Belzona 3131

3000 Series — Winter-Grade Weatherproofing

Belzona 3131

WG Membrane — Liquid-applied roof coating for long-term protection and waterproofing applicable during winter weather conditions.

A moisture-activated urethane roof coating providing immediate rain resistance and long-term weatherproofing for all roof types. Applied by brush or roller with no mixing required. Not damaged by rain immediately after application. Suitable down to 0°C — designed for year-round use including winter.

Belzona 3131 (WG Membrane) roof protection in winter

Product Description

Designed for application in all weather conditions, this cold-applied liquid coating offers long-term repair and protection to all types of roofs. The moisture-activated urethane formulation bonds strongly to all types of roofing materials and will not be damaged by rain even immediately after application. Incorporates a reinforcement sheet to allow easy control of coating thickness during application, and adapts to roof movement due to its outstanding elasticity.

Instant Rain Resistant
Not damaged by rain immediately after application
0°C Min. Apply
Winter-grade application down to freezing
No Mixing
Brush & roller — single component, no conditioner needed

Key Benefits

  • Provides quick rain resistance — fast cure ensures the roof will be immediately watertight
  • Provides long-term roof protection
  • Can be applied down to 0°C (32°F)
  • Microporous structure allows trapped moisture to escape whilst providing long-term weatherproofing
  • Lightweight material — will not overload existing structures
  • Excellent adhesion to felt, asphalt, lead, zinc, copper, glass, concrete and brick
  • No conditioner required to porous surfaces including asphalt and mineral felt
  • Adapts to roof movements due to its outstanding elasticity
  • Can be easily applied by brush and roller with no mixing required
  • Application and cure at cold temperatures — no hot work involved

Applications

  • Creation of waterproof and weatherproof roof surfaces
  • Long-term roof leak repair and protection of deteriorated gutters
  • Sealing of glazing bars
  • Weatherproofing around upstands and roof protrusions such as skylights, chimneys and vents
  • Replacement of damaged or missing flashings
  • Sealing of gaps and joints on coping stones as well as roof parapet walls
  • Tank base sealing

* All products are subject to regional restrictions.

Photo Gallery

Roof surface prior to application of Belzona 3131
Roof surface prior to application
Roof area protected using Belzona 3131 in winter
Roof area protected in winter conditions
Deteriorated flashing on walkway
Deteriorated flashing on walkway
Belzona 3131 applied to seal the damaged area
Belzona 3131 applied to seal the damaged area
Porous walkways hazardous to pedestrians
Porous walkways hazardous to pedestrians
Belzona 3131 applied with aggregate for anti-slip finish
Applied with aggregate for anti-slip finish
Deteriorated flashings on pitched roof
Deteriorated flashings on pitched roof
Flashings sealed with Belzona 3131
Flashings sealed with Belzona 3131
Balcony suffering from water ingress
Balcony suffering from water ingress
Balcony protected using a seamless layer of Belzona 3131
Balcony protected with seamless Belzona 3131 layer
Damaged gutter requiring repair
Damaged gutter requiring repair
Belzona 3131 applied to resist standing water
Belzona 3131 applied to resist standing water

More Information

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