DEX-O-TEX
DIV. OF CROSSFIELD
PRODUCTS CORP.
 

140 Valley Road
Roselle Park, NJ 07204
Tel: (908) 245-2800
Fax: (908) 245-2583

3000 E. Harcourt St.
Rancho Dominguez, CA 90221
Tel: (310) 886-9100
Fax: (310) 886-9119



1.) PRODUCT DESCRIPTION

A) Composition
Dex-O-Tex Posi-Tred "O" is a slip-retardant coating for use over concrete floors, stairs, ramps, etc. Posi-Tred "O" may also be used as the finish coating for Dex-O-Tex Cheminert or many other Dex-O-Tex composition floors. Posi-Tred "O" is a three-component material consisting of an epoxy resin, catalyst, and special metallic oxide slip-retardant aggregates. The three components are mixed together immediately prior to application, and the material is then troweled into place.

Dex-O-Tex Posi-Tred "O" is available in five different slip-retardant "profiles" ranging from very coarse to very fine. Very fine profile offers negligible slip resistance but good cleanability characteristics. Selection of profile to be used depends upon the degree of slip-retardance required, the cleaning characteristics desired, and the finished appearance appropriate for the area of use.

Dex-O-Tex Posi-Tred "O" is available in a range of standard colors. The material can be applied over concrete (new or existing), cerammic tiles, metal surfaces or Dex-O-Tex composition floors.

Formulated with environmental requirements in mind, Posi-Tred "O" contains no hydrocarbon solvents and thus meets all volatile organic substance regulations. Posi-Tred "O" has no significant odor during installation.

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

Dex-O-Tex Posi-Tred "O" has U.S. Dept. of Agriculture acceptance for use in federally inspected meat and poultry plants.

B) Typical Uses
Slip-retardant surfaces for pedestrian use in manufacturing operations, stairs, ramps, and walkways.

C) Advantages – Limitations

Advantages
1. Can be applied over a wide range of surfaces.
2. No significant odor during installation.
3. Resists most common chemical spillage.
4. Wide range of color and profile selection.

Limitations
1. Temperature during application must be 60°F (18°C) or greater.
2. Requires functioning vapor barrier beneath on-ground concrete floor to prevent upwards water vapor transmission which may result in loosening of epoxy floors or improper curing of epoxy materials.
3. If sub-surface cracks, material may reflect cracks to some degree.

2.) PHYSICAL CHARACTERISTICS AND TECHNICAL DATA

A) Surface Hardness
ASTM D-2240
Durometer "D" 85-90

B) Flexibility
ASTM D-1737
Passes 180° Bend
3/8" Mandrel

C) Adhesion (Cross-Hatch)
ASTM D-3359
No loosening

D) Thermal Shock Resistance
ASTM D-1211, No failure at 6 cycles
(30 mins. boiling water/30 mins. ice water)

E) Temperature Resistance
No measurable softening, deflection or integrity loss upon 8 hours immersion in boiling water (212° F)

F) Water Absorption
MIL-D-3134
Nil (7 day immersion)

G) Overall Thickness (Dry Film) to Top of Slip-Resistant Aggregate
Fine Profile
12 mils
Medium Profile
23 mils
Coarse Profile
54 mils
Very Coarse Profile
65 mils

H) Coefficient of Static Friction
Rubber Shoe Surface
(MIL-D-3134 Test Procedure)
Salt Water
Solution Dry
On Surface Surface
Fine Profile .60 .68
Medium Profile .60 .63
Coarse Profile .71 .76
Very Coarse .84 .86
Profile

I) Fire Retardance
ASTM E-648, FTMS 372, NFPA 253, NBSIR 75-950
Critical Radiant Heat Flux
>1,07 Watts/cm²

J) Resistance to Immersion
MIL-D-23003A(SH), Para. 4.6.11
SAE 10 Oil; Detergent Solution
No softening, loss of adhesion or other form of deterioration

3.) INSTALLATION

A) Prepare surfaces by removal of laitance, grease, foreign matter, etc.
B) Apply primer.
C) Mix and trowel-apply first grout/filler Posi-Tred. Allow to dry.
D) Apply second coat Posi-Tred. Introduce slip-resistant aggregate by trowel or broadcasting. Stipple with roller.

