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The Universal Liner
   • Introduction
   • Features
   • Retro-Fit
   • Cast-in-Place
   • Product Specifications
   • Photos
   • Material Testing

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PVC: Polyvinyl Chloride Flexible Membrane Liners for Concrete Precast Products

The Universal Liner TM, designed by Miller Environmental Products, Inc., is a single-ply construction fabricated primarily of polyvinyl chloride (PVC), a polymer compound proven to be chemically resistant. Our Universal Liner TM is shaped and joined with radio frequency-bonded seams and can be easily handled and field welded using simple, proven construction methods with chemical fusion. Our liner can be cut, molded, and R-F welded to accommodate any size, shape or configuration.

Our PVC material has been tested and proven for over 40 years. Typical applications include, but are not limited to, landfills, sewage lagoons, industrial waste ponds, primary and secondary containment, reservoirs, canals, and farm ponds. Our product is also available for many types of precast products such as lining septic tanks to ensure longer life and water tightness.

The Miller Environmental Universal Liner System TM is an effective and economical solution to repairing and preventing precasted concrete leakage. The Universal LinerTM is guaranteed to add years of life to your product and make it both watertight and environmentally safe.

I. General
Our PVC flexible membrane product is a multipurpose, long-lasting lining that can be customized to fit any size, shape or configuration. This lining can be easily adapted for use in septic tanks, landfills, industrial waste ponds, secondary containments, D-boxes, and other such installation sites.

II. Product Description
The Universal Liner is a single-ply construction fabricated primarily of poly-vinyl chloride (PVC). Our U.S. Patent approved polymer material and process has been developed and specially formulated to be flexible and chemically resistant. It has been tested and proven to provide a long-lasting barrier to water, raw sewage, and liquid waste. Other materials are available for required resistance to meet the requirements of your particular project. Miller Environmental Products, Inc. has a U.S. Patent approved method for attaching the Universal Liner to the interior of your precasted concrete product as part of the manufacturing process. Using this cast-in-place method, our liner is fabricated to fit the precaster's mold core and is secured to the mold interior with our patented attachments. After the liner is in place, the concrete is poured into the mold according to normal procedure. Once the tank, vault or other concrete product has been cured and removed from the mold, it is completely lined with our PVC liner. Our cast-in-place method not only creates a watertight seal but also prevents deterioration of the product's concrete material. The Universal Liner can also be retrofitted into an existing tank or vault through the access cover. Our flexible PVC liner can fit through an 18" diameter manhole cover allowing an installer to attach the liner to the inside perimeter of the tank or vault (completely lining the interior). If high groundwater is an issue, the liner can also be attached to the exterior of the tank or vault to prevent outside water penetration. Our interior and exterior retrofitting methods guarantee a watertight tank or vault.

III. Intended Uses
Our U.S. Patent approved PVC liner is available in a variety of thicknesses and can be formulated to be resistant to virtually any chemical, liquid, or gas that your product may contain. The intended uses of the Universal Liner include, but are not limited to, the following:

IV. Typical Precast Concrete Installation
The Universal Liner is fabricated to the specifications of the one-piece monolithic or two or more mold core. Once the liner has been placed inside the core, the manufacturer pours the concrete into the mold according to normal procedure. The liner is made with exterior anchors that embed themselves in the poured concrete to ensure a tight, smooth bond. This bond is further strengthened by the close adhesion of the concrete to the liner's slightly embossed surface. Extra material is folded to allow the liner to be continuously attached as the precast product is stacked or joined. The finished, lined, precast concrete product is watertight and impenetrable by liquid and air-bound chemicals and gases. In this application, there are two methods to insure quick watertight inlet and outlet connections: pre-attach boots or proper cut and slide, quickly and easily making them both water tight.

V. Typical Retrofit Installation
In order to perform a retrofit installation of the Universal Liner, the tank or vault's access covers must be fully exposed. The tank or vault is then pumped, power washed, and aerated, with OSHA-approved equipment, in accordance with OSHA confined space entry procedures. Once a visual inspection of the interior of the tank or vault has been performed, the equipment, hand tools, and liner, which is folded, shipped, and handled in a small container, are passed through the access cover. The liner is installed using a variety of fasteners and boots to accommodate inlet and outlet pipes. All materials are resistant to the types of chemicals and/or corrosion typical to the particular application. Due to the flexibility of our fabrication procedures, the Universal Liner can be used in virtually any tank size, shape, or configuration in single or multi pieces.

VI. Exterior Applications
In high groundwater and other highly sensitive areas, the Universal Liner can be used on the exterior of the tank or vault to prevent hydrostatic penetration or to provide extra leakage protection. The Universal Liner can also be used as a breakout barrier in areas where one is required, or simply to line and water proof underground breakout barrier walls.

VII. Product Adaptability
In cases that require the use of two or more pieces of PVC liner, our material can be sealed together using a chemical fusion agent. The liner surfaces are cleaned of dirt and liquid and overlapped onto one another. The chemical fusion agent is brushed onto the overlapped areas with a brush or squeeze bottle and the liners are pressed firmly together. All seams are then visually inspected. This makes one, continuous liner for multi-connected precast products. Please refer to the material data sheet for information on the particular chemical fusion agent used in this process.

VIII. On-Site Product Repairs
Liner damage is repaired on-site with additional pieces of PVC material and chemical fusion agents or adhesives. A liner tear is covered with a rounded-corner patch extending six inches beyond the damaged area on all sides.

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