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On February 1, 2022, Hexion Holdings Corporation announced that it has completed the sale of its Coatings and Composite businesses, which includes the epoxy specialty resins and base epoxy resins and intermediates product lines, to Westlake Chemical Corporation. For epoxy coatings and composite product inquiries, please contact customer service at https://www.hexion.com/en-US/company/contact/ or Service@hexion.com.

SF 4009 Adhesive Formulations EPON™ and Epikure

Description

EPON™ Resins 8132, 828, 58005, 862, 58003 / EPIKURE™ Curing Agent 30055, 3125, 3163, and 3164

 

 

Introduction

These adhesive systems are designed for use in ambient or elevated temperature bonding of thermoplastic substrates such as Nylon 11, polyethylene terephthalate, polyvinyl chloride, and polyurethane.

 

Features

  • Good adhesion to thermoplastic substrates
  • Solvent-free, no volatile by-products

 

Mixing Instructions

Processing data are presented in Table 1. All of the starting point formulations discussed in this bulletin utilize Cab-O-Sil M-5 as the thixotropic agent (see Table 1). The Cab-O-Sil M-5 should be dispersed into a portion of the base resin (EPON Resin 8132, EPON Resin 828, EPON Resin 862) using a high shear dispersing technique. Add the remaining base resin and any other resins in the formulation to the resulting dispersion and mix, using conventional mixing equipment, until a uniform consistency is attained.

 

This formulation is a basic starting point and can be modified with other filler types, such as aluminum powder, talc, alumina, silica, wollastonite, or calcium carbonate. Addition of a sufficient quantity of filler can adjust the combining ratio to a convenient level. Modification with silane coupling agents improves bonds to concrete and glass. Pigment may be incorporated into either or both portions for the purpose of color-coding.

 

Processing Properties

Table 1 / Processing Properties

 

 

Formulation number

1

2

3

4

5

6

7

 

Resin, parts by weight (by volume)

 

 

 

 

 

 

 

 

EPON Resin 8132

75

(82)

100

(109)

100

(109)

100

(109)

 

EPON Resin 828

25

(26)

75

(77)

 

EPON Resin 58005

25

(28)

 

EPON Resin 862

75

(76)

 

EPON Resin 58003

25

(28)

 

PON Resin 58135

100

(105)

 

Cab-O-Sil M-5

2(1)

2(1)

2(1)

2(1)

2(1)

2(1)

2(1)

 

Resin viscosity @ 25 °C 1, P

 

 

 

 

 

 

 

 

@ 0.3 rpm

1360

 

@ 0.6 rpm

1320

873

 

@ 1.5 rpm

1300

436

828

 

@ 3 rpm

1290

421

805

 

@ 6 rpm

407

787

 

@ 12 rpm

37.2

396

 

@ 30 rpm

32.9

19.9

19.9

19.9

 

@ 60 rpm

30.6

18.7

18.7

18.7

 

Curing agent, parts by weight (by volume)

 

 

 

 

 

 

 

 

EPI-CURE Curing Agent 3055

42

(53)

42

(53)

46

(58)

42

(53)

 

EPI-CURE Curing Agent 3125

50

(62)

 

EPI-CURE Curing Agent 3163

138

(169)

 

EPI-CURE Curing Agent 3164

86

(106)

 

Curing Agent Viscosity @ 25 °C 1, P

2

2

2

2

330

1490

82

 

Gel Time @ 25 °C 2

 

 

 

 

 

 

 

 

Gel Time @ 25 °C 2 100 gram mass, min.

345

165

178

142

193

113

109

 

Dry Time, thin film Gel Time @ 25 °C 3, hr.

16

11

13

13

10

20.5

34.5

                                                                             1 Brookfield DV-II

                                                                            2 Shyodu Gel Timer

                                                                            3 Gardco Circular Drying Time Recorder, 0.2 mm film

 

Application Instructions

Surfaces to be bonded should be clean and free of dust, dirt, grease, or other extraneous material. Mix the adhesive components and apply immediately by spreading a thin film over the surface to be bonded. Maintain light pressure during cure to achieve the best bond. For the data presented, the surfaces were wiped with acetone or methyl ethyl ketone in order to remove dust, dirt, oils, etc.

