Elastomeric Single Component Polyurethane Waterproofing Membrane
ELASTOTHANE WP1 is a single component moisture-cured elastomeric polyurethane membrane coating. It is liquid applied, user friendly, gives long lasting maintenance and free waterproofing protection to concrete and steel structures.
Packaging:
The product supplied into sealed metallic containers of 4 and 15 liters.
Consumption:
0.85 m2/Liter at 1mm thickness
Storage:
Keep the product in dry and sheltered place at temperature between +5°C to 25°C. In these conditions 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 WP1 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.
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, 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 WP1 extending 150mm on both sides of the coving.
Movement Joints
Expansion and movement joints should be sealed with ELASTOSEAL PU25, a Polyurethane sealant. When cured a stripped layer ELASTOTHANE WP1, 200mm wide shall be applied and centered over all the sealed joints. Allow to cure before the general application.
While the membrane is still wet cover with a correct cut strip of fiber mesh and press it to soak. Saturate the fiber mesh with another coat of ELASTOTHANE WP1 until it is fully covered. Allow curing before applying further coats of the waterproofing membrane.
Priming
Highly porous concrete or concrete containing micro-silica will be primed using PRIMER PU, a Polyurethane primer. The primer shall be applied at a
rate of 6-8m²/L.
The primer should be left to achieve a tack-free condition for 8 - 12 hours before applying the top coat. A second coat of primer may be required if the substrate is excessively porous.
ELASTOTHANE WP1 can be applied directly over COLMEFOAM HD, a polyurethane spray foam after through surface preparation without the need of primer.
Mixing
ELASTOTHANE WP1 should be stirred before use until a uniform color and consistency is achieved. Product is ready for use.
Application
ELASTOTHANE WP1 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.
A layer of ARMOFLEX, a fiber glass mesh should be embedded between the two ELASTOTHANE WP1 coats over pipe culverts, floor drains, corner joints and floor / wall junctions.
The final wet coat of ELASTOTHANE WP1 shall be spread with sufficient clean silica and before applying tile adhesives. Tiling or finished floor installations should be carried out as soon as possible after full cure of membrane is established.
Cleaning
Tools and equipment used for ELASTOTHANE WP1 should be cleaned with SOLVENTE 10 directly after use. Hardened material can only be removed mechanically.
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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