Polycoat PC-220 – Single-Component Waterproofing Urethane Membrane

Moisture-Cured Elastomeric Waterproofing Base Coat for Decks, Concrete & Metal

PC-220 is a single-component, liquid-applied, moisture-cured aromatic polyurethane elastomeric waterproofing membrane — the proven base coat for pedestrian deck coating systems. Applied directly to wood, plywood, concrete, or metal substrates, PC-220 creates a seamless, flexible waterproofing layer that forms the foundation for a durable, decorative deck coating system.

Available in Gray and Tan base colors, in 1 Gallon and 5 Gallon pails. Note: PC-220 is not UV stable and requires a topcoat — flakes, quartz broadcast, or a solid-colour polyurethane or polyaspartic coating.

Typical Deck Coating System

1. Base coat: Apply PC-220 at approximately 50 sq ft per gallon. Allow to set up enough to walk on (24–48 hours).
2. Broadcast coat: Apply a second coat of PC-220 and broadcast 100% decorative flakes or quartz granules into the wet coating.
3. Topcoat: Apply a clear protective polyurethane (e.g. PPG Pitthane) or polyaspartic (e.g. CHEM1000PG) topcoat over the broadcast layer.

Key Features

• Single component — no mixing, no pot life concerns; ready to apply straight from the pail
• Moisture-cured — cures using ambient humidity; no separate catalyst required
• Seamless waterproofing membrane — liquid-applied for a continuous, joint-free waterproof layer
• Elastomeric — flexible membrane accommodates substrate movement and thermal expansion
• Economical — cost-effective base coat for pedestrian deck systems
• Available in Gray & Tan — two base colours to suit different topcoat and broadcast combinations
• Optional curing accelerator: PC-50 Accelerator available to speed cure time

Compatible Substrates

• Wood and plywood decks
• Concrete surfaces
• Metal substrates

Performance

• Seamless waterproofing — eliminates joints and seams that are common failure points in traditional deck waterproofing
• Flexible membrane — moves with the substrate to resist cracking over time
• Broadcast-ready — second coat accepts 100% flake or quartz broadcast for a decorative, slip-resistant finish
• System-compatible — engineered as the base layer for a complete polyurethane or polyaspartic deck coating system

Important: PC-220 is not UV stable. A protective topcoat (polyurethane or polyaspartic) must be applied over the broadcast layer.

Important Shipping Information

This product is classified as Dangerous Goods (DG) and must be shipped via Canpar in accordance with transportation regulations. Unfortunately, we are unable to ship this item using other carriers. Please note that Dangerous Goods shipments may require additional transit time and are subject to carrier restrictions.

▶ Watch and Learn how this works:

🎥 Watch: PC-220 Application Video

🎥 Deck Coating 101 – Applying PC-220

🎥 Installing a Pedestrian Deck Polycoat Elastomeric Coating System