CM-W2
Partially neutralized, water-dispersible epoxy curing agent based on the CM-PF-M intermediate
Water-dispersible epoxy systems · Low-VOC focus · Adjustable degree of neutralization and stability
| Product positioning Based on the CM-PF-M intermediate, partially neutralized with lactic acid to form an amine salt and dispersed in water; designed for use in waterborne epoxy coatings and related water-dispersible epoxy systems. |
| Product information |
Details |
| Brand |
Vanconol |
| Product code |
CM-W2 |
| English name |
Partially Neutralized Water-Dispersible Epoxy Curing Agent Based on CM-PF-M |
| Manufacturer |
Tianjin Hi-Perferal Advanced Materials Co., Ltd. |
| Document version |
TDS v1.0 · Initial technical release |
| Intended use |
Product selection, formulation screening and application discussions; for safety information refer to the accompanying SDS |
1 Product Overview
Based on the CM-PF-M intermediate, partially neutralized with lactic acid to form an amine salt and dispersed in water; designed for use in waterborne epoxy coatings and related water-dispersible epoxy systems.
2 Key Features
- The CM-PF-M intermediate is the functional base; partial neutralization with lactic acid provides water dispersibility.
- Suitable for formulation optimization around solids content, degree of neutralization, pH and storage stability.
- Designed for low-VOC waterborne epoxy coating applications.
- Stepwise water addition and a maturation step can improve dispersion uniformity and storage stability.
3 Product and Composition Information
| Item |
Technical information |
| Product form |
Water-dispersible liquid epoxy curing agent (specific appearance, particle size/turbidity to be confirmed per batch) |
| Chemical type |
Partially neutralized amine salt water-dispersible curing agent based on CM-PF-M |
| Main components |
CM-PF-M intermediate / 80% aqueous lactic acid / deionized water |
| Central screening target |
Solids content approx. 55%; degree of neutralization approx. 20% |
| Parameter status |
R&D target values; not equivalent to final product specifications |
| Data status note This TDS distinguishes R&D screening starting points, target values and values pending measurement from formal specifications. Unless expressly stated otherwise, the values in the tables should not be interpreted as batch release limits or as a guarantee of final performance. |
4 Typical Technical Data (to be established / confirmed per batch)
| Parameter |
Current data status |
Relevance to application |
| Appearance, colour, odour |
Internal typical values to be established |
To be based on test results from representative batches |
| Solids content |
Target approx. 55% |
To be corrected against measured results |
| pH, viscosity |
To be measured |
To be evaluated together with the resin used and the mix ratio |
| Separation, surface oiling, sedimentation, particle size/turbidity |
To be measured |
Used to assess dispersion stability |
5 Recommended Applications
| Application |
System compatibility and key considerations |
Suitable R&D scenarios |
| Waterborne epoxy coatings |
Screening in combination with waterborne epoxy resins or epoxy emulsions |
Waterborne primers, protective coatings and maintenance coatings |
| Low-VOC applications |
Replacing part of the organic diluent medium with a water-dispersible system |
Actual VOC levels must be measured on the complete formulation |
| Waterborne two-component systems |
Focus on stability after mixing, pot life and film formation |
Resin compatibility screening required |
6 Suggested Starting Use Window
The parameters below are intended for laboratory formulation screening and for establishing the application window. Formal recommendations should be adjusted according to the target epoxy resin, pigments and fillers, application temperature, substrate and test results.
| Screening parameter |
Suggested starting point/window |
Notes |
| Curing agent / epoxy resin |
0.8 / 1.0 / 1.2 (equivalent ratio) |
For screening cure degree and film properties |
| Curing temperature |
5 / 10 / 25 °C |
For evaluating low-temperature film formation and ambient-temperature curing |
| Degree of neutralization |
Approx. 20% |
Central screening value; lactic acid dosage calculated from the measured amine value |
| Water dispersion process |
Neutralization at 40–55 °C; water added in 3–5 stages; maturation approx. 24 h |
Screening window for dispersion and storage stability |
7 Recommended Evaluation Items
- Stability after mixing and pot life
- Appearance, separation, surface oiling, sedimentation
- Solids content and pH
- Changes in particle size/turbidity
- Hardness at 24 h and 7 d
- Water resistance, adhesion and resistance to media
| Formulation screening recommendation Parallel evaluations should be carried out with the same batch of bisphenol A liquid epoxy resin, recording the curing agent/resin ratio, ambient temperature, humidity, film thickness, substrate preparation, gel time, hardness and adhesion, so that product performance is not judged on a single parameter alone. |
8 Handling and Use Recommendations
- Before use, confirm the appearance, uniformity, batch number and storage condition of the curing agent; if necessary, carry out a small-scale compatibility test first.
- The epoxy resin and curing agent should be proportioned on the basis of equivalent weight and the measured AHEW; do not rely on a mass ratio alone for long-term use.
- Before application, assess the mixed viscosity, pot life, substrate moisture content, ambient temperature and humidity, and film formation conditions.
- For waterborne systems, particular attention should be paid to stability after mixing, pH, separation/surface oiling, drying speed and water resistance.
9 Packaging and Technical Service
| Item |
Information |
| Packaging |
Confirmed according to the actual supply batch and customer requirements |
| Storage conditions |
In accordance with the formal label and SDS requirements; confirm the storage condition of the batch before use |
| Technical support |
Support available for formulation screening, curing condition optimization and application performance evaluation |
| Related documents |
SDS, COA and batch test reports provided as controlled versions |
| Disclaimer This TDS is intended for technical communication and formulation screening. Actual results depend on the resin type, formulation composition, substrate, application and curing conditions; formal specifications, batch quality and regulatory information are governed by the controlled versions of the TDS, COA and SDS. |
Source: internal company documentation on three epoxy curing agent production processes and the 4500 kg plant batch material balance (2026-11).
Tianjin Hi-Perferal Advanced Materials Co., Ltd. · Vanconol
