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SF 6009 General Purpose Topping 828 8 3277 and 3271

Description

General Purpose Topping and Patching Compound
EPON™ Resin 828 / HELOXY™ Modifier 8 / EPIKURE™ Curing Agent 3277 and 3271

Introduction

This trowelable floor topping formulation was designed for general interior use. Resistance to a broad spectrum of chemicals permits use in areas subjected to moderate exposure to alkalines, dilute acids, salt solutions, sugar solutions, greases, animal fats, oils and acidic foods processed from milk, citrus fruits, tomatoes, vinegar, etc. Prolonged exposure to strong solvents or strong corrosives is not recommended. An additional feature of this formulation is its 2:1 (by volume) resin:converter combining ratio.

 

Formula

Material

Supplier

Pounds

Gallons

 

Resin Portion

 

 

 

 

EPON Resin 828

Hexion

90.00

9.28

 

HELOXY Modifier 8

Hexion

10.00

1.35

 

 

Total Resin Portion

100.00

10.63

 

 

 

 

 

 

Converter Portion

 

 

 

 

EPIKURE Curing Agent 3277

Hexion

40.85

5.11

 

EPIKURE Curing Agent 3271

Hexion

2.15

0.25

 

 

Total Converter Portion

43.00

5.36

 

 

 

 

 

 

Aggregate Portion

 

 

 

 

Silica Sand 1

 

858.00

38.88

 

 

Total Filler Portion

858.00

38.88

1 Use dry sand specifically graded for good packing and troweling characteristics available in standard weight bags for convenience. This sieve analysis is one characteristic of sands that will trowel well:

 

U.S. Standard Sieve #                                                                        Percent Retained

           6                                                                                                              0

           8                                                                                                            0-10

          16                                                                                                         10-20

          30                                                                                                         25-35

          50                                                                                                         35-45

          100                                                                                                        5-15

 

 A 27:40:33 blend of Grade 2/Grade 1/Grade 0 silica sands from New Jersey Pulverizing Company is one example of an aggregate conforming tothis particle size gradation.

 

Application Instructions

Clean old concrete substrates by either sandblasting or scarifying (Tennant grinding machine) to remove surface contaminants such as oils, fats, greases, waxes, membrane coatings, paints, etc. The laitance of new concrete can be removed with an acid etch (muriatic acid) followed by flushing with water then scrubbing and drying.

 

To ensure maximum adhesion, a prime coat of the unfilled binder (resin and converter portions) should be applied to the concrete substrate by brush, roller, or squeegee. A coverage rate of 160 square feet/gallon (average film thickness of 10 mils) is suggested for highly porous substrates where heavier applications may be required. Then apply the topping system prior to gelation of the prime coat.

 

To prepare the topping system, blend the resin and converter portions in the designated ratio and mix until homogeneous. Power agitation is recommended, but manual stirring may be used if care is taken to accomplish thorough mixing. In either case, the sides and bottom of the mixing vessel should be scraped frequently to insure complete blending. Pour the blended binder over the sand and mix in a KOL Mixal, paddle- type mortar mixer or with a drill motor powered agitator.

 

Distribute the sand/binder mix to the desired thickness and finish with a trowel. This procedure provides additional working life by permitting the heat of reaction to dissipate from the thinner sections. This procedure may be modified for applying skid proof toppings by broadcasting sand or abrasive grains over the ungelled topping. The excess (unwetted) grains are swept off after the epoxy binder has hardened.

 

Typical Handling Properties

Table 1 / Handling Properties

 

 

Units

Value

 

Combining Ratio

 

 

 

Resin/Converter

by weight

100 : 43

 

 

by volume

2 : 1

 

Sand/binder

by weight

6 : 1

 

 

by volume

2.45 : 1

 

 

 

 

 

Binder Viscosity at 25 °C

cP

900

 

Gel Time, 100 grams binder at 25 °C

min

47

 

Gel Time, one pint binder

 

 

 

at 13 °C

min

50

 

at 25 °C

min

29

 

at 38 °C

min

14

 

Expected Working Life, one quart sand-filled topping

 

 

 

at 13 °C

min

240

 

at 38 °C

min

50

 

Set Time, 1/4 inch topping

 

 

 

at 13 °C

hrs

16

 

at 25 °C

hrs

7

 

at 38 °C

hrs

3.5

 

Typical Cured State Properties

Table 2 / Cured State Properties 1

 

 

Units

Value

 

Heat Deflection Temperature

°C

58

 

Tensile Strength

psi

7,700

 

Tensile Modulus 106

psi

0.46

 

Tensile Elongation

%

7.2

 

Flexural Strength

psi

11,800

 

Flexural Modulus 106

psi

0.35

 

Flexural Deflection

inch

>0.6

 

Izod Impact, notch

ft-lb/inch

0.48

 

Hardness

Shore D

85

 

 

 

 

 

Chemical Absorption, 2

 

 

 

Water

%

0.13

 

5% Acetic Acid

%

0.36

 

Xylene

%

3.46

 

 

 

 

 

Chemical Resistance ofSand-Filled Topping 3

 

 

 

Methanol

days

< 1

 

Methyl Ethyl Ketone

days

<1

 

Toluene

days

1

 

5% Detergent

days

>28

 

5% Bleach

days

>28

 

5% Acetic Acid

days

>28

 

25% Acetic Acid

days

3

 

25% Sulfuric Acid

days

>28

 

15% Hydrochloric Acid

days

>28

 

5% Citric Acid

days

>28

 

5% Lactic Acid

days

>28

 

5% Caustic

days

>28

 

Skydrol

days

>28

 

Oleic Acid

days

>28

1 Determined using 1/8 inch unfilled castings cured two weeks at 23 °C.

2 Weight gain after immersion for 24 hours at 23 °C.

3 Topping was cured 3 weeks at 23 °C; days without deterioration after continuous contact with fresh chemical.

 

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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