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POLIBRID® 706 is a tough, flexible and resilient elastomeric polyurethane designed primarily for spray application over geotextile fabrics for the production of geomembrane liners. POLIBRID 706 produces a dense monolithic membrane that is permanently bonded to the geotextile fabric, resulting in a strong, highly impermeable geomembrane liner. It withstands concentrated loads and surface deflections without tearing or breaking. Does not require an earth cover as it is physically unaffected by exposure to UV. Easy to repair by hand at any time if needed and repair kits are available.

Product Type: Elastomeric Coating, Solventless & High Solids Coating

Application Area: Geomembranes, Pedestals, Pipes, Tank Support Base, Wall

Compatible Substrates & Surfaces: Polypropylene (PP), Urethane Membranes

Features: Abrasion Resistant, Consistent High Quality, Good Toughness, High Solids Content, High Strength, Impact Resistance, Impermeable, Odorless, Prevents Pinhole, Resilient, Solventless, UV Resistant

Application Method: Spray

Chemical Family: Polyurethanes (PU)

    Knowde Enhanced TDS

    Identification & Functionality

    Chemical Family

    Features & Benefits

    Labeling Claims
    Product Highlights

    POLIBRID 706 may be applied onto almost any surface, offering a wider range of options in terminations and transitions from the geomembrane onto walls, tank bases, pads, pedestals and pipe racks. Fabric panels are overlapped at least 12", producing double-decked seams that greatly exceed the strength of the geomembrane itself. Reduces the need for mechanical anchoring and eliminates heat welding required for seams in thermoplastic sheet liners.

    POLIBRID 706 is a premium-quality, thermosetting elastomer that meets all known VOC regulations and is virtually odorless during and after application. It is airless spray applied with specially designed plural component pumps at virtually any film thickness in one application. Its solventless formulation eliminates pinholes caused by solvent evaporation, producing a dense monolithic membrane that can be placed in immersion service moments after application.

    Applications & Uses

    Application Method
    Compatible Substrates & Surfaces
    Cure Method
    Recommended Uses

    POLIBRID 706 is recommended for application over non-woven polypropylene geotextile fabrics to produce flexible geomembrane systems, typically installed over compacted soil. Also suitable for direct application to urethane foam, concrete or steel to protect against impact and abrasion.

    • Secondary Containment Dikes
    • Evaporation Lagoon Liners
    • Storm Water Runoff Containment Liners
    • Bio-Remediation Lagoon Liners
    Mixing

    Thoroughly mix Resin (Part A) with air-driven agitator for 30 minutes just prior to use. Black tint must be added to Catalyst (Part B), then thoroughly mixed with air-driven agitator for 30 minutes just prior to use.

    Geomembrane Installation

    Soil Base: Prepare per Engineer's instructions to provide suitable foundation for geomembrane. Base must be dry with no weak or unstable areas, or abrupt grade changes. Base must be free of sticks, roots, debris and/or organic or decomposing matter. When applicable, excavate 24" wide x 36" deep trench (backfilled, compacted after geomembrane installation) to anchor geomembrane perimeter. Provide adequate drainage.

    Fabric: Use heat-set, non-woven needlepunched polypropylene geotextile fabric (8 to 10 oz./yd.). Unroll and place flat upon soil base, allowing 12" overlap between adjacent panels. Cut panels as needed to accommodate penetrations, transitions, trenches, etc. Keep clean and dry, avoiding foot traffic on uncoated fabric.

    Coating Application: Spray coating directly onto fabric, producing a monolithic membrane. At fabric overlaps, lift top lap and apply coating to bottom lap, then lay top lap back down and press it into the fresh coating using non-stick roller. Spray coating over top lap to produce an even, pinhole-free transition along entire overlap. To reduce field installation time, fabric panels may be pre-coated in-shop, moving them to job site as needed so that only seams and transitions are coated on-site.