4.) PRODUCT AVAILABILITY

Dex-O-Tex Posi-Tred is available through Crossfield Products Corp. factories listed above and representatives in all major trading areas.

5.) MAINTENANCE

Dex-O-Tex Posi-Tred is best cleaned by using power scrubbing and wet pick-up vacuum. Worn spots in Posi-Tred can be patched or recoated.


SECTION 09670
SLIP-RETARDENT EPOXY FLOOR COATING
Dex-O-Tex Posi-Tred "O"

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 slip-retardant epoxy floor coating as selected on 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.)

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 slip-retardant epoxy coating floor coating specified herein.

C. Samples:
1) Submit 2-1/2" x 4" samples in color and profile as selected.

D. Material certificates signed by manufacturer certifying that the slip-retardant epoxy coating floor coating 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 floor coating materials including primers, slip-retardant aggregates, resins, hardening agents and finish coats, from a single manufacturer.

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 slip-retardant epoxy coating 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 epoxy floor coating.

PART 2.00 - PRODUCTS

2.01 MATERIALS
A. Slip-retardant epoxy coating shall be Dex-O-Tex Posi-Tred "O" as manufactured by Crossfield Products Corp., Rancho Dominguez, California; Roselle Park, New Jersey; Hinsdale, Illinois; Moss Point, Mississippi; Tacoma, Washington.

2.02 PROPERTIES
A. Colors: As indicated, or if not otherwise indicated, as selected by Architect from manufacturer's standard colors which must include white and off-white.

B. Physical Properties: Provide floor coating system that meets or exceeds the listed minimum physical property requirements when tested according to the referenced standard test method in parentheses.

Overall Thickness (Dry Film) to Top of Slip-Retardant Aggregate
Fine Profile
12 mils
Medium Profile
23 mils
Coarse Profile
54 mils
Very Coarse Profile
65 mils

Coefficient of Friction – Rubber Shoe Surface
See table on this screen.

Chemical Resistance
(ASTM D-1308)
(Spot-Test Open - 24 Hours)
Citric Acid (70%)
No Effect
Hydrochloric Acid (10%)
No Effect
Sulfuric Acid (50%)
No Effect
Sodium Hydroxide (5%)
No Effect
Lactic Acid
Discoloration
Beef and Bacon Fat
No Effect
Hydraulic Fluid
No Effect
Urine
No Effect

Resistance to Immersion
(MIL-D-23003A, Para. 4.6.11)
SAE 10 Oil; Detergent Solution
No softening, loss of adhesion or other form of deterioration

Fire Resistance
(ASTM E-162)
Flame Spread Index – 0
Smoke Deposited – 2 mg

PART 3.00 - EXECUTION

3.01 INSPECTION
A. Examine the areas and conditions where slip-retardant epoxy floor coating is to be installed and notify the Architect of conditions detrimental to the proper and timely completion of the work. Do not proceed with the work until unsatisfactory conditions have been corrected by the Contractor in conformance with the Contract Documents.

3.02 PREPARATION
A. Substrate: Perform preparation and cleaning procedures according to flooring manufacturer's instructions for particular substrate conditions involved, and as specified. Provide clean, dry, and neutral substrate for flooring application.

B. Concrete Surfaces: Shot-blast, acid etch or power scarify as required to obtain optimum bond of flooring to concrete. Remove sufficient material to provide a sound surface free of laitance, glaze, efflorescence, and any bond-inhibiting curing compounds or form release agents. Remove grease, oil, and other penetrating contaminates. Repair damaged and deteriorated concrete to acceptable condition. Leave surface free of dust, dirt, laitance, and efflorescence.

C. Materials: Mix epoxy primer and urethane coating components when required and prepare materials according to manufacturer's instructions.

3.03 APPLICATION
A. General: Apply each component of slip-retardant epoxy coating service floor coating system according to manufacturer's directions to produce a uniform, monolithic flooring surface.

B. Bond Coat: Apply epoxy bond coat over prepared substrate at manufacturer's recommended spreading rate by squeegee, trowel or spray.

3.04 CURING, PROTECTION AND CLEANING
A. Cure epoxy floor coating materials according to manufacturer's directions, taking care to prevent contamination during application stages and before completing curing process. Close application area for a minimum of 24 hours.