Weber Saint-Gobain - Official website of the company

weberep 321 PA

weberep 321 PA
weberep 321 PA

Product benefits

  • Interior & Exterior Use
  • Applied on walls and ceilings
  • Repairs honeycombs, pinholes & cracks

Fair face concrete putty

weberep 321 PA is a paste to be mixed with cement. The mixture produces a repair stucco used to level and fill the holes in concrete walls for a maximum thickness of 2 mm without cracking. It is used to achieve proper smoothing of concrete surface and to eliminate irregularities of concrete, bubbles, honey combs or cracks. weberep 321 PA can fill pin holes up to 5 mm wide

Product Features

Associated finishes

  • Plastic decorative coating, paints
  • Wall paper
  • Adhesive plastic finishes
  • Tiles fixed with a thin bed adhesive (Interior only)

Surface treated with Conrep.321 PA must not be recovered with products formulated with hydraulic binders.


Specific gravity
Wet mix life
Temperature during application
White paste
Synthetic resins, mineral charges and admixtures
< 1 hour
should be between + 5ºC and + 35ºC

Admissible substrates

Exterior and interior cementitious walls or ceilings.

  • Reinforced concrete surfaces
  • Under face of concrete slabs
  • Prefabricated concrete slabs
  • Traditional plaster


Can be store up to 6 months from manufacturing date in original non open packaging, in a dry ventilated area


Send or download the documentation

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

Instructions for use

Surface preparation

Substrates must be clean, sound, dust free and free from all traces of oil and laitance. Traces of mould joints must be levelled.

Product preparation

Mix Conrep.321 PA with equal quantity of cement until a homogeneous paste is obtained.

Product application

Product is applied using a stainless steel trowel or stucco blade. Surfacing is obtained with one or several passes depending on requested finish. In hot weather, substrate should be moistened prior to application.

Environmental and Safety

Safety precautions

Avoid prolonged contact with skin. Wear protective gear for hands & eyes. 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.

Available packaging

Lebanon20 kg
Syria20 kg
Jordan20 kg
KSA20 kg
UAE20 kg
Qatar20 kg
Kuwait20 kg
Oman20 kg