Zepoxy REH 460

Name: Zepoxy REH 460
Brand: Ressichem

Zepoxy REH 460 is a high-performance cycloaliphatic modified phenalkamine curing agent engineered for demanding epoxy coating and repair applications. Its medium-viscosity formulation delivers excellent adhesion, superior chemical resistance, and dependable underwater curing performance in humid and marine environments. Ideal for industrial flooring, protective coatings, and structural repair systems, this epoxy hardener ensures fast curing with long-lasting durability. Zepoxy REH 460 supports strong bonding on concrete and metal surfaces while maintaining reliable mechanical strength under harsh operating conditions. It is widely trusted for heavy-duty corrosion protection and advanced epoxy formulations.

Technical Datasheet

Zepoxy REH 460

Zepoxy REH 460 cycloaliphatic modified phenalkamine medium viscous, hardener is a next-generation epoxy curing agent designed for superior performance in challenging environments. It offers excellent chemical resistance, outstanding adhesion, and the ability to cure even under water or in highly humid conditions.

APPLICATIONS

Marine, offshore structures
Underwater Curing systems
Industrial plants & Chemical tanks
Old concrete to new concrete bonding
Heavy duty protective coating

BENEFITS

Excellent chemical resistance
Underwater & high-humidity curing
Excellent adhesion to substrates
Excellent corrosion protection
Good flexibility and impact resistance

TECHNICAL DATA

Property	Test Method	Result
Appearance	visual	clear, red to brown liquid
*Color	ASTM D 1544-04	15 G max
*Amine value	ASTM D 1652	220 - 240mg KOH/g
*Viscosity @ 25°C	ASTM D 2196-05	10000 – 20000 cps
Odor	-	Amine
*AHEW	-	160
Mix ratio with Zepoxy RER 128	-	100:80
*Gel time (300g mass) at 25°C	-	40-80 min
*Flash Point	-	>102°C

*Typical results under laboratory conditions.

PACKAGING

Zepoxy REH 460 is available as follows:

1 KG, 5KG, 15KG, 30KG, and 200KG

HEALTH AND SAFETY

Dispose containers of the materials as per local laws, rules, and regulations. Use gloves, safety masks and other safety apparel as per health and safety laws. For further assistance, please refer to the MSDS of the product for further health and safety information.

CHEMICAL RESISTANCE CHART

Chemical Name	Concentration (%)	Exposure Duration	Resistance Rating	Remarks
Hydrochloric Acid	Pure	14 Days	Excellent	No change in hardness & weight
Phosphoric Acid	Pure	14 Days	Good to moderate	Surface slightly softened; negligible weight gain.
Phosphoric Acid	50%	14 Days	Good	Slightly change in hardness & weight
Phosphoric Acid	20%	14 Days	Excellent	No change in hardness & weight
Sulfuric Acid	Pure	14 Days	Poor	Complete loss of mechanical integrity.
Sulfuric Acid	50%	14 Days	Good to moderate	Surface slightly softened; negligible weight gain.
Sulfuric Acid	20%	14 Days	Excellent	No change in hardness & weight
Hydrogen Peroxide	Pure	14 Days	Excellent	No change in hardness & weight
Lactic Acid	Pure	14 Days	Poor	Complete loss of mechanical integrity.
Lactic Acid	50%	14 Days	Fair to Poor	Surface softened; weight increase due to swelling.
Lactic Acid	20%	14 Days	Good	Very slightly change in hardness & weight
Nitric Acid	Pure	14 Days	Poor	Complete loss of mechanical integrity.
Nitric Acid	20%	14 Days	Good	Slightly change in hardness & weight
Sodium Hydroxide	50%	14 Days	Excellent	No change in hardness & weight
Sodium Hypochlorite	35%	14 Days	Excellent	No change in hardness & weight
Acetic Acid	Pure	14 Days	Poor	Complete loss of mechanical integrity.
Acetic Acid	10%	14 Days	Fair to Poor	Surface softened; weight increase due to swelling.
Ammonia Solution	20%	14 Days	Excellent	No change in hardness & weight
IPA	Pure	14 Days	Excellent	No change in hardness & weight
Xylene	Pure	14 Days	Excellent	No change in hardness & weight
Mineral Spirit	Pure	14 Days	Excellent	No change in hardness & weight