Isophorone Diamine (IPDA) Curing Agent
CAS Number: 2855-13-2
Isophorone Diamine (IPDA) is a cycloaliphatic primary diamine used as a curing agent for epoxy resins, delivering non-yellowing, high-gloss coatings and adhesives with excellent UV stability. Its cycloaliphatic structure imparts higher Tg and better outdoor durability than linear aliphatic amines, while its moderate reactivity allows adequate working time. IPDA-cured epoxies are widely used in decorative floor coatings, clear adhesives, and UV-stable aerospace coatings.
Technical Specifications
| color | ≤20 (APHA) |
| purity | ≥99% |
| viscosity | 10–20 mPa·s (25 °C) |
| appearance | Colorless to pale yellow liquid |
| aminoHydrogenEquivalent | 42.6 g/eq |
Applications
- UV-stable decorative floor coatings
- Clear and non-yellowing adhesives
- Aerospace and marine topcoats
- Transparent epoxy castings and optical applications
- Cycloaliphatic polyurethane coatings
Key Features
- Excellent UV stability—no yellowing under sunlight
- Higher Tg than aliphatic amines
- Good outdoor and weathering durability
- Moderate reactivity for adequate pot life
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CAS Number
2855-13-2
Category
Adhesive / Sealant AdditivesAvailability
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