1.) PRODUCT DESCRIPTION

A) Composition
Dex-O-Tex Cheminert "K" is a troweled, jointless floor. Its base is a two-component epoxy resin formulation incorporating suitable chemical resistant aggregates. It can incorporate an integral sanitary coved base. Dex-O-Tex Cheminert "K" is resistant to a wide range of acids, solvents and food fats. Dex-O-Tex Cheminert can be installed over concrete, metal or ceramic surfaces. This material is customarily applied to a thickness of 1/8"-1/4" (3,17 mm-6,35 mm).

Dex-O-Tex Cheminert "K" can be furnished either with a clear top coat finish, a pigmented top coat finish (in various slip-retardant "profiles"), or with no separate finish.

Formulated with environmental requirements in mind, this product meets all known State volatile organic substance regulations.

For applications over existing surfaces where temperatures are low (i.e. below 60°F) or surfaces are wet, use Dex-O-Tex Cold-Setting Cheminert "K".

Colors available are grey, green, red, tan, blue or black. The material is also available in multi-colored decorative aggregate applications known as Dex-O-Tex Terracolor. The product is also available in a static-conductive and non-sparking type known as Dex-O-Tex Conductive Cheminert.

As an option, Dex-O-Tex Cheminert is available in the Dexcide series which incorporates antimicrobial chemistry to control the growth of microorganisms (bacteria, fungi, etc.) on the floor surface.

Dex-O-Tex Cheminert is USDA accepted, FDA compliant, and meets all state VOC requirements.

B) Typical Uses
Kitchens, laboratories, containment areas, pharmaceutical manufacturing, animal housing, food processing, etc.

C) Advantages – Limitations

Advantages
1. Monolithic: Can incorporate integral cove base.
2. Resistant to many chemicals.
3. Produces a rapidly installed, seamless floor at moderate cost.
4. Installed by qualified, trained contractors.
5. High compression strength.

Limitations
1. If sub-surface cracks move due to continued thermal flexing or building settlement, Cheminert "K" may reflect those cracks to some degree.
2. Water vapor transmission upwards through on-ground concrete slabs may result in loosening of epoxy floors or improper curing of epoxy materials.

2.) PHYSICAL CHARACTERISTICS AND TECHNICAL DATA

A) Compressive Strength
ASTM C-579
11,000 psi

B) Indentation Characteristics
(Impacted load)

MIL-D-3134, Para. 4.7.3 (2 lb. ball dropped twice from 8 ft. height)
No chipping, cracking, loss of
adhesion. Indentation .024"

Gardner Impact Tester, 160 in./lbs.
No cracking or detachment.
Indentation 0.014"

C) Tensile Strength
ASTM C-307
1,643 psi

D) Flexural Strength
ASTM C-580
4,300 psi

E) Bond Strength
A.C.I. #403
>400 psi
(100% concrete failure)

F) Abrasion Resistance
ASTM D-1044
0.0 gr.

G) Flammability
ASTM D-635
Self-extinguishing by
this test (0.6")

ASTM E-648, FTMS 372, NFPA 253, NBSIR 75-950
Critical Radiant Heat Flux
>1.07 Watts/cm²

H) Water Absorption
MIL-D-3134
0.3%

I) Surface Hardness
ASTM D-2240
85.5 Shore "D"

3.) INSTALLATION

A) Preparation
Prepare surfaces by careful and thorough removal of laitance, grease, bond inhibiting concrete curing sealers and other foreign matter.

B) Primer
Apply brush or trowel a thin coating of Cheminert "K" Bondcoat.

C) Floor Basecoat
Trowel apply resin and aggregate mixture to specified thickness.

D) Sealer (optional)
For maximum cleanability and appearance, clear or pigmented top coatings may be applied.

Note: Suitable drains, floor cleanouts, etc., are available for most major drain manufacturers.

