Nukote Classic

Nukote Classic is a single pack product based on a patented technology. Nukote Classic is a solvent free, TDI free, single component, liquid applied, water catalyzed, polyurethane elastomeric waterproofing base membrane suitable for horizontal and vertical applications on concrete, metal wood and masonries. Nukote Classic with compatible top coats are installed as a flooring system for high traffic pedestrian, vehicular traffic, commercial and industrial floors.


  • High solids with very low VOC
  • Seamless, resilient, flexible and durable
  • Solvent free
  • TDI Free
  • Patented advanced technological coating
  • User friendly and solvent free
  • Environmentally friendly and safe
  • Non-gassing for applying in any thickness
  • Tough weather resistant waterproof system
  • Non-skid surface available in many various textures and finishes
  • Water curable polyurethane product
  • No electrical conductivity


  • Vehicular traffic decks
  • Pedestrian traffic decks
  • Balconies, patios, plazas, gymnasium and pool decks
  • Dairy, industrial kitchen, and food processing areas
  • Spark resistant floors
  • Tile underlays and shower pans
  • Concrete , plywood decks
  • Primed metal, wood, and masonry Surfaces


Standard color is white. Custom colors, blended to match any RAL number, are available upon request subject to minimum quantity.


50-gallon (190-liter) drum with a ½ a pint of catalyst

5-gallon (19-liter) pails, with a full vial of catalyst

1-gallon (3.8 liter) can with a partial vial of catalyst


Nukote Classic spread rate is 38 ft2/ gal (0.93 m2/liter) at 40 mil (1 mm) thickness without factoring any loss


Six months in factory delivered, unopened drums at 80 ºF (25 º C) .Store on pallets and keep away from extreme heat, freezing, and moisture. Opened and partially used material should be used within 7 days.

TECHNICAL DATA (All values @ 77 ºF / 25 ºC) US Metric
Solids by volume (ASTM D2697) 95% 95%
Volatile organic compounds (ASTM D2369) 0.5 lb./gal 55 gm/ lit
Theoretical coverage 38 ft2/gal @ 40 mils 0.93m2/ lit @ 1mm
Specific Gravity of materials ASTM D792 A: 9.35, B: 8.43 lbs./gal A: 1.12, B: 1.01 kg/ liter
Shelf life @ 77 ºF /25 ºC 06 months 06 months
Tensile strength (ASTM D412-C) 1200 -1500 psi 8.5 – 11 MPa
Elongation (ASTM D412-C) 575-775 % 575-775 %
Hardness (ASTM D2240) 55 -65 Shore A 55 -65 Shore A
Flexibility (2mm mandrel ASTM D522) Pass Pass
Water absorption -24 hours (ASTM D570) ~ 1 % ~1%
Crack Bridging @ -13 ºF/-25 ºC (ASTM C1305), 25 cycles Pass Pass
Tear strength (ASTM D642 ) 225 – 275pli 40 – 90 Kn/m
Impact Resistance (ASTM G14), No Holidays > 200 in-lbf > 20 J (N-m)
Flash point Pensky Martin >200 ºF >93 ºC
PROCESSING PROPERTIES (Under standard lab conditions)
Mix Ratio V/V Mix catalyst as per pack size and dosage and add water at 4:1 ratio (4 parts product: 1 part water)
Gel time 30 minutes
Recoat time 3- 4 hours
Maximum over coat time 24 hours
Properties and values are highly dependent on equipment, spray gun, mix chamber temperature, pressure and related parameters. Variations are possible and expected.



The surface of a concrete subfloor should be dry, smooth, structurally sound and free of depression, scale, or foreign deposits of any kind. Remove all curing compounds. Abrasive blast, sweep blast or water blast to remove all latent material and expose voids. Use a good quality epoxy filler or mortar for void and spall filling, skim coat or repairs. Prime, fill imperfections in the substrate surface to limit out-gassing. All concrete substrates, on or below grade level should be tested for moisture content. On-grade or below-grade concrete floors or slabs should have a moisture barrier installed to protect from ground moisture. The surface preparation of concrete should meet and conform to Joint NACE

6/SSPC-SP 13 standards and achieve a concrete surface profile of CSP 2 to CSP 5 as per ICRI Guideline No: 03732 for optimum performance.


All surfaces should be clean and free from contamination. The surface should be assessed and treated in accordance with ISO 8504, Abrasive blast the surface to minimum NACE-2/SSPC SP-10/Sa 2.5, as per ISO 8501-1, for a visual assessment of surface cleanliness with an anchor profile of 2 to 3 mils (50 -75 microns). Soluble salts must be removed to an acceptable levels. Refer to NCSI surface preparation manual for detailed procedures for different types of substrates.

