Weber Saint-Gobain - Official website of the company

weberdry gum

weberdry gum
weberdry gum

Product benefits

  • Ideal for waterproofing under tiling
  • Highly elastic
  • extreme durability 


weberdry gum is a ready-to-use, acrylic base , one component, and yellow-colored paste. It is designed for waterproofing under tiling in wet areas that do not experience water pressures. When fully cured, weberdry gum forms a durable, elastic, seamless, odorless and impervious membrane that will not re-emulsify if continually immersed in water. It has a good resistance to alkalis, salt solutions & diluted acids, non-hazardous composition with excellent strength & flexible characteristics .

Product Features

Scope of use

weberdry gum has been specifically designed for the long term waterproofing of wet areas inc. showers, bathrooms, laundries, exterior decks, terraces and balconies. It may be used for the following:

- Waterproofing vertical and horizontal surfaces in kitchens tops before laying ceramic tiles and natural stone.

- Wet areas not exposed to pressurized water, such as bathrooms and showers in residential buildings, hotels and hospitals.

- Moisture sensitive, absorptive substrates, e.g. plasters, plaster slabs, gypsum fiber boards, plaster boards, wooden chipboards, and anhydrite screeds in moist and wet areas subject to usual domestic use


Color Yellow
Consistency Paste
Density 1.477
Solid Content 74%
Elongation 200%
Water penetration (mm) Nil
Crack bridging (mm) 2.5
Weight gain (g) 12
Adhesion after contact with lime water (N/mm2) 1.6


Consumption at 1mm thickness: 1.190 kg/m2 

Applicable Standards

EN 14891:2012


Can be stored up to 6 months from manufacturing date, in original packaging, non open, protected from humidity, hot or freezing temperature.


Printable TDS (PDF)

Printable MSDS (PDF)

Send or download the documentation

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

Instructions for use

Instructions for use


Substrates should be dry, smooth, sound and free from oil, grease, waxes, dust, laitance and all loose matter. Any surface defects should be repaired prior to application of membrane. Prime absorptive mineral or gypsum-based substrates and plaster boards with primer weberdry prime 338


Apply the 1st layer of weberdry gum with sufficient thickness to plug pores, cracks, and holes. Allow to dry and apply the second layer if necessary. Wait 6 hours between a coat and another. All corners, cracks or construction joints should receive reinforcement by introducing weber band between the first and the second layer. Wait at least 24 hours after application of weberdry gum before tiling.The final thickness of the product must exceed 1mm in order to form a consistent, seamless and flexible membrane.

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.

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 thoroughly with soap and water. In case of contact with eyes, wash thoroughly with clean water and seek medical attention. If swallowed, do not induce vomiting and 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

Lebanon25 kg
Syria25 kg 
Jordan25 kg
KSA25 kg
UAE25 kg
Qatar25 kg
Kuwait25 kg
Oman25 kg