Excellent Chemical Resistance and Excellent Adhesion Liquid Epoxy Hardener Hw-540

• Customization: Available
• Color: Reddish Brown
• Appearance: Liquid
• Model NO.: Epoxy Hardener HW-540
• Packaging: Iron Drum
• Viscosity: 2000-3000
• Amine Value: 490-550
• Color (Gardner): ≤17
• Volatile (%): ≤4.0
• 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
• Liquid Epoxy Resin (Eew=190): 50
• Epoxy Hardener Hw-540: 20
• Gel Time@25ºC (Min): 30-55
• Transport Package: Drum
• Specification: 200 KG/Drum
• Trademark: Honrepoxy
• Origin: China
• HS Code: 2921300090
• Production Capacity: 90000tons Per Year

Product Description

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.

Advantages:
1. Fast curing and longer operation life under the normal and low temperature, the lowest curing.
2. temperature up to -10°C.
3. Wide construction blending ratio.
4. Good chemical resistance.
5. Good compatibility with multiple solvents and reins.
6. Excellent corrosion resistance.
7. Good adhesion even on the material surface with low surface treatment.
8. Good moisture resistance in curing.

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.

 

Typical handling properties:

Preparation method	Specification
Liquid epoxy resin (EEW=190)	50
Epoxy hardener HW-540	20
Gel Time@25ºC (min)	30-55
Thin film set time, 8mils (200micron) @25°C ( hrs, dry to touch / dry hard / dry through)	1.5/3.5/4.5
@5°C (hrs, dry to touch / dry hard / dry through)	3/13/19
@0°C (hrs, dry to touch / dry hard / dry through)	-/19/30

 

1. The physical and chemical properties

Appearance	Reddish brown liquid
Viscosity (25°C,mPa.s)	2000-3000
Amine value (mgKOH/g)	490-550
Color(Gardener)	≤17
Flash point (°C)	107.2
A.H.E.W	81
Volatile (%)	≤4.0
Density (25°C, kg/L)	0.96-0.99
Density(25°C, g/cm3)	0.95-0.99
Recommended PHR (Liquid resin, EEW=190)	30-40

 

Storage and packaging:

Stored in a cool and dry place with ventilation and can be sealed for 12 months.

Package:200kg/ iron drum.

 

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