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Technical Data Sheet

 

Re-issued September 2001

 

 

EPON™ Resin 58034

 

 

Product Description

EPON™ Resin 58034 is an elastomer modified epoxy functional adduct formed from the reaction of HELOXY™ 68 Modifier and a carboxyl terminated butadiene-acrylonitrile elastomer. Elastomer content is approximately 50 percent by weight. The primary use of EPON 58034 is in the modification of conventional epoxy systems to increase flexibility, adhesion properties and fatigue resistance.

 

Application Areas/Suggested Uses

  • Adhesives
 

 

Benefits

  • High elastomer content provides compounding flexibility to incorporate desired levels of elastomer into finished formulation
  • Compatible with conventional bisphenol A epoxies
  • Low viscosity
  • Imparts improved peel strength and fatigue resistance into adhesive systems

 

Sales Specification

Property

Units

Value

Test Method/Standard

Epoxide Equivalent Weight

g/eq

275 – 305

ASTM D1652

Viscosity at 25°C

P

40 – 80

ASTM D2196

Color

Gardner

10 max.

ASTM D1544

 

 

 

 

 

Typical Properties

Property

Units

Value

Test Method/Standard

Density at 25°C

lb/gal

8.4

ASTM D1475

 

 

 

 

 

 

General Information

EPON 58034 is compatible with conventional bisphenol A based epoxy resins within the typically used range of concentrations (<40% by weight).

 

Concentration of this modifier required for optimum performance is dependent upon such factors as resin type, curing agent type, and specific performance requirements, but is generally found to be within the weight range of 10-40%. Characterization of EPON 58034 in combination with EPON Resin 828 is shown in Figure 1.

 

Typical physical and adhesive properties, when cured with a representative aliphatic amine and accelerated amidoamine are listed in Tables 1 and 2.

 

Figure 1 / EPON™ Resin 828/EPON Resin 58034 Blends

 

EPON 58034 Figure 1

 

Performance Properties

 

Table 1 / Effect of EPON™ Resin 58034 Concentration on Physical Properties of an Epoxy System

 

 

Method

Units

A

B

C

D

E

EPON Resin 58034

 

pbw

---

10

20

30

40

EPON Resin 828

 

pbw

100

90

80

70

60

EPIKURE™ Curing Agent 3234

 

pbw

13

12.4

12

11.6

11.1

 

 

 

 

 

 

 

 

Handling Properties @ 25°C

 

 

 

 

 

 

 

System Viscosity

 

cP

3,000

2,720

3,000

3,600

3,680

Gel Time, 100 gram mass

 

minutes

37

35

45

52

54

 

 

 

 

 

 

 

 

Cure Schedule

 

wk/°C

1/25

1/25

1/25

1/25

1/25

 

 

 

 

 

 

 

 

Cured State Properties 1

 

 

 

 

 

 

 

Heat Deflection Temperature

ASTM D648

°C

70

64

62

62

60

Tensile Strength, ultimate

ASTM D638

psi

10,300

8,320

5,860

4,940

3,450

Tensile Elongation at break

 

%

4.9

2.2

2.3

4.2

1.6

Flexural Strength

ASTM D790

psi

13,075

13,075

11,285

9,505

7,925

Flexural Modulus

 

ksi

480

480

400

320

2800

Compressive Strength, Ultimate

 

psi

11,500

11,500

12,600

5,450

5,046

Compressive Strength, Yield

 

psi

8,315

8,400

7,250

5,450

4,575

Hardness

 

Shore D

80

81

79

72

69

Tensile Shear Strength

ASTM D638

 

 

 

 

 

 

Aluminum/Aluminum 2

 

psi

1,550

2,550

2,703

3,889

2,895

Steel/Steel 3

 

psi

2,600

3,400

3,929

4,078

2,922

90° Peel Strength

 

 

 

 

 

 

 

Aluminum/Aluminum

 

lbs/inch

1.0-1.5

14-16

14-16

16-18

13-15

 

 

 

 

 

 

 

 

Chemical Resistance

 

 

 

 

 

 

 

Water absortion 3

 

 

 

 

 

 

 

1 Day

 

%

0.14

0.14

0.17

0.22

0.26

3 Days

 

%

0.21

0.26

0.31

0.40

0.46

2 Weeks

 

%

0.55

0.57

0.63

0.86

1.01

 

 

 

 

 

 

 

 

1  Determined at 23 °C following one week cure at 25 °C.

2 Acid etched 2024-T3 aluminum coupons.

3 Sandblasted cold-rolled steel coupons

4 5-Mil aluminum foil bonded to 2024-T3 backing – both acid etched.

* Opacity of Systems 2 through 5 suggests heterogeneous cured state.

 

Table 2 / Effect of EPON Resin 58034 on Adhesive Properties of Various Systems

 

 

Method

Units

A

B

C

D

EPON Resin 828

 

pbw

100

80

100

80

EPON Resin 58034

 

pbw

---

20

---

20

EPIKURE Curing Agent 3234

 

pbw

13

12

---

---

EPIKURE Curing Agent 3072

 

pbw

---

---

35

32

 

 

 

 

 

 

 

Cured State Properties 1

 

 

 

 

 

 

Hardness

 

Shore D

88

79

88

77

Tensile Shear Strength

ASTM D638

 

 

 

 

 

Aluminum/Aluminum 2

 

psi

1,520

2,703

1,690

3,490

Steel/Steel 3

 

psi

2,610

3,929

2,700

4,050

90° Peel Strength

 

 

 

 

 

 

Aluminum/Aluminum

 

lbs/inch

0.5-1.0

14-16

4-5

15-16

 

 

 

 

 

 

 

1  Determined at 23 °C following one week cure at 25 °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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