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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 6008 Waterborne Epoxy Binder WD-510 3277

Description

Waterborne Epoxy Binder for Trowelable Floor Toppings
EPI-REZ™ Resin WD-510 / EPIKURE™ Curing Agent 3277

Introduction

This formulation illustrates the use of a water dispersible epoxy resin system as a binder for trowel-applied, decorative and protective floor toppings. Water is added to the resin/ converter mix to lower viscosity and impart non-stick troweling characteristics without thedisadvantages of odor, fire hazard and health hazard associated with many organic diluents and solvents. Extended pot life and water cleanup of tools are additional convenience features. Practical cure rates are achieved at substrate temperatures as low as 18 °C. The ceramic coated, quartz granule aggregate affords a wide selection of colors for decorative flooring applied in institutional buildings, schools, hospitals, restaurants, and offices.

 

Formula

Material

Supplier

Pounds

Gallons

 

Resin Portion

 

 

 

 

EPI-REZ Resin WD-510

Hexion

100.0

10.36

 

 

Total Resin Portion

100.0

10.36

 

 

 

 

 

 

Converter Portion

 

 

 

 

EPIKURE Curing Agent 3277

Hexion

46.0

5.74

 

 

Total Converter Portion

46.0

5.74

 

 

 

 

 

 

Water Portion

 

 

 

 

Tap water

 

65.6

7.88

 

 

Total Water Portion

65.6

7.88

 

 

 

 

 

 

Aggregate Portion

 

 

 

 

Colorquartz, 907 White, Grade 11

3M Company

69.0

21.25

 

Colorquartz, 402 Brown, Grade 28

3M Company

381.0

17.26

 

Colorquartz, 402 Brown, Grade 11

3M Company

102.0

4.62

 

 

Total Aggregate Portion

952.0

43.14

 

Compounding Instructions

The Colorquartz granules may be dry blended in a variety of colors. The ratio of coarse (Grade 11) to fine (Grade 28) particles was selected to provide optimum packing and troweling characteristics. Minor portions of white glass sands may be substituted for the ceramic coated granules to alter troweling characteristics, achieve depth effects or cost reductions.

 

Application Instructions

Old concrete substrates should be cleaned by either sandblasting or scarification to remove surface contaminants such as oils, fats, greases, waxes, curing compounds and paints. The laitance on new concrete can be removed with an acid etch followed by a thorough water flushing and scrubbing step. Standing water should be removed.

 

Prepare a dispersion of the resin/converter system in water and apply as a bond coat to insure maximum adhesion between the substrate and the topping. Application may be accomplished by brush, spray, roller, or squeegee at a coverage rate of 200 to 400 square feet per gallon. The primer is mixed by first blending the resin and converter portions in the proper ratio, then adding the designated quantity of water and agitating until a uniform creamy emulsion is formed. Power agitation is preferred. The concentration of water prescribed in this formulation has been chosen for optimum working characteristics and topping density. Gross deviation from this formula, particularly the use of higher water levels, should be discouraged.

 

Blend the resin and converter portions, then reduce with water using the same procedure as with the primer. Add the emulsified binder to the aggregate and blend in a paddle-type mortar mixer or other suitable equipment. Empty all of the freshly mixed topping onto the primed substrate and spread with a trowel to a uniform thickness. To develop maximum adhesion, the topping must be applied over the primer before the primer has gelled. Depending on temperature, this bond coat will remain “open” for approximately 1 to 5 hours.

 

Allow the topping to harden sufficiently to permit foot traffic (approximately 8 hours at 25 °C or 18 hours at 18 °C). Application of a low gloss sealer fills pores, which improves cleanability, and masks any imperfections such as lap joints, trowel marks and resin-rich areas.

 

Typical Handling Properties

Table 1 / Handling Properties

 

 

Units

Value

 

Resin/Converter/Water combining ratio

by weight

100:46 : 66

 

Aggregate/Binder ratio

by weight

4.5 : 1

 

Non-volatile content of binder, by weight

%

69

 

Viscosity of binder at 25 °C

 

 

 

5 rpm

cP

400

 

10 rpm

cP

310

 

20 rpm

cP

245

 

50 rpm

cP

210

 

Density of topping

lbs/gal

17.34

 

Expected Pot Life at 25 °C

 

 

 

1 pint of binder

min

45

 

1 gallon of aggregate filled mix

hrs

2

 

Typical Cured State Properties

Table 2 / Cured State Properties 1

 

 

Units

Value

 

Heat deflection temperature

°C

60

 

Tensile strength

psi

7,200

 

Tensile elongation at break

%

8.5

 

Tensile modulus, 106

psi

0.35

 

Flexural strength

psi

10,500

 

Flexural modulus, 106

psi

0.31

 

Izod impact, notch

ft•lbs/inch

0.46

 

Hardness

Shore D

82

 

 

 

 

 

Chemical resistance, weight gain

 

 

 

Water

%

0.18

 

5% Acetic Acid

%

0.65

 

Xylene

%

2.05

1 Determined on 1/8-inch thick castings of the waterless resin/converter system cured 2 weeks at 25 °C. When applied in thicknesses of 1/8 to 1/4-inch, the tensile bond strength of the cured topping exceeds the tensile strength of concrete when tested both dry and after 2 weeks water soak. However, long term field tests have not been conducted on water-thinned topping systems, and applicators should proceed cautiously until performance is confirmed in a variety of slab environments.

2  After 24 hours immersion

 

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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