4.) PRODUCT AVAILABILITY

Crossfield Products Corp. maintains offices and/or factories at all addresses listed above. Qualified Dex-O-Tex contractors are established in all major trading areas in the United States, Canada and various European and Far Eastern nations.

5.) MAINTENANCE

Regular scrubbing with ordinary detergents and water flushes in between. During very high temperature spillages or spillages of potentially damaging chemicals, dilute spillages with cold water.

6.) SPECIFICATION ASSISTANCE

Consult Crossfield Products Corp. for specification assistance and detailing. This consultation is highly recommended prior to specification.



SECTION 09670
EPOXY RESIN COMPOSITION FLOORING
Dex-O-Tex Cheminert K

PART 1.00 - GENERAL

1.01 GENERAL REQUIREMENTS
A. Work of this Section, as shown or specified, shall be in accordance with the requirements of the Contract Documents.

1.02 WORK INCLUDED
A. Work of this Section includes all labor, materials, equipment and services necessary to complete the epoxy resin composition flooring and integral base as scheduled on the drawings and/or specified herein.

1.03 RELATED WORK
A. Concrete - Section 03300.
(Note to Specifier: Concrete should be either water cured or cured using sodium silicate curing compounds only. Other types of curing compounds are generally not acceptable. Concrete should be cured for a minimum of 28 days. On grade floors should have functioning vapor retarder beneath slab.)

B. Floor drains - Division 15.
(Note to Specifier: Floor drains, clean-outs, etc., should be of the "floor-flange" type as manufactured for use with composition floors by most major drain manufacturers.)

1.04 SUBMITTALS
A. General: Submit the following in accordance with Conditions of Contract and Division 1 Specification Sections.

B. Product Data: Submit manufacturer's technical data, application instructions and general recommendations for the epoxy resin composition flooring specified herein.

C. Samples for initial selection purposes in form of manufacturer's color charts showing full range of colors and finishes available.
1. Submit 2-1/2" x 4" samples of color chips from color chart selection designated by the Architect.

D. Material certificates signed by manufacturer certifying that the epoxy resin composition flooring complies with requirements specified herein.

E. Maintenance Instructions: Submit manufacturer's written instructions for recommended maintenance practices.

1.05 QUALITY ASSURANCE
A. Installer Qualifications: Engage an experienced Installer or applicator who has specialized in installing resinous flooring types similar to that required for this Project and who is acceptable to manufacturer of primary materials.

B. Single-Source Responsibility: Obtain epoxy resin composition flooring materials, including primers, resins, hardening agents, and finish or sealing coats, from a single manufacturer.

C. Qualified Materials: Request for material approvals for any products other than the specified products must be submitted to the architect two weeks prior to the bid, including complete application specification, physical characteristics, and chemical resistance data. Any request after this date will not be accepted. Failure of performance requires immediate removal and replacement of unapproved substituted material with those originally specified at no cost to the owner, architect, construction manager, or general contractor.

1.06 DELIVERY, STORAGE AND HANDLING
A. Deliver materials in original packages and containers with seals unbroken and bearing manufacturer's labels containing brand name and directions for storage and mixing with other components.

B. Store materials to comply with manufacturer's directions to prevent deterioration from moisture, heat, cold, direct sunlight, or other detrimental effects.

1.07 PROJECT CONDITIONS
A. Environmental Conditions: Comply with epoxy resin composition flooring manufacturer's directions for maintenance of ambient and substrate temperature, moisture, humidity, ventilation, and other conditions required to execute and protect Work.

B. Lighting: Permanent lighting will be in place and working before installing resinous flooring.

PART 2.00 - PRODUCTS

2.01 MATERIALS
A. Troweled epoxy resin composition flooring shall be Dex-O-Tex Cheminert "K" with Posi-Tred "O" top finish as manufactured by Crossfield Products Corp.; Rancho Dominguez, California; Roselle Park, New Jersey and Burr Ridge, Illinois.