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webercol K - KSA

webercol K

webercol K - KSA
webercol K - KSA

Product benefits

  • Internal and external flooring use
  • High bonding effect
  • Water resistant

Regular cement based tile adhesive (latex modified)

webercol K is a ready mix cement-based tile adhesive modified with redispersable polymer modified for internal walls and floor tiling as well as external flooring. It is a latex-Portland cement mortar as per ANSI A118.4 webercol WP has a strong bonding effect, and it is water resistant.

Product Features

Scope of use

webercol K is used for fixing a wide range of tiles on the following substrates:

  • Concrete
  • Lightweight blocks (Primer is recommended)
  • Stone walls (cleaned and prepared)
  • Gypsum board (primer is recommended)
  • Cementitious plasters and renders
    Substrate made of Gypsum plaster is not advisable.
    webercol K can be used for tiling in:
    • Bathrooms
    • Stairs
    • Rooms
    • Parking


Appearance Powder
Composition Cement, siliceous sand and additives
Color Grey or White
Powder density 1.27 ± 0.05
Paste density 1.45 ± 0.05
Open Time 25 min. at 20°C
Pot Life 2 hrs at 20°C
Wetting capability at 30 min 90%
Transfer at 20 min 80%
Shelf Life 12 months
Mixing Ratio 4 to 5 lit. per 20 kg; 5 to 6 lit. per 25 kg
Coverage 3 to 7 kg/m²
VOC and formaldehyde content ISO/FDIS 11890-2/GC-MS None (<10µg/l)
Service Temperature -20°C to +70°C

Test results

Test for: BS 5980:1980 Class A Type 1
Tensile adhesion strength (Appendix D)
Shear adhesion strength (App . E)

> 950 N
> 8.9 KN

Test for en 12004:2009

Open Time by Tensile Adhesion acc. EN 1346:2007 (N/mm²)5 minutes 1
20 minutes 0.56
Tensile Adhesion Stregth acc. EN 1348:2007 (N/mm²)Con A 1
Con B >0.5
Con C >0.5
Con D >0.5
* Con A - 28 days standards conditions
* Con B - 7 days standard condition + 21 days water immersion
* Con C - 14 days standard condition + 14 days at 70˚C
* Con D - 7 days standard condition, 21 days water immersion, 25 freeze/Thaw cycles
* Standard Condition - (50 ± 5)% Relative Humidity & 23 (± 2)˚C
All values given are subject to 5 to 10 % tolerance.

Test for ansi a118.4:2012

7 days standard conditions1,2
28 days standard conditions1,4

Applicable standards

BS 5980:1980 as Class A Type 1.
EN 12004:2007
ANSI A118.4



webercol K can be stored for 12 months in dry conditions, away from extreme temperatures.




Printable TDS (PDF)

Send or download the documentation

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

Instructions for use

Surface preparation

Substrate must be clean and free from greasy matters or dust. It should have been sufficiently cured in a way that any shrinkage has already occurred. Moisten slightly the substrate if it is dry at the time of application, never moisten the tiles.

Product preparation

Mix 20 kg of webercol K with 5 liters of clean cool water. An electric mixer with low rotation speed (< 300 rpm) can be used. Mix until a uniform lump free paste is obtained. Let the paste rest for a few minutes before starting the application.

Product application

Apply webercol K evenly on the substrate. Use a notched trowel to have a uniform thickness of 2 to 3 mm minimum.
Apply the tiles on the substrate and press them firmly, while making sure that the paste does not slip from the tile sides. webercol K can also be applied on the back of tiles to ensure full adhesion on the entire surface. Clean the tools with water after use. Cured materials can only be removed mechanically. In case exceptional performance is required, each bag of 20 kg webercol K should be mixed with 1 liter weberad 225 MB (styrene butadiene latex bonding agent) + 3.6 liters of clean water.


Clean the tools with water after use. Cured materials can only be removed mechanically.


Apply webercol WP on the substrate by areas of around 1m² each, which can be tiled within a maximum of 25 minutes from application at 20°C. After that time, an outer skin may form thus preventing the tile from adhering properly to webercol WP. Adjustments to the tiles should only be made during webercol WP‘s open time.It is recommended to leave a minimum width of 2mm around the tiles (or as designed). Grouting the tile joints should only be done at least 24 hours after tiling, using weberjoint perfect or weberjoint deco.

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.

Available packaging

KSA20 kg