CHEM-REZ  -  (EPOXY/AGGREGATE COATING)

PART 1)    GENERAL

1.01    WORK INCLUDED

Consists of all labor, materials, and equipment or any combination thereof to install Chem-Rez epoxy/aggregate resurfacing in accordance with drawings or specifications stated herein.

1.02    RELATED WORK

Installer shall examine project to determine suitability and report any deviations.  Installer shall coordinate work so as not to delay project, and shall request to be the last contractor on the project.

1.03    INSTALLER QUALIFICATION

The dealer shall assume responsibility that:

A)    The product shall be supervised and installed in a professional manner.

B)    The installation shall be performed by a trained installer.

1.04    DRAWINGS AND PRODUCT DATA

A)    The installer shall submit drawings and product data.  References and listing of completed installations may also be submitted.

B)    The installer will clearly indicate on plan layout all surfaces to be covered by epoxy/aggregate.

1.05    SAMPLES

The installer shall submit representative samples for approval prior to starting work.

PART 2)    PRODUCTS

2.01    ACCEPTABLE MANUFACTURERS

The approved manufacturer shall be Chemtron Manufacturing Ltd.

2.02    MATERIALS

Materials shall consist of Natural stone, a washed, sized, cleaned, dried, bagged, and pre-measured, hard-shell natural aggregate.  The stone shall be combined on the job site with Chem-Rez epoxy, a 100% solids epoxy specially formulated for resurfacing pavements.  The combination of both ingredients form a durable, high-strength, abrasion-resistant material which is porous and stain resistant.  The aggregate is bonded to the sub-surface.  No solvents or dilutants shall be used.

2.03    COMPONENTS

The epoxy mix shall be a two-component system which consists of two parts resin to one part catalyst by volume.

2.04    EPOXY MIX

When the resin and catalyst are blended, the mix shall have a viscosity of at least 2000 cps at 75^o F. The mix shall be transparent in the use state.

PART 3)    EXECUTION

3.01    INSTALLATION

A)    PREPARATION OF SUBSURFACE:

New concrete subsurfaces shall cure for 21 days prior to installation.  All subsurfaces shall be clean and free of dirt, dust, oil, grease, frost, and abnormal moisture content.  Subsurfaces shall be completely dry.  Loose concrete and some types of paint shall be removed prior to installation by grinding, chipping, or sanding.  Temperature of surface shall be above 60^o F when using Chem-Rez epoxy.  A coating of Chem-Rez Primer shall be applied over the concrete in colder climates.  The epoxy/aggregate installation shall be trowelled over wet Primer.  A membrane is required on wood balconies or wood floors.

B)    APPLICATION OF EPOXY/AGGREGATE:

Two parts Component A, resin, shall be mixed with one part Component B, curing agent, by volume.  Pour the premixed epoxy over the appropriate amount of Natural stone in a 6 cu. ft. cement mixer and tumble until all stones are coated with epoxy, approximately 5 - 10 minutes.  Dump and spread coated stones over subsurface and trowel to depth of 3/8 to 1/2 inch depending on stone size and subsurface irregularities.  Material shall be trowelled to a flat and level finish.  A 50 lb bag of stone plus 1 litre of Chem-Rez epoxy (pre-mixed) will cover approximately 8 to 10 sq ft.

3.02    CLEAN-UP

Project shall be clean and neat after installation.  Any remainder is the property of the installer; the installer will remove remainder promptly.

3.03    SECURITY

Project shall be protected to prevent disturbance of curing epoxy/aggregate until set, 6 to 10 hours, depending on ambient temperature.

3.04    PERFORMANCE

The Chem-Rez installation shall meet or exceed the performance/product specifications listed herein, plus:

1)  Freeze-thaw cycling; no effect
2)  Shrinkage; no effect
3)  Flammability; self-extinguishing
4)  Adhesion; 2000 psi

CHEM-REZ EPOXY PROPERTIES

PHYSICAL PROPERTIES  -  unmixed

COMPONENT A  -  RESIN:

COMPONENT B  -  CURING AGENT:

PHYSICAL PROPERTIES  -  mixed:

PRODUCT TESTING:

Hardness Shore    D⁹   75^o F               ASTM D-2240             80

Hardness Shore    A⁹ 150^o F               ASTM D-2240             82

Tensile Strength  PSI⁹ 75^o F               ASTM D-638               6,000+

Tensile Elongation %⁹ 75^o F               ASTM D-638               20

Adhesion, Tensile Shear PSI⁹ 75^o F    ASTM D-1002             2.000+

MIXING RATIO:

BY VOLUME:     2 Parts  "A"               BY WEIGHT:      2.40 lbs Part  "A"

1 Part    "B"                                          1.00 lbs Part  "B"

Mix 2 Parts "A" with 1 Part "B" for 2 to 3 minutes.  The Chem-Rez epoxy will turn cloudy or milky in color.  Let the mixed Chem-Rez epoxy stand for 3 to 5 minutes, until it turns clear.  Then give the Chem-Rez epoxy a final short mix of 2 minutes before using.

NOTE:   Mixed epoxies cannot be guaranteed to be UV or light stable.

Specifications subject to change at manufacturer's option without notice.

CAUTION:  Avoid contact with eyes, skin, or clothing.  Contact with epoxies causes eye injury and possible skin irritation.  The manufacturer recommends eye protection and the use of gloves.  Avoid prolonged or repeated breathing of vapor.  Use with adequate ventilation.  Do not take internally.