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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 6000 Epoxy Terrazzo Flooring 828 505 and 3295

Description

EPON™ Resin 828 / HELOXY™ Modifiers 505 and 8 / EPIKURE™ Curing Agent 3295

Introduction

A premium quality, flexibilized, thin-set terrazzo formulation offering all of the advantages associated with epoxy terrazzo as well as several improved features.

 

Features

  • Permanent, high strength bonds to substrate
  • Light weight at 1/4” thickness is important consideration in high rise buildings
  • Can be ground after overnight cure, eliminating the 4 to 7 day delay in finishing cementitious terrazzo
  • Matrix polishes to high gloss and resists staining more than cementitious terrazzo
  • Tough, flexible matrix system – 18% ultimate tensile elongation
  • No non-reactive, migrating extenders or diluents used
  • High impact strength – >16 ft•lb
  • Good air release characteristics
  • Good color retention for epoxy compound
 

 

Formula

Material

Supplier

Pounds

Gallons

 

Resin Portion

 

 

 

 

EPON Resin 828

Hexion

60

6.22

 

HELOXY Modifier 505

Hexion

35

4.12

 

HELOXY Modifier 8

Hexion

5

0.67

 

Titanium Dioxide R-101

Du Pont Co.

5

0.14

 

DC-200 Fluid,

100 centistokes grade

Dow-Corning Corp.

0.007

0.001

 

 

Total Resin Portion

105.007

11.151

 

 

 

 

 

 

Converter Portion

 

 

 

 

EPIKURE Curing Agent 3295

Hexion

18

2.17

 

 

Total Converter Portion

18

2.17

 

 

 

 

 

 

Filler Portion

 

 

 

 

No. 40-200 Marble Dust

Georgia Marble Co.

185

8.19

 

Thin-Set Marble Chip Blend

#0 & #1 sizes Georgia Marble Co.

369

16.33

 

 

Total Filler Portion

554

24.52

 

Typical Handling Properties

Table 1 / Handling Properties

 

 

Units

Value

 

Denisty, Filled

lbs/gal

17.91

 

Density, Unfilled

lbs/gal

9.26

 

Viscosity at 25 °C, unfilled

cP

880

 

Expected Working Life:

 

 

 

1 quart filled at 25 °C

min

100

 

100 grams unfilled at 25 °C, minutes

min

34

 

Combining Ratio (Resin Portion/Converter Portion)

by weight

5.8 : 1

 

 

by volume

5.1 : 1

 

Compounding

The titanium dioxide or other selected pigment should be milled or sheared into a portion of the EPON Resin 828 using a 3-roll mill, Cowles Dissolver, or other suitable grinding equipment. This color paste is then combined with the remaining components of the resin portion and thoroughly blended. A drill press, Lighting Mixer or other blender can be used to provide a uniform mix.

 

Terrazzo mix designed for placement on vertical areas such as coves and risers must be made thixotropic to prevent sagging during cure. Cab-O-Sil M-5 silica (Cabot Corp.) in the amount of 3 to 6 phr can be incorporated either at the job site or it can be compounded into the resin portion beforehand. If the latter course is taken, the Cab-O-Sil should be mixed into the resin portion at 2400 RPM or faster for a period of 30-60 minutes to assure long term thixotropic stability.

 

The marble chips can be purchased in standard color and size blends or can be custom blended. The chips should be water washed to remove dust (especially when dark colors are used) and dried. The dust, if not removed, can color the pigmented matrix.

 

Application Instructions

The surface on which this compound is to be applied must be sound and free from dirt, grease, oil, wax, paint, laitance of new concrete and other contaminants. Concrete substrates can be prepared by either acid etching, scarifying, or sandblasting. If the terrazzo is to be applied over wooden floors, old paint and dirt are best removed by sanding down to clean wood. Plywood sheets should be firmly anchored over strip wood floors to minimize flexing of

individual boards.

 

Metal divider strips are usually bonded to the floor in a block pattern to aid in screening the terrazzo mix to the proper thickness. In the cove area, one layer of glass cloth wetted with the unfilled binder portion of this formulation is lapped over the junction of floor and wall to prevent cracking due to building movement. A coating of a clear binder portion is then applied to the entire floor and cove area to assure good wetting of the substrate. This prime coat can be applied by brush, roller, or squeegee.

 

The terrazzo mix is prepared by first blending the resin and converter portions of this formulation in the designated combining ratio. A propeller shaped agitator powered by a drill motor is preferred to assure a uniform blend. The marble dust and chips are then mixed in with the aid of a small concrete mixer or KOL Mixal. Hand mixing in a wheelbarrow is sometimes used. CabO-Sil is often added at the job site to provide the degree of thixotropy required to hold the cove mix in place during cure.

 

The mix is then screened and troweled onto the floor to the proper thickness (usually 3/8”) before the prime coat has cured. Grinding is accomplished with conventional terrazzo equipment, usually 16 to 48 hours after placement of the wet mix. Grinding proceeds more slowly with increasing cure time.

 

A grout coat is applied after the initial grinding to fill in any pin-holes, bubbles, and other imperfections exposed by the grinding. The pigmented and marble dust filled portion of this coat is normally applied by means of a rubber squeegee. The final grinding and polishing is then accomplished after the grout coat has cured overnight.

 

A thin seal coat of a moisture curing polyurethane or acrylic lacquer followed by a wax completes the operation. The moisture curing polyurethane imparts notably improved mar resistance in comparison to the acrylic lacquer.

 

Typical Cured State Properties

Table 2 / Properties of Unfilled Epoxy Binder 1

 

 

Units

Value

 

Hardness

Shore D

77

 

Ultimate Tensile Strength

psi

5,200

 

Tensile Elongation

%

18

 

Ultimate Flexural Strength

psi

8,500

 

Initial Flexural Modulus

psi

0.22 x 106

 

Ultimate Compressive Strength

psi

23,000

 

Linear Shrinkage 1

in./in.

0.0052

 

Tabor Abrasion, Ioss per 1000 rev.

mg

56.0

 

Coefficient of Linear Thermal Expansion

 

 

 

Temp. range: -25 to 60 °C

in./in./ °C

117 x 106

 

Chemical Resistance 3

 

 

 

Distilled Water

%

0.33

 

10% Hydrochloric Acid

%

0.43

 

5% Acetic Acid

%

1.16

 

30% Sulfuric Acid

%

0.64

 

10% Sodium Hydroxide

%

0.29

 

Isopropanol

%

1.09

 

Ethanol

%

4.14

 

Mineral Oil

%

0.05

 

1% Detergent Solution

%

0.37

                                                  1 Cure Schedule - 20 hours at 25 °C plus 4 hours at 70 °C

                                                  2 Test Method ERF 12-64, mold size #1 (195 ml.).

                                                  3 Percent Weight Gained after 7 days immersion

 

Properties of Terrazzo

Table 3 / Properties of Terrazzo

 

 

Units

Value

 

Impact Resistance, Falling Ball

 

No failure at 16 ft•lb

 

Flexural Strength

psi

3,500

 

Flammability, ASTM D-635

 

Self-extinguishing

 

Tabor Abrasion, loss per 1000 rev 1

mg

97.9

 

Tensile Bond Strength, concrete substrate 2

psi

>300

 

Coeffient of Linear Thermal Expansion

 

 

 

Temp. range: -25 to 60 °C

in./in/ °C

49 x 106

 

Resistance to Elevated Temperatures

 

 

 

Per MIL D 3134F, Section 3.10

No slip of flow at 70 °C

                                                  1 CS 10 Wheel Loaded with 1,000 gm weight.

                                                  2 100% concrete failure.

 

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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