TREMCO Vulkem 346 208L | WPD Group

Vulkem® 350/346/346 is a modified polyurethane traffic deck coating system composed of a base coat (350), heavy duty intermediate coat (346) and a top coat (346). This unique waterproofing system is designed to have tenacious adhesion, extreme impact and abrasion resistance along with remarkable chemical stability. The elastomeric properties of the system’s components enable the complete assembly to give and work with the concrete slab, bridging the shrinkage cracks.

Vulkem 350 Base Coat is a single-component urethane membrane that bonds firmly to clean, dry concrete and metal. It retains its integrity even if substrate movement causes hair-line cracks of up to 1/16" (1.5 mm). If cut or damaged, Vulkem 350 will prevent water migration between itself and the substrate. Vulkem 350 is available in roller (R) and in self-leveling (SL) grade for vertical and horizontal application.

Vulkem 346 Intermediate Coat is an aliphatic one-component urethane that is applied after the Vulkem 350 Base Coat has cured. The intermediate coat is loaded with aggregate to give the system excellent impact, abrasion and chemical resistance.

Vulkem 346 Top Coat is an aliphatic one-component polyurethane that is applied after the Vulkem 346 intermediate coat has cured. Interlaminary adhesion to Vulkem 346 is exceedingly strong. The top coat affords excellent abrasion resistance, UV stability and chemical resistance to complete this Vulkem Traffic Deck Coating System.

Basic Uses

Vulkem 350/346/346 is a cold-applied traffic deck coating system designed for waterproofing concrete slabs and protecting occupied areas underneath from water damage. Additionally, the system will protect the concrete from the damaging effects of water, deicing salts, chemicals, gasoline, oils and anti-freeze.

Features and Benefits

  • Fast cure through time allows for use 72 hr after installation
  • Mildew and fungus resistance safeguard concrete surfaces against environmental contaminants.
  • Excellent durability and UV resistance extends the useful life of vehicular systems.
  • Recoatable and compatible with other Tremco sealants, which enhance waterproofing protection with full system compatibility.


Vulkem 350: 5-gal (18.9-L) pails, 55-gal (208.2-L) drums.

Vulkem 346: 5-gal (18.9-L) pails, 55-gal (208-L) drums.


TREMCO Vulkem 346 PDS