Coal Tar Epoxy Coating Product #209 is a two component 100% solids epoxy coating designed for applications to petroleum contaminated concrete, coating asphalt based surfaces, clean concrete, cement, and properly prepared steel.
No primer required.
No top-coating required.
Store in an area so as to bring the material to normal room temperature before using. Continuous storage should be between 60 and 90 degree F. Low temperatures or great temperature fluctuations may cause product crystallization.
The most suitable surface preparation would be a fine brush blast (shot blast) to remove all laitance and provide a suitable profile. All dirt, foreign contaminants, oil, and laitance must be removed to assure a trouble free bond to the substrate. A test should be made to determine that the concrete is dry; this can be done by placing a 4'X4' plastic sheet on the substrate and taping down the edges. If after 24 hours, the substrate is still dry below the plastic sheet, then the substrate is dry enough to start coating. The plastic sheet testing is also a good method to determine if any hydrostatic pressure problems exist that may later cause lifting. For more information consult the Surface Preparation Guide.
Product has a mix ratio of 9.0# (1 gallon) part A to 9.0# (1 gallon) part B. Mix equal volumes of the two components with a jiffy mixer or other suitable equipment until the material is thoroughly mixed. After mixing, transfer the mixed material to another pail (the transfer pail) is now ready to be applied. Improper mixing may result in product failure.
A primer is not necessary, however, if the substrate is excessively porous, a suitable primer can be used to help eliminate any surface defects resulting from air release from the substrate.
The mixed material can be applied by brush or roller. However, the material can also be applied by a suitable serrated squeegee and then back rolled as long as the appropriate thickness recommendations are maintained. Maintain temperatures within the recommended range during the application and curing process. If concrete conditions or over aggressive mixing causes air entrapment, then an air release roller tool should be used prior to the coating tacking off to remove the air entrapped in the coating.
If you opt to recoat or topcoat, you must first be sure that the coating has tacked off before recoating. However, all previous coats should be de-glossed to insure a trouble free bond prior to application of recoats or topcoats. Always remember that colder temperatures will require more cure time for the product before recoating or top-coating can commence. Before recoating or top-coating, check the coating to insure no epoxy blushes were developed (a whitish, greasy film or de-glossing). If a blush is present, it must be removed prior to top-coating or recoating. For top-coating with the material just topcoat. However, if top-coating with other colored topcoats, multiple coats will be required to prevent bleed-through. Contact Epoxy.com Technical Support for further details.
Use Xylene
Caution! Some cleaners may affect the color of the floor installed. Test each cleaner in a small area, utilizing your cleaning technique. If no ill effects are noted, you can continue to clean with the product and process tested.
| SOLIDS BY WEIGHT | 100% |
| SOLIDS BY VOLUME | 100% |
| VOLATILE ORGANIC CONTENT | zero pounds per gallon |
| STANDARD COLORS | This product is available in black only |
| RECOMMENDED THICKNESS | 12 mils |
| COVERAGE PER GALLON | 130-140 square feet per gallon @ 12 mils |
| PACKAGING INFORMATION |
2 gallons kit (18.0 pounds net approximately) 10 gallons kit (90 pounds net approximately) (volumes and weights approximate) |
| MIX RATIO | 9.0 pounds (1 gallon) part A to 9.0 pounds (1 gallon) part B (volumes and weight approximate) |
| SHELF LIFE | 1 year in unopened containers |
| ABRASION RESISTANCE | Taber abraser CS-17 callibrase wheel with 1000 gram total load and 500 cycles= 32 mg loss. |
| VISCOSITY | Part A= 1800-2500 cps (typical) |
| DOT CLASSIFICATIONS |
Part A °not regulated° Part B °CORROSIVE LIQUID N.O.S., 8, UN1760, PGIII° |
| FLEXURAL STRENGTH | 7,346 psi @ ASTM D790 |
| COMPRESSIVE STRENGTH | 6,509 psi @ ASTM D695 |
| TENSILE STRENGTH | 5,128 psi @ ASTM D638 |
| ULTIMATE ELONGATION | 7.4% |
| GARDNER VARIABLE IMPACTOR | 50 inch pounds direct- passed |
| ADHESION | 420 psi @ elcometer (concrete failure, no delamination) |
| WEATHERING | Good stability with some discoloration |
| HARDNESS | Shore D= 81 |
CURE SCHEDULE (70°) | |
| Pot Life (2 gallon volume) | 20-30 minutes |
| Tack Free (dry to touch) | 6-8 hours |
| Recoat or Topcoat | 7-9 hours |
| Light Foot Traffic | 14-16 hours |
| Full Cure (heavy traffic) | 2-7 days |
| Application Temperature | 55-90 degrees F |
CHEMICAL RESISTANCE | |
| REAGENT | RATING |
| xylene | C |
| 1,1,1 trichloroethane | C |
| MEK | A |
| methanol | A |
| ethyl alcohol | C |
| skydrol | A |
| 10% sodium hydroxide | D |
| 50% sodium hydroxide | C |
| 10% sulfuric acid | B |
| 70% sulfuric acid | A |
| 10% HC1 (aq) | C |
| 5% acetic acid | A |
| Rating key: A - not recommended B - 2 hour term splash spill C - 8 hour term splash spill D - 72 hour immersion, E - long term immersion. NOTE: extensive chemical resistance information from: Epoxy.com Technical Support. | |