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weberep 331 TX

formerly "Conrep.331 TX"

weberep 331 TX
weberep 331 TX

Product benefits

  • Non-shrinking
  • High strength
  • Good resistance to sea water and to high-sulphate water

Non shrink thixotropic repair mortar with fiber

weberep 331 TX is a ready-to-use mortar mainly made of sand (reconstituted grain size range), special cement, fibres and special additives that provide special properties: non-shrinking, thixotropic, high strength, high adhesion, compactness; its closed porosity slows down carbonation

Product Features

Scope of use

  • Repair of concrete surfaces, honeycombing, edges of steps and all types of load bearing situations.
  • Restoring the structure of damaged construction: columns, slabs, vault, mats and dam overflows.
  • Reinforcing of weakened structures such as balconies, pedestals and cornices.


Active ingredients

Grain size


VOC and formaldehyde content ISO/FDIS 11890-2/GC-MS

hydraulic binders, synthetic fibres, without any chlorides or metal particles
Grey Powder
0 to 4 mm

Approx. 25 liters / 50 kg bag
Approx. 12.5 liters / 25 kg bag
5 to 50 mm in one coat
None (<10µg/l)

Compressive Strength

BS EN 12190 at 22°C ± 1

1 day20 MPa
7 days45 MPa***
28 days60 MPa**

Flexural Strength

BS EN 196-1 at 22°C ± 1

7 days6 MPa
28 days7 MPa

Tensile Strength

BS EN 6319 Part 7

28 days4 MPa*

Adhesion strength

BS EN 1881 Part 207

28 days› 1.5 MPa

Test for compatibility with potable water

BS 6920 Part 2.6: 2000


*2.77 MPa for Lebanon

**55 MPa in UAE

***40 MPa in UAE

Applicable standards

BS EN 196-1: 1994
BS EN 6319 Part 2
BS EN 6319 Part 3
BS EN 6319 Part 7
BS 6920 Part 2.6: 2000
ASTM C 109/C109M-05
BS 1881 Part 207: 1992 section B


12 months after manufacturing date in original and non-open packaging, under cover, in dry condition, away from humidity, protected from extreme temperatures and direct sunlight.


Send or download the documentation

You can either send the documentation to an email address, or download it.

Instructions for use

Product preparation

Mix a 50 kg bag weber.rep 331 TX with 8 to 8.5 litres of clean water until a smooth paste is obtained (mix 4 to 4.25 lit. of water with a 25 kg bag).

For Lebanon, mix a 25 kg weber.rep 331 TX bag with 3.25 to 3.75 litres of clean water until a smooth paste is obtained.

Product application

Substrate preparation

weber.rep 331 TX may be applied on sound concrete, masonry, rock or similar materials. Remove damaged concrete and laitance by chipping with a pick or cold-chiseling to get a rough surface. The area must be surrounded by clean edges. Do not feather edges. The surface must also be free from any trace of grease or oil. Brush or scrape corroded steel with a metal brush, or sand it to remove all rust particles. Remove dust from all surfaces to be fixed. For an optimal protection of steel, apply weber.rep 370 PF by brush prior to weber.rep 331 TX. Saturate the surface with water by copiously spraying just before application, and if possible, 6 hours before application as well.

Product application

weber.rep 331 TX can be applied:

  • Manually with a trowel.
  • By using a dry or wet spraying machine.
  • By pumping.

weber.rep 331 TX must be used within one hour from mixing depending on temperature & site condition. For thickness more than 50 mm, it is recommended to apply weber.rep 331 TX in 2 layers. When the first coat is applied it must be directly roughened to increase bonding with the second coat. Re-mixing with an extra amount of water is forbidden.

After application, cure the exposed surface by spraying cool water for 3 days, by using a curing compound like cure WH or cure Y 40 or by covering with properly secured plastic sheeting. Ideal application temperature is between + 5ºC and + 35ºC. If the application temperature is higher than 35 ºC, make sure to use cool water to keep the mixed mortar temperature below 30 ºC.



Environmental and Safety

Safety precautions

The product contains cement powders which, when mixed with water, release alkalis that could be harmful to the skin. It is preferable that the application be done in a ventilated area, and to wear protective gear for hands, eyes and respiratory system and to avoid breathing of the dust. Splashes on the skin should be washed away by cleaning with soap and water. In case of contact with eyes, wash thoroughly with clean water.If swallowed, do not induce vomiting, in both cases seek medical attention. The product is non-flammable.


While the company guarantees its products against defective materials, the use and application of these products are made without guarantee since the conditions of their application are beyond its control. It is recommended to verify with the company that the product is suitable for the intended use, and that this Data Sheet version is the latest one. The company may modify it without prior notice. Technical characteristics are listed for guidance only. For more information, please contact the company’s office in your location.


The information included on this Technical Data Sheet is the sole property of SODAMCO Holding. The unauthorized disclosure, use, dissemination or copying (either whole or partial) of this data sheet or any information it contains, is prohibited and subject to legal pursuit.


Arabic version

English version

Available packaging

Lebanon25 kg
Syria25 kg
Jordan25 kg
KSA25 kg
UAE25 Kg
Qatar25 kg
Kuwait25 kg
Oman 50 Kg