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    Polyurethane Waterproofing

    Hydrothane TR polyurethane based tar extended liquid applied waterproofing membrane by MATEX

    Hydrothane Tr

    Elastomeric Polyurethane Based Tar Extended Liquid Applied Waterproofing Membrane

    HYDROTHANE TR is a high-build, elastomeric, polyurethane-based waterproofing membrane extended with coal tar for enhanced elasticity and chemical resistance in harsh environments. HYDROTHANE TR cures into a seamless, flexible layer with excellent adhesion to concrete, plaster, masonry, and other substrates, ideal for foundations, wet areas, and industrial facilities. The membrane is self-priming with vapor permeability to allow substrate breathing, while offering superior crack-bridging ability and chemical resistance against detergents, brackish water, and saltwater. HYDROTHANE TR is easy to apply by manual tools, exhibits outstanding thermal stability suited for Middle Eastern climates, and allows quick, simple repairs if the membrane is damaged.

    Technical data:
    • Color : Black liquid coating
    • Application Temperature : 5°C to 40°C
    • Touch dry : 10 hours
    • Touch dry : 10 hours
    • Full dry : 7 days
    • Service Temperature : -5°C to 75°C
    • Coverage : 1.4 kg per 1m² @ 1mm thickness
    • Packaging : 20 kg plastic pail
    Related Documents:

    How to Apply Hydrothane Tr

    Hydrothane TR is a single component, ready to use membrane applied by roller, trowel, brush or spray, normally in two coats.

    1. Prepare the surface. All surfaces should be sound, clean, dry and free from loose material, efflorescence, laitance, curing compounds, dirt, oil and grease, and concrete must be fully cured. Clean metal of rust, oil, paint and contaminants, using mechanical methods or sandblasting on rusted surfaces.
    2. Pretreat cracks and corners. Fill non-moving cracks under 1.0 mm with a 1.0 mm strip of Hydrothane TR extending 50 mm each side. Form 45° coving fillets at parapets and columns with Lavarep F40 and apply a 1.0 mm reinforcing strip extending 100 mm each side; patch voids and honeycombs and let them cure.
    3. Seal movement joints. Do not coat expansion and movement joints with Hydrothane TR. Seal them with Megaseal PU1 polyurethane sealant.
    4. Prime porous surfaces. Priming is normally not needed. On porous surfaces, or when recoating old coats, dilute Hydrothane TR with 10% Armosolvent and use as a primer to reduce blistering.
    5. Mix. Shake the drum well to mix any settled material. Once opened, use the pail completely if possible, as skimming forms in remaining material.
    6. Apply. For roller or brush, apply two coats at approx. 0.65 kg/m² per coat, the second preferably at 90 degrees to the first. Apply during falling temperature and check thickness with a gauge to avoid blistering.
    7. Protect and finish. Do not leave the coating exposed for long periods; cover it once completely cured with mortar, tiles or the specified finish. For tiling, spread silica sand into the final wet coat and do not apply tile adhesive before cure.
    8. Clean tools. Clean all tools with solvent before the product hardens. Hardened material can only be removed mechanically.

    Summary of the method in the Hydrothane Tr Technical Data Sheet. Always follow the full TDS on site.

    Standards & Test Methods

    StandardTitleReferenced for
    ASTM D412Standard Test Methods for Vulcanized Rubber and Thermoplastic Elastomers—TensionTensile strength (>1.5 N/mm²) and elongation (>600%)
    ASTM D624Standard Test Method for Tear Strength of Conventional Vulcanized Rubber and Thermoplastic ElastomersTear resistance
    ASTM D2240Standard Test Method for Rubber Property—Durometer HardnessShore A hardness (50)
    ASTM D4541Standard Test Method for Pull-Off Strength of Coatings Using Portable Adhesion TestersAdhesion to concrete (>1.0 N/mm²)
    ASTM C1305Standard Test Method for Crack Bridging Ability of Liquid-Applied Waterproofing MembraneCrack bridging (>2 mm)
    ASTM E96Standard Test Methods for Water Vapor Transmission of MaterialsWater vapor transmission (>0.31 g/h/m²)
    ASTM C836Standard Specification for High Solids Content, Cold Liquid-Applied Elastomeric Waterproofing Membrane for Use with Separate Wearing CourseListed in the TDS

    Standards and test methods as referenced in the Hydrothane Tr Technical Data Sheet. Values in the TDS are typical laboratory results under standard conditions.

    Frequently Asked Questions

    What is the coverage of Hydrothane TR?

    Coverage is 1.4 kg per m² at 1.0 mm dry film thickness. By roller or brush, apply two coats at approx. 0.65 kg/m² per coat.

    How long does Hydrothane TR take to dry?

    Touch dry is 10 hours and full dry is 7 days at 25°C. Do not apply tile adhesive until the membrane has cured.

    What are the application and service temperatures of Hydrothane TR?

    Application temperature is +5°C to +40°C, with best results between 5°C and 35°C. Service temperature is -5°C to 75°C.

    Does Hydrothane TR need a primer?

    Normally no; it is self-priming. Porous surfaces need priming with Hydrothane TR diluted with 10% Armosolvent to reduce blistering from entrapped air.

    What is the shelf life and packaging of Hydrothane TR?

    It is supplied in 20 kg pails. Shelf life is minimum 6 months from production in unopened original packing, stored dry at +15°C to 25°C away from direct sunlight and high humidity.

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