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Aussie Gas-Lock 420

Aussie Gas-Lock 420

Aussie Gas-Lock 420 is a high-performance, two-component, fluid-applied gas vapor barrier system formulated to block methane, VOCs, and other soil gases. The product consists of a chemically cured, water-based polymer blend reinforced with synthetic compounds for enhanced flexibility, adhesion, and chemical resistance. Once applied, it forms a seamless, elastomeric membrane that effectively seals substrates against gas intrusion while accommodating structural movement and surface irregularities.

Where to Use

Aussie Gas-Lock 420 is ideal for use in the following applications:

  • Methane mitigation zones
  • VOC-contaminated soil area
  • Top of slab vapor barrier systems
  • Podiums and structural slabs
  • Foundations and slabs adjacent to landfills or former industrial sites

Key Features

  • Gas-Tight Protection — Blocks methane, VOCs, and other harmful soil gases with a seamless monolithic membrane.
  • Flexible & Durable — Accommodates minor substrate movement while maintaining gas barrier integrity.
  • Environmentally Friendly — Water-based and low-VOC, making it safer for installers and indoor environments.
  • Easy to Install — Fluid-applied by spray, roller, or brush for quick coverage and full substrate conformity.

Material

Liquid-Applied (Two-Component Polymer System)

System

Both Below-Grade and Above Grade Vapor Intrusion Mitigation System

Installation

See Installation Instructions for warnings, installation instructions and information on various application surfaces.

Optional Components

Drain Board 6000

Drain Board 6000

Drain Board 9000

Drain Board 9000

Drain Board 9000T

Drain Board 9000T

Bottom Drain

Bottom Drain

Crete 6200

Crete 6200

Crete 6400

Crete 6400

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