation persists.

Eye Contact:
Rinse thoroughly with water for at least 15 minutes.
Seek medical attention if irritation continues.

Ingestion:
Rinse mouth and do not induce vomiting.
Seek medical attention if symptoms develop.

Note to Physicians:
Treat symptomatically; monitor liver function with significant exposure.

HANDLING AND STORAGE

Handling:
Wear gloves, goggles, and protective clothing.
Avoid inhalation and skin contact with liquid.

Ventilation:
Use good ventilation or local exhaust during handling and mixing.

Avoidance:
Keep away from open flames, oxidizing agents, and excessive heat.
Avoid prolonged exposure to air in open containers.

Spill Procedures:
Absorb with inert material and collect for disposal.
Wash area with detergent after cleanup.

Storage:
Store in tightly sealed containers.
Keep in a cool, dry, well-ventilated area away from heat sources.
Protect from moisture and contamination.