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Technical Data Sheet

 

Re-issued August 2007

 

 

EPIKURE™ Curing Agent 8540-MU-60

 

 

Product Description

EPIKURE™ Curing Agent 8540-MU-60 is a modified polyamidoamine adduct supplied in a carefully selected blend of organic cosolvents for use, with EPI-REZ™ Resin 3520-WY-55, in the formulation of two-component, water reducible epoxy coatings. This product has a higher flash point and lower odor than EPIKURE Curing Agent 8536-MY-60. EPIKURE Curing Agent 8540-MU- 60 can be used as a direct pound-for-pound replacement for EPIKURE 8536-MY-60 Curing Agent in waterborne coatings formulations. Coatings based on this binder system possess good corrosion and water resistance. Waterborne coatings are easily formulated to VOC levels less than 2.5 pounds per gallon. Primer formulations exhibit strong adhesion to numerous types of metal substrates which make these systems ideal candidates to replace solvent-based epoxy-polyamides in general purpose applications.

 

Application Areas/Suggested Uses

  • High performance architectural coatings
  • General industrial primers and enamels
  • Ceramic tile coatings

 

Benefits

  • High flash point (110 °F) – combustible
  • Low odor (toluene-free)
  • Improved worker safety
  • Good corrosion and water resistance
  • High initial gloss and gloss retention during cure

 

Sales Specification

Property

Units

Value

Test Method/Standard

Amine value

mg/g

110-130

ASTM D2896

Color

Gardner

12

ASTM D1544

Solids

%m/m

59-61

ASTM D1259

Viscosity @ 25 °C

 

Z-Z3

ASTM D1545

 

 

 

 

 

Typical Properties

Property

Units

Value

Test Method/Standard

Equivalent weight

 

324

 

Density, Solution

 

8.2

 

Density, Solids, Calculated

 

9.0

 

 

 

 

 

 

 

General Information

EPIKURE Curing Agent 8540-MU-60 is recommended for use with solid epoxy resin dispersions like EPI-REZ Resin 3520-WY-55 (or EPI-REZ Resin 5522-WY-55). Table 1 compares the coatings performance of EPIKURE Curing Agent 8536-MY-60 with EPIKURE Curing Agent 8540-MU-60 in Hexion’ White Enamel Starting Point Formulation No. 1805.

 

Studies on the performance of coatings based on EPIKURE Curing Agent 8540-MU-60 show that it has comparable performance to coatings based on EPIKURE Curing Agent 8536-MY-60. The results of these studies are summarized in Table 1.

 

 

Performance Properties

 

Table 1/ Performance of White Enamels After Full Cure

 

 

EPIKURE 8536-MY-60/

EPI-REZ™ 3520-WY-55

EPIKURE 8540-MU-60/

EPI-REZ 3520-WY-55

Coatings test results

1.8

1.9

Dry film thickness on CRS, mils

40/8

44/32

Izod impact (Direct/Reverse)

5A

5A

Adhesion

Pass 1/8”

Pass 1/8”

Flexibility (Mandrel), in % elongation

32

32

Specular gloss (60°/20°)

84/58

92/72

Pencil hardness

 

 

24 hours

5 B

6 B

14 days

HB

HB

Film dry time, hr

 

 

Set to touch

1

2

Cotton-free

8.5

10.25

Thru-dry

9.5

10.25

MIBK resistance, min

5 (softens to 2B)

5 (softens to 2B)

MEK resistance (# double rubs)

23

31

Water resistance (Face blister rating)

 

 

Immersion at 25 °C, 600 hrs

none

none

Immersion at 60 °C, 240 hrs

6 MD

8 MD

Corrosion resistance

 

 

Salt fog test, 1400 hrs

 

 

Blisters at scribe

8 MD

8 D

Face blisters

8 MD

8 MD

Chemical spot test,1 48 hrs

 

 

10% NaOH (aq)

10

10

10% H2SO4 (aq)

9

9

DI water

10

10


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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