Zepoxy REH 470

Name: Zepoxy REH 470
Brand: Ressichem

Ressichem manufactures Zepoxy REH 470, a cycloaliphatic modified phenalkamine epoxy curing agent developed for exceptional adhesion, rapid curing, and superior chemical resistance. Designed for challenging industrial conditions, it performs effectively in humid, underwater, and low-temperature environments while maintaining strong mechanical integrity. This medium-viscosity hardener enhances epoxy coating systems used in marine structures, protective flooring, tank linings, and corrosion-resistant applications. Zepoxy REH 470 offers excellent moisture tolerance, reliable surface bonding, and long-term durability, making it ideal for demanding maintenance and protective coating solutions.

Technical Datasheet

Zepoxy REH 470

Zepoxy REH 470 is a modified cycloaliphatic, high-viscosity epoxy hardener developed as a next-generation curing agent for demanding applications. It delivers excellent chemical resistance, strong adhesion, and reliable curing performance.

APPLICATIONS

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

BENEFITS

Excellent adhesion
Good toughness and flexibility
Good pigment and substrate wetting
Low temperature and damp environment curing
Good corrosion protection
Good flexibility and impact resistance

TECHNICAL DATA

Property	Test Method	Result
Appearance	visual	Clear to yellow, transparent
*Color	ASTM D 1544-04	6 G max.
*Amine value	ASTM D 1652	200 - 250 mg KOH/g
*Viscosity @ 25°C	ASTM D 2196-05	150000 – 350000 cPs
Odor	-	Amine
*Density @ 25°C	ASTM D 1475-98	0.96 g/cc
*AHEW	-	180 g/eq
Mix ratio w/ RER 128	-	100:100
Gel time (300g mass) at 25°C	-	40 – 60 min
Flash Point	-	>102°C
*Flexural Strength	ASTM D 790	40 MPa
*Compressive Strength - Yield	ASTM D 695	65 MPa
*Compressive Strength - Ultimate	ASTM D 695	70 MPa

*Typical results under laboratory conditions.

PACKAGING

Zepoxy REH 470 is available as follows:

1 KG, 5KG, 10KG, 25KG, 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	Fair to Poor	Surface softened; weight increase due to swelling.
Phosphoric Acid	Pure	14 Days	Fair to Poor	Surface softened; weight increase due to swelling.
Phosphoric Acid	50%	14 Days	Fair to Poor	Surface softened; weight increase due to swelling.
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	Fair to Poor	Surface softened; weight increase due to swelling.
Sulfuric Acid	10%	14 Days	Excellent	No change in hardness & weight
Hydrogen Peroxide	30%	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