Pitch Elastomeric Two Component Polyurethane Waterproofing Membrane
ELASTOTHANE TR2 is a liquid applied, coal tar modified, two component moisture-cured Polyurethane coating, designed to form a seamless, elastomeric rubber waterproofing membrane. When fully cured ELASTOTHANE TR2 forms a permanently flexible waterproof lining to most building surfaces including reinforced concrete, block works, brick works, cement render, plaster board and fibrereinforced cement.
Packaging:
The product supplied into sealed metallic containers of 4 and 15 liters.
Consumption:
0.9 m2/Liter at 1mm thickness depending on porosity and substrate’s conditions.
Storage:
Keep the product in dry and sheltered place at temperature between +5⁰C to +25⁰C. In these conditions and in closed original containers, and in closed original containers, the product will have a shelf life of 12 months.
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Surface Preparation
The surface of the concrete shall be sound, clean and uncontaminated.
This preparation shall be such as to leave a sound exposed concrete surface free from dust, loose particles and any deleterious matter. If the concrete surface is defective or has laitance, it must be cut back to a sound base.
Oil, grease, varnishes, rust, dust and mould on metal surfaces shall be removed by wire or stiff brushing and grit blasting then wiped with SOLVENTE 10 prior to priming.
New concrete or cementitious surfaces should be at least 28 days old and have moisture content not exceeding 5%. Old or existing surface should be refurbished mechanically to ensure clear and sound substrate.
Crack treatment
Shrinkages and non-moving structural cracks less than 1.0mm shall be filled with a pre-treatment strip of ELASTOTHANE TR2 of 1.0mm thick extended to 75 mm on both sides of the crack. Voids and honeycombs shall be patched with COLMEF’s range of repair products allowing the area to cure before applying the membrane.
Voids and honeycombs shall be patched with BETOFINISH C, a single component polymer modified fairing coat, allowing the area to cure before applying the membrane.
Right angle bends
All right angle bends must have a coving detail installed. In areas where parapet walls, columns, pipe penetrations are present, a 45° coving fillet shall be made at all corners using BETOCEM FIBER from Colmef a Fiber reinforced shrinkage controlled mortar for concrete repair to the water saturated cured surface.
All other angles, joints, protrusions and stress joints should be pre-treated with a heavy application of ELASTOTHANE TR2 extending 150mm on both sides of the coving.
Allow the patched area to cure before applying the membrane.
Movement Joints
Expansion and movement joints should be sealed with ELASTOSEAL PU25. When cured a stripped layer of ELASTOTHANE TR2 200mm wide shall be applied and centered over all the sealed joints. While the membrane is still wet, fiber mesh shall be pressed to soak before saturating it again with another coat of ELASTOTHANE TR2 till it is fully covered. Allow to cure before the general application.
Priming
Highly porous concrete or concrete containing microsilica will require sealing using ELASTOTHANE TR2 diluted with 20% solvent as primer. The primer should be left to achieve a tack-free condition before applying the top coat.
Mixing
ELASTOTHANE TR2 is supplied in 2 pre-weighed components. Thoroughly stir the contents of the base can. Pour component B hardener into Component A pail and mix well with a mechanical jiffytype mixer operated at low speed. Scrape the side of the pail to ensure the entire product has been properly mixed until a homogenous mixture is achieved.
Application
ELASTOTHANE TR2 shall be applied by brush, roller, trowel or airless spray in 2 coats to achieve a minimum dry film thickness of 1.0 mm for each coat. The two coats must be applied at right angles to one another
Cleaning
Tools and equipment used for ELASTOTHANE TR2 should be cleaned with SOLVENTE 10 directly after use.
Recommendations
During application, wear appropriate protective clothing, goggles, gloves and respiratory equipment if necessary. In case of contact with skin, rinse with water and again wash thoroughly with soap and water. In case of contact with eyes, rinse with plenty of water and seek medical advice accordingly. If ingested, obtain medical attention immediately. Do not induce vomiting.
The information in this Technical Data Sheet is based on Colmef Monneli’s experience. Colmef Monneli does not accept any liability arising from the use of its products as it has no direct or continuous control over where or how its products are applied. All Colmef Monneli’s Data Sheets are updates on regular basis. It is the user’s responsibility to obtain the latest version.
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