    NOTE: Transitions of the geomembrane to foundations, walls, piping, anchoring devices, etc. may require the use of specific primers, surface preparation methods and other procedures for the treatment of steel, concrete and other substrates.

    Cleaning Solvents
    • MEK
    • Lacquer Thinners  
    Flush Solvents
    • Mineral Spirits  

    Properties

    Physical Properties
    ValueUnitsTest Method / Conditions
    Solids Content100.0%
    VOC Content0.0
    Maximum Film BuildUnlimited
    Film Shrinkage (Wet to Dry)0.0
    Tensile Strength1441.0psiASTM D-412
    Elongation115.0%ASTM D-412
    Hardness (25°C)76Shore AASTM D-2240
    Flexibility (Multiple Bends on 1/8" diameter mandrel, 30 mils)PassASTM D-1737
    Abrasion Resistance (Weight Loss Taber Abraser w/CS-17 Wheels, 1000 Revolutions, 1000 kg Load)4.5mgsASTM D-4060
    Tear Resistance141.0lbf/inASTM D-624
    Compressive Strengthmin. 1000psiASTM D-695
    Impact Resistance (Direct & Reverse Impcat)min. 110lbsASTM D-2794
    Water Vapor Transmission Rates (75 - 80 Mils, 24 Hrs, 100% R.H., 23°C)0.069gm/100 in²ASTM F-1249-90
    Service Temperature Resistance (Dry)-46 to 60°C
    Typical Properties
    ValueUnitsTest Method / Conditions
    Mix Ratio by Volume2A : 1B
    Dry to Touch (22°C, 120 Mils)15.0Minutes
    Recommended Dry FIlm Thickness over Geotextile Fabric60.0Mils
    Minimum Cure Temperature-4.0°C
    Ambient Temperature4 - 49°C
    Materials Temperature27 - 32°C
    Substrate Temperature5 - 60°C
    Ambient Moisture (R.H.)max. 95%
    Theoretic Coverage (1 mil DFT ~ 1 m²/lt. at 1 mm., 40 m²/lt. @ 25µ)1604.0sq.ft./gal.
    Flash Point (Resin)260.0°C
    Flash Point (Catalyst)199.0°C
    Specific Weight (Resin)8.5lbs./gal.
    Specific Weight (Catalyst)10.0lbs./gal.
    Specific Weight (Mixed)9.0lbs./gal.

    Safety & Health

    Health and Safety
    • Avoid skin contact
    • Wear chemical goggles as minimum eye protection, use impermeable gloves and cover all exposed skin
    • Do not allow contaminated clothing to contact skin
    • Use properly fitted organic vapor respirators and adequate ventilation
    • Wash hands before eating, smoking or using washroom
    • Follow precautions in CFR Title 29 (OSHA) and all pertinent local, state & federal health, safety and environmental regulations.
    First Aid
    • Skin Contact: Wash thoroughly with plenty of soap and water.
    • Eye Contact: Immediately flush with fresh clean water for at least fifteen (15) minutes and get specialized medical attention promptly.
    • Inhalation: Remove to fresh air and provide oxygen.
    • Ingestion: Immediately call a physician or poison control center. Don not induce vomiting.
       

    Packaging & Availability

    Packaging Type
    Available Packaging
    • 50 gallon steel drums (189.25 Lt.)
    • Sales Unit: 150 gallon kit

    Storage & Handling

    Pot Life
    7 - 10 Minutes
    Shelf Life
    1 Year (Resin), 6 Months (Catalyst)
    Storage

    Keep dry. Do not place drums directly over concrete or earth; store on top of wood slats or pallets. Blanket partial drums with nitrogen gas to prevent moisture contamination. Avoid freezing. Do not open until ready to use. Rotate Resin (Part A) drums regularly if stored for long term. Catalyst (Part B) must be stored where temperatures will not drop below 70°F (21°C) or exceed 95°F (35°C).