Isophorone diamine

CAS: 2855-13-2

Overview

Isophorone diamine (CAS 2855-13-2 ), commonly known as IPDA, is a cycloaliphatic diamine used as a curing agent and building block in high-performance polymer systems.

Its low reactivity at ambient temperatures combined with rapid cure at elevated temperatures makes it a controlled, reliable hardener for demanding formulations across various industries.

In epoxy coatings for automotive and aerospace substrates, IPDA delivers cured films with strong UV stability and chemical resistance, which is critical for exterior and underbody protection.

Structural adhesives and sealants in construction and transportation rely on IPDA-cured systems where flexibility and long-term durability under mechanical stress are required for safety.

As a monomer in polyurea and polyurethane synthesis, IPDA contributes to elastomers and casting compounds used in industrial flooring, protective linings, and electronic encapsulation.

Printing and packaging applications use IPDA-based systems in laminating adhesives where low yellowing and adhesion to film substrates are key selection criteria for manufacturers.

IPDA is supplied as a clear to slightly yellowish liquid in standard drum and IBC packaging. Technical and industrial grades are the primary commercial forms available for purchase.

Purity is typically specified at 99% or higher. Some suppliers offer low-color or low-viscosity variants tailored for coating and adhesive formulations with strict appearance requirements.

Physical Properties

Melting Point	10 °C
Boiling Point	247 °C
Density	0.922 g/cm³
Flash Point	>230 °F
Appearance	faintly yellow liquid
Color	Clear
Form	Liquid
Water Solubility	miscible
Vapor Pressure	0.02 hPa (20 °C)
Refractive Index	n 20/D 1.490
pH	11.6 (10g/l, H2O, 20℃)
Log P	0.99 at 23℃

Safety & Handling

Danger GHS05 GHS07 GHS08 Hazard Statements H302 Harmful if swallowed H312 Harmful in contact with skin H314 Causes severe skin burns and eye damage H317 May cause an allergic skin reaction H318 Causes serious eye damage H373 May causes damage to organs through prolonged or repeated exposure H402 Harmful to aquatic life H412 Harmful to aquatic life with long lasting effects Precautionary Statements P260 Do not breathe dust/fume/gas/mist/vapours/spray. P261 Avoid breathing dust/fume/gas/mist/vapours/spray. P264 Wash … thoroughly after handling. P270 Do not eat, drink or smoke when using this product. P272 Contaminated work clothing should not be allowed out of the workplace. P273 Avoid release to the environment. P280 Wear protective gloves/protective clothing/eye protection/face protection. P316 Get emergency medical help immediately. P317 Get emergency medical help. P319 Get medical advice/attention if you feel unwell. P321 Specific treatment (see … on this label). P330 Rinse mouth. P363 Wash contaminated clothing before reuse. P405 Store locked up. P501 Dispose of contents/container in accordance with local regulations. P264+P265 Wash … thoroughly after handling. P301+P317 Get emergency medical help. P302+P352 IF ON SKIN: Wash with plenty of water. P304+P340 IF INHALED: Remove person to fresh air and keep comfortable for breathing. P333+P317 Get emergency medical help. P362+P364 Take off contaminated clothing and wash it before reuse. P301+P330+P331 Rinse mouth. Do NOT induce vomiting. P302+P361+P354 IF ON SKIN: Take off immediately all contaminated clothing. Rinse skin with water/shower. P305+P354+P338 IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.

Trade & Regulatory

HS Code	29213000
UN Number	2289
ADR Class	8
Packing Group	III
Storage Class	8A - Combustible corrosive hazardous materials
WGK (Germany)	1

Other Names

Industries

Automotive Aerospace & Defense Building & Construction Printing & Packaging Coatings, Adhesives, Sealants & Elastomers Plastics & Polymers