Tremco

Vulkem® 350NF Base Coat – Low Odor, Single-Component Waterproofing for Pedestrian Surfaces

Vulkem® 350NF Base Coat – Low Odor, Single-Component Waterproofing for Pedestrian Surfaces

$366.79
  • SKU: TRE 350NF
  • Availability: Ships from the manufacturing facility in 2 business days if the order is received Monday through Friday by 2:00 PM EST.
  • Shipping: Free Shipping
Availability: Ships from the manufacturing facility in 2 business days if the order is received Monday through Friday by 2:00 PM EST.
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Description

Vulkem® 350NF is a single-component, low-VOC, low-odor polyurethane waterproofing base coat designed for odor-sensitive environments. It cures to form a seamless, rubberized membrane that adheres to concrete, well-anchored AC plywood, and primed metal surfaces. Ideal for use in pedestrian areas, Vulkem 350NF delivers high-performance waterproofing while minimizing disruption to surrounding spaces.

Features & Benefits

  • Low VOC & Low Odor: Ideal for use in occupied or enclosed environments.
  • Durable & Flexible: Maintains performance despite substrate movement and bridges hairline cracks up to 1/16” (1.5 mm).
  • Water Migration Prevention: Maintains adhesion even if damaged or cut.
  • Fast Cure Time: Tack-free in 6–8 hours; walkable in 4–6 hours.
  • Versatile Application: Available in roller-applied (R) and self-leveling (SL) versions for vertical or horizontal surfaces.
  • Recoatable & Compatible: Works with Vulkem topcoats and Tremco waterproofing systems.

Technical Data

Flash Point: >160 °F (71 °C) – Set-A-Flash
Solids by Weight: 90–98% – ASTM D1353
Drying Time (40 mil film @ 75°F, 50% RH): 6–8 hours – ASTM D1640
Open to Foot Traffic: 4–6 hours
Viscosity: 4000–6000 cps – Brookfield C&P
Elongation: 600–700% – ASTM D412
Tensile Strength: 220–460 psi – ASTM D412
Shore A Hardness: 45–60 – ASTM D2240
Peel Adhesion (Unprimed): 20–30 pli, 100% cohesive failure – ASTM D903
Pull-Off Adhesion: 200–400 psi – ASTM D4541
Accelerated Aging: No loss in performance – ASTM D573

Recommended Applications

  • Balconies and terraces
  • Stadium concourses
  • Plazas and pedestrian walkways
  • Mechanical and equipment rooms
  • Recreation decks
  • Parking garages (pedestrian levels)
  • Low-odor environments and occupied buildings

Application Details

  • Surface Prep: Substrate must be clean, dry, and free of contaminants. Minimum 3000 psi compressive strength and ≤4.5% moisture content. Recommended finish: light steel trowel and fine-hair broom or ICRI #2–#4 profile.
  • Application Requirements: Substrate temperature must be at least 5°F (3°C) above the dew point. Ensure proper ventilation during application. Do not apply to damp or contaminated surfaces.
  • Finish Options:
    • Vulkem 350NF-R: Roller-applied for vertical or variable surfaces
    • Vulkem 350NF-SL: Self-leveling for horizontal applications