Description

Isophorone Diisocyanate (IPDI) is a key aliphatic diisocyanate monomer, valued for its excellent light stability, chemical resistance, and mechanical properties in polymer formulations. Its primary commercial significance lies in producing high-performance, weatherable polyurethane coatings, adhesives, and elastomers. This product is essential for manufacturers in the automotive, industrial coating, and specialty adhesive sectors seeking durable, non-yellowing materials.

Application

• High-Performance Polyurethane Coatings: For automotive OEM and refinish, aerospace, and industrial maintenance coatings requiring superior UV and weather resistance.
• Light-Stable Elastomers: Used in the production of cast, thermoplastic, and millable polyurethane elastomers for seals, gaskets, and rollers.
• Adhesives & Sealants: A critical raw material for formulating high-strength, flexible adhesives and sealants with good aging characteristics.
• UV-Curable Systems: Serves as a reactive diluent and crosslinker in radiation-curable resins for wood, plastic, and metal coatings.
• Waterborne Polyurethane Dispersions (PUDs): Used to synthesize stable aqueous dispersions for eco-friendly coatings and finishes.
• Polyisocyanurate Foams: Imparts improved thermal stability and fire resistance to rigid insulation foams.

Basic Information

Product Name	Isophorone Diisocyanate
CAS No.	4098-71-9
Molecular Formula	C12H18N2O2
Molecular Weight	222.28 g/mol
Synonyms	IPDI; 3-Isocyanatomethyl-3,5,5-trimethylcyclohexyl Isocyanate; Isophorone Diisocyanate, mixture of cis and trans; 5-Isocyanato-1-(isocyanatomethyl)-1,3,3-trimethylcyclohexane; VESTANAT® IPDI; DESMODUR® I; DURANATE® TPA-100
EINECS	223-861-6

Quality Control

Our Isophorone Diisocyanate is manufactured under stringent process controls to ensure batch-to-batch consistency and high purity. Quality is verified against established internal specifications and industry standards. A comprehensive Certificate of Analysis (COA) detailing purity, isomer ratio, and impurity levels is provided with each shipment to support your quality assurance protocols.

Storage

Preserve in a tightly closed, moisture-proof container, protected from light. Store in a cool, dry, well-ventilated area at temperatures between 15°C and 25°C (59°F and 77°F). Due to its hygroscopic and moisture-sensitive nature, containers must be kept tightly sealed under a dry inert atmosphere (e.g., nitrogen) to prevent reaction with atmospheric moisture. Keep away from heat, open flames, and incompatible materials such as alcohols, amines, and strong bases.

Specification

Item	Specification
Appearance	Clear, colorless to pale yellow liquid
Identification (IR)	Conforms
Assay (GC)	≥ 99.5 %
Isomer Ratio (cis/trans)	Approx. 75/25
Hydrolyzable Chloride	≤ 10 ppm
Total Chloride	≤ 20 ppm
Color (APHA)	≤ 30
Density at 20°C	1.06 g/cm³
Viscosity at 25°C	Approx. 15 mPa·s
NCO Content	Approx. 37.8 %

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.