Tremco Vulkem 346 | Aliphatic One-Component Polyurethane Traffic Deck Top Coat

Tremco Vulkem 346 | Aliphatic One-Component Polyurethane Traffic Deck Top Coat

UV-Stable Aliphatic Polyurethane Top Coat for the Vulkem 350NF/346/346 Traffic Deck System | Brand: Tremco

Vulkem 346 Top Coat is an aliphatic, one-component polyurethane applied as the final wear surface in the Vulkem 350NF/346/346 cold-applied traffic coating systems. Formulated for UV stability and wear resistance on concrete slabs and occupied areas. Confirm suitability, system compatibility, coverage, and cure requirements against the current Tremco TDS, SDS, and project specification before use.

Performance Highlights

Product Description

Vulkem 346 Top Coat is applied after the Vulkem 350NF base coat and 346 intermediate coat have fully cured. It is designed for strong interlaminary adhesion to the Vulkem 346 intermediate coat; confirm adhesion requirements and recoat windows against the current TDS. The aliphatic polyurethane chemistry is formulated for UV stability compared to aromatic alternatives; confirm UV performance against the TDS. The system is designed to protect concrete from water damage, freeze/thaw cycling, de-icing salts, chemicals, and fuel exposure; confirm chemical compatibility against the TDS and project specification.

System Overview — Vulkem 350NF/346/346

Vulkem 346 Top Coat is the final layer in the Vulkem 350NF/346/346 cold-applied traffic deck coating system:

1. Base Coat: Vulkem 350NF — single-component urethane waterproofing membrane
2. Intermediate Coat: Vulkem 346 — aliphatic polyurethane build coat
3. Top Coat: Vulkem 346 — UV-stable aliphatic polyurethane wear surface

Key Characteristics

• UV-stable, aliphatic formula — formulated to resist yellowing and degradation under UV exposure; confirm UV performance against the TDS.
• Abrasion resistance properties — formulated as a durable wear surface for vehicular and pedestrian traffic; confirm load ratings against the TDS.
• Chemical resistance properties — formulated with resistance to fuels, oils, de-icing salts, and chemicals; confirm chemical compatibility against the TDS and project specification.
• Waterproofing system role — designed to protect concrete and occupied areas below from water damage as part of the complete system; confirm system design against the current Tremco specification.
• Interlaminary adhesion — designed for adhesion to the Vulkem 346 intermediate coat; confirm application window and surface condition requirements against the TDS.
• Cold-applied — no heat required; applied at ambient temperatures within the temperature range specified in the TDS.

Typical Applications

• Parking garages and parkade decks
• Pedestrian walkways and plaza decks
• Concrete slabs over occupied areas
• Traffic deck systems exposed to de-icing salts and chemicals

Downloads

Download the current Technical Data Sheet (TDS) using the button at the top of this page.

Health & Safety

Read the current Safety Data Sheet (SDS) before use. Wear chemical-resistant gloves, safety goggles, and ensure adequate ventilation during application. Store in a cool, dry location in original sealed containers away from heat and ignition sources.

Frequently Asked Questions

What is the difference between Vulkem 346 and Vulkem 951NF as a top coat?

Both are aliphatic polyurethane top coats. Vulkem 951NF is a two-component product; Vulkem 346 is a one-component product used in the Vulkem 350NF/346/346 system. Confirm the correct system specification for your project against the current Tremco TDS.

Does Vulkem 346 require a primer?

Vulkem 346 Top Coat is applied over a fully cured Vulkem 346 intermediate coat within the Vulkem 350NF/346/346 system. Refer to the current TDS for recoat windows and system requirements.

Tremco — Professional Waterproofing & Traffic Deck Systems

Technical information is provided for professional reference only. Product selection, substrate preparation, installation method, coverage, cure time, system compatibility and final performance remain the responsibility of the purchaser, installer, project specifier and/or manufacturer documentation. Always confirm suitability against the current TDS, SDS, project specification and site conditions before use.

Available at Canopus Supply — North Vancouver, BC. Authorized distributor in British Columbia.