Overview
Polypropylene glycol diamine (CAS 9046-10-0 ) is a difunctional amine-terminated polyether used as a reactive building block in polymer systems. Its terminal amine groups enable direct participation in curing and crosslinking reactions.
This versatile chemical is essential for chain extension across a broad range of thermoset and elastomeric applications. In epoxy coating systems, it acts as a flexible curing agent, improving impact resistance and elongation.
It is widely utilized in protective and floor coatings to enhance durability. Polyurethane and polyurea formulations use it as a chain extender to tune mechanical properties and processing characteristics in spray-applied membranes.
Adhesive manufacturers incorporate it into structural and elastic bonding systems where controlled flexibility is required. It ensures superior substrate adhesion and performance in demanding industrial environments.
In construction composites and grouts, it contributes to toughened resin matrices with improved crack resistance. This makes it ideal for applications subject to dynamic loads and environmental stress over time.
The product is supplied as a clear to slightly yellow liquid available across a range of molecular weights. These typically range from 230 to 4000 g/mol, which determines the amine equivalent and reactivity.
The molecular weight directly influences the flexibility and curing speed in the final system. Technical-grade material is the standard commercial offering, with specifications defined by amine value and viscosity.
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Physical Properties
| Melting Point | -29 °C |
| Boiling Point | 250 °C |
| Density | 0.946 g/cm³ (Liquid) |
| Flash Point | >230 °F |
| Color | Light yellow |
| Odor | Amine-like odor |
| Form | Liquid |
| Water Solubility | 100g/L at 20℃ |
| Vapor Pressure | 90Pa at 20℃ |
| Refractive Index | n 20/D 1.452 |
| Log P | 1.34 at 25℃ |
Safety & Handling
Danger GHS05 GHS06 GHS07 GHS08 Hazard Statements H302 Harmful if swallowed H304 May be fatal if swallowed and enters airways H311 Toxic in contact with skin H314 Causes severe skin burns and eye damage H315 Causes skin irritation H318 Causes serious eye damage H319 Causes serious eye irritation H335 May cause respiratory irritation 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. P262 Do not get in eyes, on skin, or on clothing. P264 Wash … thoroughly after handling. P270 Do not eat, drink or smoke when using this product. P271 Use only outdoors or in a well-ventilated area. 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. P331 Do NOT induce vomiting. 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+P316 Get emergency medical help immediately. 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. P332+P317 Get emergency medical help. P337+P317 If eye irritation persists: Get medical advice/attention. Get emergency medical help. P361+P364 Take off immediately all contaminated clothing and wash it before reuse. P362+P364 Take off contaminated clothing and wash it before reuse. P403+P233 Store in a well-ventilated place. Keep container tightly closed. 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+P351+P338 IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. 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
| UN Number | 2922 |
| ADR Class | 8 |
| Packing Group | III |
| Storage Class | 8A - Combustible corrosive hazardous materials |
| WGK (Germany) | 3 |
Other Names
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Chemical Properties
- CAS Number
- 9046-10-0
- EC Number
- 817-485-7
- Mol. Weight
- 103.12
- Category
- Polymers & Resins