Methyl isobutyl ketone (MIBK) is a versatile solvent used in various industries, including paints, coatings, adhesives, pharmaceuticals, and as a chemical intermediate, as well as in the production of rubber anti-ozonants and for extracting and purifying chemicals. 
Here’s a more detailed breakdown of MIBK’s uses:

Solvent in Various Industries:

Paints and Coatings: MIBK is a common solvent for nitrocellulose, vinyl resins, and acrylic resins, and is used as a thinner for lacquers, varnishes, and enamels. 
Adhesives: It serves as a solvent for rubber and resin-based adhesives. 
Pharmaceuticals: MIBK is used as a solvent for various drugs and as an extraction solvent for plant materials. 
Chemicals: It’s used as a solvent in the production of various chemicals, including germicides, fungicides, and pharmaceuticals. 
Industrial Cleaners: MIBK is used in the semiconductor industry and as a cleaning agent for equipment and surfaces.

Chemical Intermediate:

Rubber Anti-Ozonants: MIBK is a precursor to N-(1,3-dimethylbutyl)-N’-phenyl-p-phenylene diamine (6PPD), an antiozonant used in tires. 
Other Chemical Synthesis: It’s used as a chemical intermediate in the synthesis of other chemicals. 

Extraction Agent:

Petroleum Products: MIBK is used as an extraction agent in the dewaxing and deoiling of petroleum products. 
Rare Metal Extraction: It’s used as a solvent for metal separation in rare metal extraction. 

Other Uses:

Denaturant: MIBK is used as a denaturant in many ethanol formulations. 
Flavoring and Fragrance: It strengthens and preserves flavors and fragrances. 
Food Contact Materials: MIBK is used in food-contact materials