Knowde Enhanced TDS
Identification & Functionality
- Technologies
- Product Families
Features & Benefits
- Ready-to-Use Product Features
Applications & Uses
- Markets
- Limitations
- For best results use a high quality 3/8” nap roller.
- Slab on grade requires moisture barrier.
- Substrate temperature must be 5°F above dew point
- All new concrete must be cured for at least 30 days prior to application.
- Color may vary slightly from batch to batch.
- Always apply a test patch of the entire system prior to using to determine the suitability and adhesion characteristics.
- Mix Ratio
1 part A to 1 part B by volume.
- Mixing & Application Instructions
Product Storage: Store product at normal room temperature. Continuous storage should be between 60 and 90 degree F.
Surface Preparation: Surface preparation will vary according to the type of complete system to be applied. Make certain that the substrate where the EP820 is to be applied is clean, sound and free of all laitance, dirt, dust, oil, grease, or foreign contaminants. Make certain that the floor is completely dry before application. It is often undesirable to shot blast a petroleum contaminated concrete surface unless the applicator is prepared to steam and solvent clean the area. Shot blasting tends to open oil filled pores that will be detrimental to the application process. The method of cleaning an oil soaked floor is best determined at the job location. However, solvent cleaning, steam cleaning, and water emulsion cleaners can all be considered. A test should be made to determine that the concrete is dry; this can be done by placing a 4' x 4' 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 disbonding.
Product Mixing: This product has a one to one mix ratio by volume, merely mix equal volumes such as 1 gallon of part A to 1 gallon of part B. After the two parts are combined, mix well with slow speed mixing equipment such as a jiffy mixer until streak free. Improper mixing may result in product failure.
Product Application: We recommend one coat of EP820 followed by one coat of EP143/144 and then two additional coats of EP320/321 in the same color as the EP143/144. Due to the vastly varying contamination parameters, it is recommended that the applicator both check the adhesion of this product to the substrate as well as a thorough evaluation of the proposed intermediate and topcoat selections. Petroleum based oils have a tendency to migrate upward through newly placed coatings and could cause disbonding if all preceding coats are not inspected prior to topcoating. Clean all previous coatings as necessary. This coating should not be used until a representative sample patch has been placed and thoroughly evaluated for suitability. Make certain that the floor temperature and air temperature is between 55 and 90 degrees Fahrenheit. Preferably, the relative humidity should be below 90%. This product should be applied by roller or brush at five to eight mil thickness when wet. Too thick of an application may result in product failure.
Recoat or Topcoating: After applying the EP820 and the coating has cured sufficiently, the applicator can then proceed with the EP143/144, EP321, application. Allow sufficient time between all subsequent coatings; and remember, as temperatures become lower all products will require additional time to cure. Read the individual technical data sheets for each product before proceeding. If different topcoats are desired, contact your representative for application details before proceeding.
Cleanup: Use xylol.
Floor Cleaning: 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.
Restrictions: Restrict the use of the floor to light traffic and non-harsh chemicals until the coating is fully cured (see technical data under full cure). It is best to let the floor remain dry for the full cure cycle.
- Primer
None required.
- Recommended For
Recommended for petroleum oil contaminated substrates. However, this product is not intended for use over vegetable oil, animal fat or synthetic oil contaminated concrete. This product can withstand exposure to many common solvents and chemicals.
- Top Coat
It is optional, we recommend one (1) coat of EP143/144 followed by two (2) coats of EP321 in the same color as the EP143/144. Many other products are suitable as topcoats.
Properties
- Color
- Typical Properties
- Chemical Resistance
Acetic Acid 5% A Xylene B Toluene B 1,1,1 trichloroethane A MEK A Gasoline B 10% Sodium Hydroxide E 50% Sodium Hydroxide D 10% Sulfuric Acid C 10% Hydrochloric Acid C 20% Nitric Acid A Ethylene Glycol C 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.
| Value | Units | Test Method / Conditions | |
| Abrasion Resisitance (Taber abraser CS-17 calibrase wheel with 1000 gram total load and 500 cycles) | 37.0 | mg loss | - |
| Coverage (5 - 8 mils Wet Thickness) | 200 - 320 | square feet per gallon | - |
| Finish Characteristics (40 - 60 at 60 degrees, Erichsen Glossmeter) | Satin Gloss | - | - |
| Flexibility | No cracks on a 1/8" Mandrel | - | - |
| Full Cure (Heavy Traffic, 70°F) | 2 - 7 | days | - |
| Impact Resistance (Gardner Impact, Direct, Passed) | 50.0 | inch pounds | - |
| Light Foot Traffic (70°F) | 16 - 24 | hours | - |
| Pot Life (2 Gallon Volume, 70°F) | 2 - 4 | hours | - |
| Recoat or Topcoat (70°F) | 4 - 8 | hours | - |
| Recommended Film Thickness (Dry) | 3 - 5 | mils | - |
| Recommended Film Thickness (Wet Thickness) | 5 - 8 | mils per coat | - |
| Solids By Volume (Mixed) | 61.74 - 64.26 | % | - |
| Solids By Weight (Mixed) | 70.07 - 72.93 | % | - |
| Tack Free (Dry to Touch, 70°F) | 5 - 8 | - | - |
| Viscosity (Mixed) | 150 - 300 | cps | - |
| Volatile Organic Content (Part A) | 2.5 | pounds per gallon | - |
| Volatile Organic Content (Part B) | 2.75 | pounds per gallon | - |
Packaging & Availability
- Colors Available
Black only.
- Packaging Information
2 gallon and 10 gallon kits (volumes approx.).
2 gal kit = 1 gallon part A (10.05#/gal) and 1 gallon part B (8.6#/gal) (weights approximate).
Storage & Handling
- Shelf Life
- 1 Year