Prime all the joints, cracks & flashings with Nukote EP Prime II or Nukote Ep Prime I .Mix pre-accelerated Nukote Classic with water at a ratio of 4:1 (4 gallon Nukote classic: 1gallon water (16 Liter of Nukote classic: 4 liter of water) by volume. Mix thoroughly until water is completely combined with Nukote Classic and let it sit for 5 minutes. Apply Nukote classic mixture over all joints, cracks & flashings. Bridge the joints, cracks & flashings with 4” fiberglass straight jacket tape or 3” polyester tape, pushing it into the sealant with trowel. Apply a thin coat of Nukote Classic paste over the reinforced tape and smooth on to adjacent surface.


Before application, pre-mix Nukote Classic using a mechanical mixer (Jiffy Mixer) at slow speeds or mix for at least
5 minutes, if mixed by hand. Mix Nukote Classic thoroughly until a homogeneous mixture and color is obtained. Use care not to allow the entrapment of air into the mixture.

Add Nukote Classic catalyst (1 vial per 19 liter pail) or as directed for other pack sizes and mix until a homogeneous mixture and color is obtained. Allow mixture to stand for 5 minutes, and then mix again before applying to the substrate. Nukote classic catalyst will reduce cure time for cold temperature applications. Up to 3 vials of Nukote Classic Catalyst per 19 liter pail of Nukote classic may be used.


For best results use a squeegee or notched trowel. Airless sprayer or phenolic resin core roller may be used but extra care should be taken not to trap air which may result in bubbles. Mix pre-accelerated Nukote Classic with water at a ratio of 4:1 (1 Liter of Nukote classic: 0.25 Liter of water) by volume.

Mix thoroughly until water is completely combined with Nukote Classic mixture evenly over the entire deck. Application should not be stopped part way across an area. Each application should be done in one complete step. A continuous application will ensure a smooth and level coat with no lines or streaks to disfigure the deck coating. When Nukote Classic mixed material begins to gel, broadcast 14-30 mesh rubber granules into the wet membrane or allow membrane to thicken until #1 or #2 washed dry sand, quartz, colored quartz (20 mesh, 6.5 Moh scale minimum hardness) can be broadcast without the aggregate sinking into the membrane. Time for thickening is dependent on atmospheric conditions especially temperature and humidity. Size of the aggregate should be decided based on the skid resistance requirement of the project


Allow each coat to cure (depending on environmental conditions and temperature) a minimum of 2-4 hours and a maximum of 24 hours. If more than 24 hours passes between coats, re-prime the surface with recommended NCSI primer before proceeding. Nukote Classic is very sensitive to heat and moisture. Higher temperatures and/or high humidity will accelerate the cure time. Use caution in batch sizes and thickness of application. Low temperature and/or low humidity extend the cure time.


Cured product may be disposed of without restriction. Uncured Isocyanate and resin portions should be mixed together and disposed of in accordance with local regulations. Containers should be disposed of according to local environmental laws and ordinances.


Do not open until ready to use, and store in a sealed container after opening. Should be used only as a base membrane. Nukote Classic is not UV stable and must be top coated. Not designed to withstand direct wear. Use recommended top coat suitable for the type of application.


This product contains Isocyanate and curatives

Download documents


Nukote Classic SDS
msds document


Nukote Coating Systems International, a Nevada, USA Corporation warrants that the two components of this product shall conform to the technical specifications published in the product literature. The quality and fitness of the product is dependent upon the proper mixture and application of the components by the applicator. Nukote Coating Systems has no role in the application of the finished polymer other than to manufacture and supply its two components. It is vital that the person applying this product understands the product and is fully trained and certified in the use of plural component equipment and application of plural component materials. There are no warranties that extend beyond the description on the face of this instrument, except when provided in writing, directly by Nukote Coating Systems International and executed under seal by a company officer.


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Our product range is derived from our proprietary and/or patented chemical formulations. We formulate products specific to application requirements modifying the products properties to improve and enhance performance in a variety of variable conditions, including abrasion resistance, chemical resistance, saltwater resistance, impact resistance, ultraviolet exposures, and so on. This provides our clients with unique solutions to their specific requirements and allows us to provide products designed specifically for oil and gas, construction, infrastructure, power generation and even entertainment industries.

The products represented below do not comprise the full breadth of our range of products but are limited to the most commonly specified formulations in our range. Many of our products are defined to exact requirements of a manufacturer or end-user and are thus not included in our electronically published data. Please click on the link below to access the data sheets incorporated into this site. For specific questions regarding product selection contact us directly at any of our regional locations.