Polyurethane Waterproofing

Monneli Elastothante TR

Pitch Elastomeric Single Component Polyurethane Waterproofing Membrane

Basements and Foundations
Tunnels and Bridges
Terraces and Balconies
Car Decks
Plaza Decks
Planter Boxes
Retaining Walls
Internal Wet Areas (kitchens, bathrooms)
Fountains and Pools
Sewages works
Tanking applications in areas where aggressive ground water conditions prevail
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Technical Information
Product Description

ELASTOTHANE TR is a liquid applied, single-component moisture-cured polyurethane coating, designed to form a seamless, elastomeric rubber waterproofing membrane. When fully cured ELASTOTHANE TR forms a permanently flexible waterproof lining to most building surfaces including reinforced concrete, block works, brick works, cement render, plaster board and fibrereinforced cement.

  • Single component. Ready for use
  • Excellent elasticity, allows expansion and contraction with the substrate, without cracking or becoming brittle
  • Excellent chemical resistance, has high resistance to oxidation and embitterment
  • High thermal stability which eliminates melting and flowing at high temperature
  • Excellent workability
  • Excellent adhesion can be applied to a wide range of substrates
  • Seamless-no joints
  • Easy to repair
Packaging, Coverage / Consumption

The product supplied in 15 Liter cans.

Consumption: Approximately 0.9 m2/Liter at 1mm thickness

Shelf Life & Storage

Keep the product in dry and sheltered place at temperature between +5oC to +25oC. In these conditions and in closed original containers, the product will have a shelf life of 12 months.

Technical Properties



Black Liquid

Elongation at Break (ASTM D412)

500 ± 50 %

Tensile strength (ASTM D412)

1.4 N/mm2

Recovery from 100 % elongation (ASTM D412)


Adhesion to concrete

> 1.0 N/mm2

Tear Resistance (ASTM D624)

14.5 N/mm

100% Modulus of Elasticity (ASTM D412)

0.6 N/mm2

Crack bridging (ASTM C836)

No loss on bond after extension of 3.2mm

Water vapor transmission (ASTM E96)

0.3 g/h/m2

Swelling in Water at 3 days


Shore A Hardness

45 ± 5

Extensibility after heat ageing

No Cracking or Tearing

Chemical Properties

Good resistance against acidic and alkali solutions, detergents, seawater and oils.

Tack free time at 25⁰ C

12 hours

Service temperature

-5⁰C to +80 ⁰C

Final Curing time at 25⁰C

2 days at 1.3mm thickness

Application Information
Instructions for use

Crack treatment

Shrinkages and non-moving structural cracks less than 1.0mm shall be filled with a pre-treatment strip of ELASTOTHANE TR of 1.0mm thick extended to 75 mm on both sides of the crack. Voids and honeycombs shall be patched with BETOFINISH C or EPOFINISH C 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 TR extending 150mm on both sides of the coving.

Movement Joints

Expansion and movement joints should be sealed with ELASTOSEAL PU, a Polyurethane sealant. When cured a stripped layer of ELASTOTHANE TR 200mm wide shall be applied and centered over all the sealed joints. While the membrane is still wet, fibre mesh shall be pressed to soak before saturating it again with another coat of ELASTOTHANE TR till it is fully covered. Allow to cure before the general application. The surface shall be prepared.


In case of very porous substrates, it is advisable to apply ELASTOTHANE TR diluted with 20% OF SOLVENTE 10 as primer.
The primer should be left to achieve a tack-free condition before applying the top coat.


ELASTOTHANE TR should be stirred before use until a uniform color and consistency of the product is achieved.


ELASTOTHANE TR 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 TR coats over pipe culverts, floor drains, corner joints and floor / wall junctions.


Tools and equipment used for ELASTOTHANE TR should be cleaned with SOLVENTE 10 directly after use.


  • Don't apply the product with imminent rain forecast, or on humid support
  • ELASTOTHANE TR should not be applied on surfaces with a risk of rising dampness and should not be applied at temperature below +5oC
  • The minimum application life for the opened pack is up to 48 hours if stored in closed and dry container
  • Water test should be run after the membrane is fully cured
  • During the peak temperature of the day in the summer season, working area should be covered to prevent direct sun effects
  • It is recommended to spread sufficient clean silica and to the final wet coat of ELASTOTHANE TR before applying tile adhesives. Tiling or finished floor installations should be carried out as soon as possible after full cure of membrane is established
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.

Additional Information
Health & Safety

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.

Important note

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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