 

The initial cure step may be carried out at room temperature or at elevated temperature. If initially cured at room temperature, an elevated temperature post cure should be evaluated depending on the requirements of the desired application. An elevated temperature cure will decrease the cure time significantly and will reduce the need for an additional post cure. Data are presented in Table 2 for both room and elevated temperature cure schedules. The cure schedule used was 30 minutes at 140 °C (280 °F).

 

Performance Properties

Table 2 / Typical Properties

 

Formulation number

1

2

3

4

5

6

7

 

Room Temperature Cure

 

 

 

 

 

 

 

 

Cure Schedule

7 days @ 25 °C (77 °F)

 

Lap shear strength 1, psi

 

 

 

 

 

 

 

 

CARILON® P-1000 2

 

 

 

 

 

 

 

 

Average

1012

884

950

832

691

621

499

 

Standard Deviation

193

216

189

166

43

81

33

 

Polyvinylchloride (PVC) 3

 

 

 

 

 

 

 

 

Average

691*

677*

754*

776

308

549

529

 

Standard Deviation

199

77

37

136

31

55

61

 

Polyurethane 4

 

 

 

 

 

 

 

 

Average

479

435

759

573

718

906

730

 

Standard Deviation

252

83

103

168

70

122

150

 

Polyethylene terephthalate (PET) 5

 

 

 

 

 

 

 

 

Average

255

254

487

506

525

800

632

 

Standard Deviation

68

29

139

324

81

75

52

 

Elevated Temperature Cure

 

 

 

 

 

 

 

 

Cure Schedule

30 minutes @ 140 °C (284 °F)

 

Lap shear strength 1, psi

 

 

 

 

 

 

 

 

CARILON® P-1000 2

 

 

 

 

 

 

 

 

Average

1396*

1401*

1359*

688

784

886

388

 

Standard Deviation

119

187

169

230

128

27

54

 

Polyvinylchloride (PVC) 3

 

 

 

 

 

 

 

 

Average

1216*

1281*

939*

951*

661*

969*

674*

 

Standard Deviation

346

193

434

220

111

123

98

 

Polyurethane 4

 

 

 

 

 

 

 

 

Average

319

550

385

407

307

583

429

 

Standard Deviation

75

38

124

112

49

103

77

 

Polyethylene terephthalate (PET) 5

 

 

 

 

 

 

 

 

Average

768

653

890

796

964

1244

848

 

Standard Deviation

125

160

117

113

79

106

44

 

Nylon 6

 

 

 

 

 

 

 

 

Average

434

414

444

650

725

466

 

Standard Deviation

105

168

67

188

27

57

 

Glass Transition Temperature 7, °C

60

86

75

70

50

45

40

                                                                            1 ASTM D 3163 96 AT 25 °C, Average of 5 Specimens, Solvent Wiped

                                                                            2 CARILON® P-1000 was supplied by Shell Chemical Company

                                                                            3 Polyvinylcholoride (PVC), Type 1, was supplied by McMaster-Carr Supply Company

                                                                            4 Polyurethane was supplied by McMaster-Carr Supply Company and had a Shore D Durometer reading of 75 and a tensile strength of 7500 psi

                                                                           5 Polyethylene terephthalate (PET) was supplied by McMaster-Carr Supply Company

                                                                          6 Nylon was supplied by Elf-Atochem as Rilsan® Polyamide 11 Resin

                                                                          7 Dynamic Mechanical Analysis, Rectangular Torsional Geometry, 1 °C/min

                                                 * All samples failed in tensile mode within the bond line.

 

Storage

Recommendations regarding storage conditions can be obtained by visiting our web site at www.hexion.com

 

 

General Information

These are starting formulations and are not proven in the user’s particular application but are simply meant to demonstrate the efficacy of the products and to assist in the development of the user’s own formulation.  It is the user’s responsibility to fully-test and qualify the formulation, along with the ingredients, methods, applications or equipment identified herein (“Information”), by the user’s knowledgeable formulator or scientist, and to determine the appropriate use conditions and legal restrictions, prior to use of any Information.

 

Safety, Storage & Handling

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

 

 

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

 

 
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