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Protects Air • Shields Soil • Safeguards Waterways
Primary containment of toxic contamination. Posi-Lock® is a spray-applied mineral-based mortar membrane engineered to rapidly protect air, soil, and waterways from the potentially toxic impacts of migrating contamination. Trusted by leading remediation companies on Superfund and remediation sites around the world, Posi-Lock® delivers proven containment performance in even the most demanding environments.
Posi-Lock® is available in multiple formulations to balance durability with cost, and comes in brown, grey, and green to suit site conditions. With no product shelf life and the ability to be applied year-round in all weather conditions, it integrates seamlessly into active project schedules of any scale.
Application is fast and efficient — install multiple acres per day using LSC Applicators or standard hydroseeders, require minimal surface prep, and apply remotely where safety or access is a concern. If ongoing excavation is needed, access and patch Posi-Lock® without disruption.
Posi-Lock® effectively addresses the full range of contaminated site challenges including odor and VOC containment during active excavation, toxic dust and ash containment, contaminated soil and stockpile containment, groundwater infiltration containment, coal ash and asbestos containment, and post-fire debris containment.
Posi-Lock® is a single containment system trusted on Superfund and remediation sites around the world. Explore the primary applications below.
Posi-Lock® seals odors and volatile organic compounds at the source during active excavation, protecting workers and surrounding communities. It can be applied remotely where safety or site access is a concern, with no significant surface preparation required.
Prevent the migration of toxic dust and ash from contaminated sites with a durable spray-applied membrane. Posi-Lock® has been deployed at some of the world's most environmentally sensitive sites—including the Hanford Nuclear Site and the 9/11 World Trade Center cleanup.
Posi-Lock® delivers long-term encapsulation for coal ash basins and asbestos-containing materials, providing proven erosion, dust, and leaching control that holds up under extreme conditions. CCR slopes covered with Posi-Lock® have withstood over 90 inches of rain with near-perfect results.
Encapsulate contaminated soils and stockpiles to eliminate toxic infiltration into groundwater and prevent off-site migration. Posi-Lock® is easily accessed and patched if ongoing excavation is required, making it practical for active remediation projects of any scale.
Used on Superfund sites in densely populated areas, Posi-Lock® contains VOCs and odors while minimizing disruption to surrounding communities. Its mineral-based formulation means insignificant removal or disposal costs and minimal fuel and equipment requirements.
Establish rapid debris containment following wildfires and other disaster events. Posi-Lock® can be applied year-round in all weather conditions, scaled for small or large projects, and deployed quickly—making it the ideal solution when time is critical and site conditions are unpredictable.
When a power utility faced a costly mandate to establish vegetation on the outside berms of its CCR basin—requiring hundreds of thousands of cubic yards of imported soil and strict ongoing mowing regulations—they discovered a far more economical solution. Learn how Posi-Lock® was installed in just a few weeks, won regulatory approval, and delivered erosion protection and vegetation control at a fraction of the projected cost.
This real-world case study shows how Posi-Lock® long-term coatings can eliminate the need for expensive earthwork, soil importation, and repeated maintenance cycles. See how the site withstood over 90 inches of rainfall in its first year and remained in nearly perfect condition—results so compelling the utility immediately expanded the program to additional acreage and a nearby site.
Install multiple acres per day; Use LSC Applicators or standard hydroseeders; Require minimal surface prep; Apply remotely where safety or access is a concern.
Formulations for durability measured in days, months or years.
Accessed and patched easily during ongoing excavation; Withstands the most intense rainstorms; Applies year-round in all conditions; Scales to projects of any size; Carries no shelf life.
Used on some of the world’s most environmentally sensitive sites; Mineral-based membrane; Insignificant removal or disposal costs; Minimal fuel and equipment required.
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