Product Description
Epoxy hardener HW-540 is a low-viscosity, solvent-free cardanol modified PAA curing agent mainly used in epoxy coating systems. The product features low viscosity, rapid curing, low surface treatment requirement, high glass transition temperature, good bonding strength, excellent chemical resistance, and excellent adhesion even on wet or untreated substrate surface. Due to the excellent water resistance and corrosion resistance, it is very suitable for heavy-duty coatings, marine coatings and other fields.
1. The physical and chemical properties
| Appearance |
Reddish brown liquid |
| Color (Gardner) |
≤ 17 |
| Volatile (%) |
≤4.0 |
| Amine value (mgKOH) |
490-550 |
| Viscosity (25°C,mPas) |
2000-3000 |
| Density (25°C, kg/L) |
0.96-0.99 |
| Density(25°C, g/cm3) |
0.95-0.99 |
| AHEW |
81 |
| Flash point (°C) |
107.2 |
| Recommended PHR (Liquid resin, EEW= 190) |
30-40 |
2. Application
Epoxy hardener HW-540 is suitable for such fields as marine coatings, industrial maintenance coatings, protective and floor coatings with high-solid or solvent-free, low surface treatment requirement.With good chemical resistance and excellent accessibility to drinking water, it is especially suitable for concrete or metal can lining and pipeline coatings. It can be even used on wet and poorly treated substrate surfaces in cold and wet conditions. Featuring fast curing and high hardness, it is quite suitable for the fields with short construction period. Its wide curing temperature range and loose blending ratio with resin expands the application range for coatings
3. Storage and packaging
Stored in a cool and dry place with ventilation and can be sealed for 12 months.
Package:200kg/ iron drum.
Our advantage:
We are very professional in manufacturing and exporting epoxy new materials for 20+ years, the capacity reaches 90000tons per year.
1. We can provide a full range of epoxy and polyamide systems not only resin and hardener but also diluents, accelerator, kinds of additives.
2. Our best-selling items are the countertype of Kukdo128/011X75/Dow125/Ancamine1618/AGE C12-14/BYK/ /Hexion/Huntsman and etc.
3. They are widely used in floor coatings, anti-corrosion coatings, solvent-free & waterborne coatings, construction, electrical sealants potting materials, adhesives, etc.
4. We have strong R&D powder, customized service and sample testing is available.
Company Profile
Audited Supplier 
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