Product Description
Protective Clear Sealer for Polished Concrete
Coval® PCS is a single-component, clear, thin-film sealer designed to protect polished concrete surfaces, preserving the natural look while safeguarding against wear and chemicals. Coval® PCS bonds covalently to the concrete substrate and is applied with an acetone pump sprayer and a microfiber applicator pad, typically over a densifier. This UV-stable sealer resists moisture, stains, chloride ion penetration, dirt, ice, acids, animal waste, and graffiti.
Recommended Uses
Ideal Applications for Coval® PCS
- Polished and densified concrete
- Polished and densified/sealed concrete overlays
- Polished and sealed/densified precast concrete products
- Polymer modified and concrete terrazzo
Product Characteristics
Detailed Specifications and Performance
Properties
Color, Finish, and Material Composition
- Color: Clear or slight amber (depending on conditions)
- Finish: Clear-Gloss
- Vehicle Type: Solvent base
- Flash Point: -9°C / 15°F
- VOC: Less than 100 g/L
- Weight per Liter: 0.96 kg/L
Dry Time (70°F, 50% RH)
Application and Usage Drying Times
- Touch Dry: 2-4 hours
- Walkable: 5-6 hours
- Forklift Traffic: 12 hours minimum
- Hot Tire Resistance: 72 hours
- Dry to Recoat: 2-4 hours (test for tack-free status)
- Full Chemical Resistance: 7 days
Spread Rate per Coat
Recommended Coverage Per Application
- Coverage: 800-1000 sq. ft. per gallon
Coverage Rates (Approximate)
Typical Spread Rates Based on Surface Type
- 400 grit polished & densified concrete: 800 sq.ft./gal
- Terrazzo: 1000 sq.ft./gal
- 800-3000 grit polished & densified concrete: 1000 sq.ft./gal
- Polished and sealed concrete overlays: 1000 sq.ft./gal
Staining Agent Resistance
Resistance Levels and Cleaning Recommendations
| Agent | Resistance (hrs) | Cleaner |
|---|---|---|
| 10% Citric Acid | 12 | Dry Cloth |
| Acetone | 48+ | Dry Cloth |
| Balsamic Vinegar | 12 | Dry Cloth |
| Betadine | 6 | Wet Cloth |
| Brake Fluid | 48+ | Dry Cloth |
| Coffee/Tea | 48+ | Dry Cloth |
| Gasoline | 48+ | Dry Cloth |
| Permanent Marker | 48+ | Solvent |
| Red Wine | 48+ | Dry Cloth |
| Spray Paint | 48+ | Solvent |
Indoor Safety
Precautions During Indoor Application
- Turn off pilot lights or open flames.
- Use OSHA-approved respirators and safety goggles.
Application Instructions
Step-by-Step Guide for Applying Coval® PCS
General Guidelines
Preparing for and Applying Coval® PCS
- Apply with an acetone pump sprayer and a microfiber mop head.
- Use Coval® Acetone Sprayer when possible.
- Reference Coval®’s application video for guidance.
- Start by saturating the microfiber pad, then spray evenly across the floor, mopping in circular motions.
- Maintain manageable wet-edge distance (25-30 feet).
- For outdoor applications, ensure temperature is between 40°F and 90°F, with humidity below 90%. Avoid wind and rain post-application.
Surface Preparation
Steps to Ensure Proper Surface Readiness
- Remove all contaminants from the surface with a pH-neutral cleaner.
- Test on a small area to confirm adhesion and finish.
- Avoid applying over painted or epoxy surfaces.