WC-1 (NS) General Description

This product is a Non-Skid version of the basic WC-1 Modified Fluoropolyurethane. It is a two-component, solvent-based topcoat for application of a thin film coating system to a variety of properly prepared substrates. The finished system displays exceptional moisture and abrasion resistance while providing corrosion protection, and outstanding appearance.

WC-1 (NS) exhibits excellent UV resistance, outstanding weathering characteristics, gloss retention, and color retention. It will provide extended service life in Industrial, Marine and Commercial applications. WC1 NS is ideal for decks, wet floors, walkways, etc., where non-skid characteristics are needed.


Vehicle Type Modified Fluorinated Polyurethane
Solids Content ± 2% 68.4% by weight - White, mixed
51.1% by volume - White, mixed
Coverage (Theoretical) 410 sq ft per gallon at 2.0 mil DFT - White, unthinned (0% Loss Factor).
10.06 sq m per liter at 50 microns DFT - White, unthinned (0% Loss Factor).
Coverage (Estimated) 287 sq ft per gallon at 2.0 mil DFT - White, unthinned (30% Loss Factor).
7.04 sq m per liter at 50 microns DFT - White, unthinned (30% Loss Factor).
Number of Coats One normally at 2.0 mils (50 microns) DFT.
Application Method Airless Spray preferred - Conventional spray acceptable, brush for small areas if necessary
Thinner FUT-102 (Normal) or FUT-130 (Slow)
Clean up solvent MAK, MIAK or MIBK
Shelf Life at 75° F Component A (Base): 12 months from the date of manufacture.
Component B (Activator): 6 months from date of manufacture.
(provided that components are stored in unopened, sealed containers).
(Drying time at 75 ° F)
1.5 to 2 hours tack free
18 hours hard
48 hours full cure
Temperature Limits 300° F Intermittent Dry Heat
Flash Point (Seta Flash) 93°F (34deg;C).
Color, Gloss Most colors are available. Special Colors are available including Fed. Std. 595B And Australian Std. 2700.
Pot Life 1.5 to 2 hours at 70° (21°C)
1 hour at 90° (32°C)
Mixing Ratio 4 to 1 by volume (4 parts base / 1 part activator)
VOC Content 3.5 pounds per gallon (420 grams per liter, mixed White.
Also available in 2.8 pounds per gallon VOC.
Shipping Information Approximately 12 (5.44 kg) pounds per gallon including container - White
Freight PAINT, FLAMMABLE LIQUID, UN1263, Packing Group III, Hazchem 3YE.

IconSurface Preparation

Good surface preparation and cleaning of the substrate is essential to the performance of the coating system. All the surfaces that are to be coated should be dry, clean, and free of all contaminants. For old or previously finished surfaces, the degree of cleaning required prior to application is dependent upon the condition of the substrate. Consult a representative of 21st Century Coatings for surface preparation required on your specific project.


Abrasive blast for this coating system. The relative humidity must remain below 85%. Apply coatings only when the surface temperature is more than 5° F above the dew point temperature of the surrounding air. This 5° F differential is necessary to prevent condensation of moisture on the surface. Apply this coating system only when the temperature of the ambient air and the receiving surface is between 50° F and 90° F. For optimum application properties, the temperature of the stored material should be between 50° F and 80° F prior to mixing and application. Maintain the unmixed material in closed containers in protected storage at 40° F to 100°F and out of direct sunlight or rain.

Ferrous Metal

Abrasive blast to SSPC-SP6 to SSPC-SP 10 ("Commercial Blast" to "Near White Metal Blast") with a surface profile of 1.5 to 2 mils (35 to 50 microns) should be achieved. Brush apply one coat of either of the following primers (or equivalent products) over welds, corners and crevices.

Allow a minimum 2 hours drying of the brushed areas. Apply a full coat of chosen primer over entire area to a minimum 3.0 mils DFT (75 microns). Apply primer to all areas as soon as possible after blasting but not longer than eight hours. Check dry film thickness, all areas must have a minimum primer coating of 3.0 mils DFT (75 microns). Areas with less than 3.0 mils DFT (75 microns) of primer should have an additional coat of primer or intermediate applied. Apply WC-1 NS Top Coat at average 2 mils DFT (50 microns) to obtain a minimum total DFT of the coating system of 5.0 mils DFT (125 microns).

