Safety Flooring
SDT™ Static Dissipative Tile
Specification Data
Material, Pattern and Colors
A composition of polyvinyl chloride resin, plasticizers, stabilizers, fillers, pigments and antistatic additive. Colors and pattern are dispersed uniformly throughout the thickness of the material. Color pigments are insoluble in water and resistant to cleaning agents and light.
Size (nominal)
12 in. x 12 in. (305 mm x 305 mm)
Gauge (nominal thickness)
1/8 in. (3.2 mm)
Limitations
SDT should not be used in the following areas:
■Munitions facilities.
■Facilities containing explosives or explosive materials.
■Areas requiring conductive flooring.
■Hospital operating rooms.
■Heavy industrial and exterior areas.
■Commercial kitchens and commercial food processing areas.
■Where pointed spikes such as golf or track shoes will be used.
■Where the floor will be subjected to unusually concentrated static or dynamic loads.
■Do not install SDT in areas subjected to excessive surface water, such as areas where frequent spills are common. Excessive and/or prolonged exposure to surface water may interfere with the bond of SDT to the subfloor. If a surface spill occurs, it must be contained and removed immediately.
Suitable for Application Over
■Concrete subfloors which are suspended, on grade or below grade.
■Suspended wood subfloor construction with approved wood underlayments, and a minimum of 18 in. (45.7 cm)
■
Unsuitable for Application Over
■Existing resilient flooring, ceramic, marble, terrazzo, metal or other nonporous substrates.
■Subfloors where excessive moisture or alkali is present.
■
■Lightweight aggregate concrete subfloors having a density of less than 90 lbs. per cu. ft. (1441 kg/m3) or cellular concrete having a plastic (wet) density less than 100 lbs. per cu. ft. (1602 kg/m3) [94 lbs. per cu. ft. (1506 kg/m3) dry weight], or concrete having a compressive strength of less than 3500 psi (24 MPa). Concrete slabs with heavy static and/or dynamic
loads should have higher design strengths and densities calculated to accommodate such loads.
Concrete curing agents, sealers, hardeners, or parting agents should be removed.
TECHNICAL DATA
Shipping Weight
63 lbs./carton (28.6 kg) – 45 tiles
Gloss (typical value)
60 degrees specular – approximately 20
Reference Specifications
ASTM F 1066
Class 2 – through pattern
Meets requirements for size, thickness, squareness, indentation, impact, dimensional stability, resistance to chemicals, and resistance to heat.
Static Load Limit
ASTM F 970
75 lbs./sq. in. (5.27 kg/cm2)
NOTE: Floors should be protected from
LEED eligible under
Credit EQ4.3 for
Indoor Air Quality.
Comparative Subjective Property Ratings
Durability – Very Good
Maintainability – Good
Resilience – Good
Subjective ratings (excellent, very good, good, fair) are in relation to other Armstrong™ commercial resilient floors. Ratings are not directly related to any one test. They are broadly based on tests and experience of Armstrong Research and Development under varying conditions and circumstances. These ratings should not be used for comparison to ratings used by other manufacturers to rank their own products.
Fire Test Data
ASTM E 648 Flooring Radiant Panel Critical Radiant Flux – 0.45 watts/cm2 or more, Class I
ASTM E 662 Smoke Chamber Specific Optical Smoke Density – 450 or less
Numerical flammability ratings alone may not define the performance of the product under actual fire conditions. These ratings are provided only for use in the selection of products to meet the specified limits.
Electrical Properties
Installed as a system using the required adhesive, grounding strips and polish, SDT yields the following electrical properties:
Resistance:
Point to point and point to ground: 106 to 109 ohms Static Generation:
ESD STM 97.2 (flooring in combination with footwear and a person)
at 40% R.H. with ESD shoes: <10 volts
at 12% R.H. with ESD shoes: <100 volts Static Decay:
Flooring in combination with footwear (ESD shoes) and a person (5000 volts to zero): 0.5 seconds avg. Fed. Test 101C, Method 4046 (5000 volts to zero): <0.5 seconds
INSTALLATION
Job Conditions
Subfloors/underlayments shall be dry, clean, and smooth. They shall be free from paint, varnish, solvents, wax, oil, existing adhesive residue, or other foreign matter.
For more detailed requirements of concrete, wood and metal subfloors, as well as wood and trowelable underlayments, refer to Armstrong Guaranteed Installation Systems manual,
Temperature shall be maintained at a minimum of 65° F (18° C) and a maximum of 100° F (38° C) for 48 hours prior to installation, during installation and 48 hours after completion. A minimum temperature of 55° F (13° C) shall be maintained thereafter. Condition all flooring materials and adhesives to room temperature at least 48 hours prior to starting installation. Protect all materials from the direct flow of heat from
Procedure
SDT must be installed as a system using SDT tile,
CAUTION: The Static Dissipative floor tile and the conductive adhesive contain a small amount of a material called a quaternary ammonium salt. This material may be both a skin and eye irritant for certain individuals. Therefore, direct contact with the adhesive should be avoided. Since the adhesive is
the floor tile, installers should wash their hands in a similar manner.
SDT Tile Removal
Safety glasses are recommended for removal of floor tile; individuals removing tile and/or adhesive should
wear cotton gloves and follow the general practices outlined in the current edition of the Resilient Floor Covering Institute (RFCI) publication Recommended Work Practices for the Removal of Resilient Floor Coverings. The tile should be disposed of in accordance with normal procedures for nonasbestos floor tile. If Armstrong SDT (an individual tile, for example) is broken, damaged, or in need of repair and requires replacement, it must be replaced with SDT in order
to continue to provide static dissipative properties.
MAINTENANCE
Note: See surface water instructions under “Limitations.”
Note: If electrical certification of an installation is required, do not perform any maintenance procedures until after that certification has been completed.
Initial Maintenance Immediately After Installation a. Sweep or vacuum thoroughly.
b. Damp mop with a dilute neutral detergent solution such as Armstrong
c. Apply a minimum of three coats of Armstrong
d. Do not wash or scrub the floor for at least four to five days after installation.
Preparation for Commercial Use
For specific, ongoing maintenance procedures see Armstrong Commercial Resilient Flooring Maintenance Recommendations booklet,
WARRANTIES
Armstrong warrants its regular (first quality) commercial floors and wall base to be free from manufacturing defects and warrants the installation integrity for five years from the date of purchase, if installed according to the Armstrong Installation/Maintenance Tip Sheet,
WARNING: EXISTING
These existing
Avoid creating dust. Inhalation of such dust is a cancer and respiratory tract hazard.
Smoking by individuals exposed to asbestos fibers greatly increases the risk of serious bodily harm.
Unless positively certain that the existing
See current edition of the Resilient Floor Covering Institute (RFCI) publication Recommended Work Practices for Removal of Resilient Floor Coverings for instructions on removing all resilient floor covering structures or contact your retailer or Armstrong World Industries, Inc. 1 800 233 3823.
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