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SF 4014 Epoxy Adhesive 828 61 3125

Description

EPON™ Resin 828 / HELOXY™ Modifier 61 / EPIKURE™ Curing Agent 3125

 

 

Introduction

This solventless epoxy adhesive develops high peel strength to many difficult-to-bond substrates such as polyethylene, thermoplastic rubber and polyester films like Mylar and Celanar. Effective cure temperatures range from normal room temperature to 150 °C. A convenient 1:2 by volume combining ratio is provided.

 

Suggested Uses

  • Improved bonding to non polar thermoplastics such as polyolefins (flame or corona surface treatment recommended for best results), Thermoplastic Elastomers and Thermoplastic Polyesters. Adhesion is also good with metals, ceramics, glass, wood and polar thermoplastics such as polystyrene, ABS and polycarbonate.

 

Features

  • Enhanced adhesion to olefins, TPE’s and thermoplastic polyester such as PET and PBT
  • Convenient 1:2 mix ratio by volume
  • Large cure temperature range: Room Temperature to 150°C

 

Formula

Material

Supplier

Pounds

Gallons

 

Part A

 

 

 

 

EPON Resin 828

Hexion

80.0

8.25

 

HELOXY Modifier 61

Hexion

20.0

2.58

 

Silquest® A-172

OSI Specialties

3.0

0.35

 

 

Total A

103.0

11.18

 

 

 

 

 

 

Part B

 

 

 

 

EPIKURE Curing Agent 3125

Hexion

180.0

22.36

 

 

Total B

180.0

22.36

 

 

 

 

 

 

 

Total Part A & B

283.0

33.54

 

Typical Handling Properties

Table 1 / Handling Properties

 

 

Units

Value

 

Resin : Curing Agent mix ratio

 

by weight

by volume

4 : 7

1 : 2

 

Expected Working Life @ 25°C, 1 quart mass

hrs

3

 

Form / Viscosity

Part A @ 25°C

Part B @ 40°C

Blend @ 25°C

 

cP

cP

cP

 

200

10,000

6,900

 

Application Instructions

For optimum adhesion, polyester surfaces should be solvent wiped with a clean cloth prior to bonding. Apply the adhesive by brush, roll coating or knife coating. Polyolefin surfaces should be flame treated.

 

Cure Schedule

Room Temperature: 2-3 days @ 77°F. Handling strength is achieved overnight. Or Elevated Temperature: Adhesive can be heat cured to shorten cure time.  Maximum cure temperature should not exceed 300ºF.

 

Typical Cured State Properties

Table 2 / Adhesive Properties – Various Substrates 1

 

Test Property

Substrate

ASTM

Units

Value

 

T-Peel Strength @ 25°C, width

Cured 20 minutes @ 93°C

Cured 20 minutes @ 93°C

 

Cured 16 hours @ 25°C

 

Polyethylene to Aluminum

Polyethylene to Thermoplastic Rubber

Polypropylene to Aluminum

D-1876

 

lb/inch

 

lb/inch

lb/inch

 

23 -24

 

8.8

12

 

90° Peel Strength @ 25°C, width

Cured 20 minutes @ 93°C

Cured 20 minutes @ 150°C

 

Polyester to Aluminum

Polyester to Aluminum

 

 

lb/inch

lb/inch

 

9.1

8.9

                                                  ¹ Polyethylene and polypropylene adherends were 0.06 inch thick and flame treated. Thermoplastic rubber adherends were

                                                    0.125 inch thick and bonded as supplied. Aluminum adherends were acid etched 0.02 inch thick 2024-T alloy. Polyester

                                                   adherends were acetone wiped 0.01 inch thick Celanar film.

 

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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