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Technical Data Sheet

 

Re-issued August 2001

 

 

EPIKURE™ Curing Agent 3271

 

 

Product Description

EPIKURE™ Curing Agent 3271 is a modified aliphatic amine, low to moderate viscosity, fastsetting, high-temperature resistant epoxy curing agent.

 

 

Application Areas/Suggested Uses

  • Fast-setting plastic and metal adhesives
  • Tooling gel coats
  • Synthetic flooring
  • Accelerators for EPIKURE 3000 and 3100 series
 

 

Benefits

  • Low viscosity
  • Fast-setting
  • High heat distortion temperatures
  • Modest blush resistance
  • Excellent chemical resistance

 

Sales Specification

Property

Units

Value

Test Method/Standard

Amine as KOH

mg/g

950 – 1,050

ASTM D2896

Viscosity at 25°C

cP

100 – 200

ASTM D2196

Color

Gardner

6 max.

ASTM D1544

 

 

 

 

 

Typical Properties

Property

Units

Value

Test Method/Standard

Equivalent weight, approx.

 

34

 

Pounds/gallon @ 25 °C

lbs/gal

8.5

ASTM D1475

Flash Point

°F

104

ASTM D3278

Mix Ratio, 190 EEW epoxy

phr

18

 

Apperance

 

Clear and free of foreign particles

 

 

 

 

 

 

 

Performance Properties

 

Table 1 / Properties of EPIKURE Curing Agent 3271

 

 

Method

Units

A

EPON™ Resin 828

 

pbw

100

EPIKURE Curing Agent 3271

 

pbw

18

 

 

 

 

Handling Properties @ 25°C

 

 

 

Viscosity

 

cP

5,500

Gel Time, 100 gram mass

 

minutes

11-14

Peak Exotherm at 25°C

 

?°C

216

 

 

 

 

Cure Schedule

 

hr/°C

Gelled at RT +

2/100

 

 

 

 

Cured State Properties 1

 

 

 

Heat Deflection Temperature

ASTM D648

°C

111

Tensile Strength

ASTM D638

psi

11,500

Tensile Elongation at break

 

%

6.5

Flexural Strength

ASTM D790

psi

18,000

Izod impact, notched

ASTM D256

ft.•lb./in.

0.64

Hardness

 

Shore D

93

Weight loss, after 24 hrs at 100°C

 

%

0.41

 

 

 

 

Chemical Resistance

 

 

 

Water

 

%

0.5

10% H2SO4

 

%

0.4

10% Acetic Acid

 

%

5.5

10% NaOH

 

%

0.4

Xylene

 

%

0.1

1,1,-trichloroethane

 

%

1.5

 

 

 

 

Electrical Properties

 

 

 

Dielectric constant, 106 MHz

ASTM D150

 

4.26

Volume resistivity, at 25 °C

 

ohm•cm

1.4 x 1015

 

 

 

 

 

 

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.

 

 

To preserve product quality and prevent discoloration, it is recommended that a nitrogen blanket be maintained on the headspace of an opened container and that storage / handling temperatures in excess of 50°C (122°F) be avoided. Spillage around the opening of the container from dispensing operations will form a crystalline residue. This residue is not soluble in the curing agent nor the resin, and certain measures should be taken to prevent it from contaminating the remaining contents of the container. The crystalline residue should be removed with a warm damp wash cloth PRIOR to re-opening the container for dispensing.

 

EPIKURE 3271 Curing Agent should be kept in tightly closed containers in a cool, dry place. Product will absorb moisture and carbon dioxide which may affect viscosity or create foaming when reacted with epoxy resins. These products will have a minimum shelf life of one year if properly stored in unopened containers.

 

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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