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Technical Data Sheet

 

Re-issued September 2001

 

EPON™ Resin 161

 

Product Description

EPON™ Resin 161 is a multifunctional epoxidized phenolic novolac resin that combines relatively low viscosity with good thermal stability and chemical resistance properties. Because of this special combination of properties, use in a number of applications is indicated. EPON Resin 161 can be used as the sole resin component or in combination with standard resins and HELOXY™ Modifiers normally used in epoxy formulations. EPON Resin 161 is capable of curing with all classes of curing agents.

 

Application Areas/Suggested Uses

  • Solvent free industrial flooring
  • Chemically resistant coatings and solvent free tank linings
  • Laminating binders
  • Filament winding
  • Molding, electrical potting and encapsulation compounds
  • High temperature adhesives
 

Benefits

  • Relatively low viscosity for this class of product
  • High functionality
  • Superior chemical resistance
  • Good thermal resistance

Sales Specification

Property

Units

Value

Test Method/Standard

Epoxide Equivalent Weight

g/eq

169 – 178

ASTM D1652

Viscosity at 25°C 1

cP

18,000 – 28,000

ASTM D2196

Color

Gardner

2 max.

ASTM D1544

 

 

 

 

1 Brookfield Viscosity, Spindle Number 27 at 5 RPM

 

Typical Properties

Property

Units

Value

Test Method/Standard

Density at 25°C

lb/gal

10.0

ASTM D1475

 

 

 

 

 

General Information

EPON Resin 161 is only moderately higher in viscosity that EPON Resin 828. If desired as an aid to handling and processing, the viscosity may be reduced substantially by heating. Figure 1 illustrates the effect of temperature on viscosity of this material. EPON Resin 161 is compatible with typical HELOXY Modifiers, and can be blended with these products in order to modify viscosity characteristics or other traits. However, use in the intended application should be carefully evaluated.

 

Figure 1 / Viscosity of EPON™ Resin 161 vs. Temperature

 

EPON 161 Figure 1

 Performance Properties

 

Table 1 shows typical mechanical and thermal properties for EPON Resin 161 when cured with EPI-CURE® Curing Agent 3300 at the stoichiometric ratio of one amine active hydrogen per epoxide equivalent. Table 2 shows chemical resistance of this formulation to a variety of reagents. As chemical resistance data indicates, Bisphenol F epoxy novolacs typically show improved chemical resistance relative to resins based on Bisphenol A.

 

Table 1 / Physical properties of EPON Resin 161 cured with EPIKURE™ Curing Agent 3300

 

 

Method

Units

A

EPON Resin 161

 

pbw

100

EPIKURE Curing Agent 3300

 

pbw

24.4

 

 

 

 

Handling Properties @ 25°C

 

 

 

Gel Time, 100 gram mass

 

minutes

110

 

 

 

 

Cure Schedule

 

min./°C

90/82

90/149

 

 

 

 

Cured State Properties 1

 

 

 

Heat Deflection Temperature

ASTM D648

°C

133

Tg by DSC – midpoint

ASTM D3418

°C

154

Tensile Strength

ASTM D638

psi

11,400

Tensile Elongation at break

 

%

4.0

Tensile Modulus

 

ksi

450

Hardness

 

Durometer D

87

Weight loss 1

 

%

0.79

1 castings cured 90 min. at 180 °F, plus 90 min. at 300 °F

2 24 hrs @ 149°C (300°F)

 

Table 2 / Chemical Resistance properties of EPON Resin 161 cured with EPIKURE Curing Agent 3300 1

 

 

Method

Units

A

Chemical Resistance ,2

 

 

 

Deionized Water

 

 

 

at 24 hours

 

%

0.17

at 7 days

 

%

0.43

at 28 days

 

%

0.92

5% Acetic Acid

 

 

 

at 24 hours

 

%

0.16

at 7 days

 

%

0.44

at 28 days

 

%

0.93

50% Xylene / 50% Isopropanol

 

 

 

at 24 hours

 

%

-0.02

at 7 days

 

%

-0.02

at 28 days

 

%

-0.07

Acetone

 

 

 

at 24 hours

 

%

0.15

at 7 days

 

%

1.12

at 28 days

 

%

4.02

Methylene Chloride

 

 

 

at 24 hours

 

%

5.88

at 7 days

 

%

31.6

at 28 days

 

%

disintegrated

 

 

 

 

1 castings cured 90 min. at 180 °F, plus 90 min. at 300 °F

2 Percent weight gain of 3 in. x 1 in. x 0.125 in. specimens immersed in specific reagents at 23 °C.

 

Safety, Storage & Handling

Please refer to the MSDS for the most current Safety and Handling information.

 

Please refer to the Hexion web site for Shelf Life and recommended Storage information.

 

Exposure to these materials should be minimized and avoided, if feasible, through the observance of proper precautions, use of appropriate engineering controls and proper personal protective clothing and equipment, and adherence to proper handling procedures. None of these materials should be used, stored, or transported until the handling precautions and recommendations as stated in the Material Safety Data Sheet (MSDS) for these and all other products being used are understood by all persons who will work with them. Questions and requests for information on Hexion Inc. ("Hexion") products should be directed to your Hexion sales representative, or the nearest Hexion sales office. Information and MSDSs on non-Hexion products should be obtained from the respective manufacturer.

 

Packaging

Available in bulk and drum quantities.

 

 

Contact Information

For product prices, availability, or order placement, please contact customer service:

www.hexion.com/Contacts/

 

For literature and technical assistance, visit our website at: www.hexion.com

 

® and ™ Licensed trademarks of Hexion Inc.

DISCLAIMER

The information provided herein was believed by Hexion Inc. (“Hexion”) to be accurate at the time of preparation or prepared from sources believed to be reliable, but it is the responsibility of the user to investigate and understand other pertinent sources of information, to comply with all laws and procedures applicable to the safe handling and use of the product and to determine the suitability of the product for its intended use. All products supplied by Hexion are subject to Hexion’s terms and conditions of sale. HEXION MAKES NO WARRANTY, EXPRESS OR IMPLIED, CONCERNING THE PRODUCT OR THE MERCHANTABILITY OR FITNESS THEREOF FOR ANY PURPOSE OR CONCERNING THE ACCURACY OF ANY INFORMATION PROVIDED BY HEXION, except that the product shall conform to Hexion’s specifications. Nothing contained herein constitutes an offer for the sale of any product.

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