Apply full coat of primer (21EP150) over entire area to 3.0 mils DFT upon completion of the brushed areas. Apply primer to all areas as soon as possible after blasting but not longer than eight hours. Check dry film thickness. All areas must have a minimum coating of 3.0 mils DFT of primer. Areas with less than 3.0 mils DFT of primer should have an additional coat of primer or intermediate applied. Some specifications will require two (2) coats of primer / intermediate at 2 to 4 mils DFT each to assure proper coverage, with a total DFT of primer / intermediate to be 4 to 8 mils.

Apply the WC-1 Fluorinated Polyurethane at 2.0 to 3.0 mils DFT to obtain a total Dry Film Thickness of the coating system of 5.0 to 8.0 mils.

Galvanized Metal

Remove oil and prime with Pretreatment (Wash) Primer such as DOD-P-15328D, F-117 or equivalent. Apply finish of WC-1 (NS) Top Coat.


Clean thoroughly and etch with phosphoric acid based cleaning solution. Rinse well and allow to dry. Prime with 21EP150 or equivalent.


The surface must be clean, dry, properly cured and free from all contaminants. Older surfaces should be "Brush Off Blast" (SSPC-SP 7) to provide an etched surface and to remove contaminants and laitance. Remove all dust before coating. Prime with an Acrylic Block Filler, if surface is extremely porous, or with an Acrylic Primer, if relatively smooth.

Allow to dry at least 48 hours.

Follow primer with an intermediate coat of Epoxy Polyamide Coatings of 21EP151, 21EP152, 21EM32, 21ES020 or equivalent prior to application of WC-1 NS Top Coat.


Must be clean, dry, properly cured and free from all surface contaminants. Hand or mechanically sand the entire surface until smooth and free of any surface gloss.

Solvent wipe surface with MAK, MIBK, MEK or Acetone, turning rag continuously to remove all sanding dust. Repeat if necessary to assure a clean dry surface.

Apply 1 or 2 coats of Epoxy Polyamide primer or intermediate (21EP150 or 21EP151) or equivalent prior to finish. If the surface is smooth, apply WC-1 (NS) Top Coat directly to the clean, dry fiberglass.


This is a two component coating supplied in two separate containers: Component A (base) and Component B (activator). Thoroughly mix Component A (base) with mechanical agitation material prior to mixing. Ensure that both components are consistent in appearance and thickness after stirring, and ensure that the activator (Part B) is clear and transparent before mixing the components together. Lightly shake Component B (activator) prior to mixing. Pour contents of Component B into Component A while under light agitation and stir well for approximately 3 to 5 minutes prior to application. No induction time is required, just thorough mixing of the materials. The paint should be kept covered at all times after mixing and during application to prevent contamination. Note that this material is moisture sensitive. Any introduction of moisture or water into the material during mixing or application will shorten usable pot life drastically.


This product, when mixed, should be ready to apply. In the field, it should require minimal thinning for application. If thinning is necessary to achieve the desired application viscosity, thin up to approximately 10 percent, maximum, per gallon. Use only the thinners indicated above in the Specification section.

Icon Application

FPU coatings are designed for spray application but small areas may be brushed. Use of an airless spray unit, conventional spray or HVLP spray is recommended. No special system for cleaning or repairing is required. Steel surfaces should be abrasive blasted and primed. It is desirable to limit the area blasted to allow the application of the primer coat during the same shift. No longer than eight (8) hours should elapse prior to the application of the prime coat.


This material is for industrial use only. Material Safety Data Sheets will be furnished on all purchases, it is the responsibility of the applicator to be aware of the information contained therein.

Harmful Or Fatal If Swallowed. Harmful And/Or Irritating If Material Or Vapors Are Absorbed Through Skin. Keep Away From Heat, Open Flame And Sparks. Use necessary safety equipment such as air masks, non-sparking tools, ladders, and shoes, explosion proof electrical equipment meeting the National Electric Standards, etc. See MSDS for detailed information. (WC-1) Notice:

The technical data contained herein are true and accurate to the best of our knowledge. All products are offer and sold subject to 21st Century Coatings, Inc. Standard Conditions of Sale. Published technical data and instructions are subject to change without prior notice.


Additional Information

For additional information contact your Distributor or :
21st Century Coatings, Inc.
4701 Willard Ave., #426
Chevy Chase, MD 20815
Tel: (301) 654-0099 Cell: (301) 873-5230
Email: johnshammas@gmail.com