Weber Saint-Gobain - Official website of the company

weberpas PR 339

formerly Decofacade. 339 AEP

weberpas PR 339
weberpas PR 339

Product benefits

  • Homogeneous absorption for substrate
  • Uniform aspect



Acrylic elastomeric primer

weberpas PR 339 is water based acrylic co-polymer primer and bonding compound developed to assist in adhesion and preparation of smooth concrete walls for application of elastomeric materials such as weberpas deco 320 and weberpas deco 340 .This bonding primer is designed to provide excellent adhesion to smooth concrete surfaces. It prevents the elastomeric coating from peeling off from the substrate.

Product Features

Scope of use

For priming of substrates made of fair faced concrete.


Appearance Milky white liquid
Density Approx 1 kg / lit
Drying time 1 to 2 hours depending on application rate and climatic conditions


100 to 150 m2/pail depending on the roughness and absorbency of the substrate.


Can be stored up to 12 months after manufacturing date, in original packaging.


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

The substrate must be perfectly sound, clean, dry and free from grease, oil, dust or any friable matters.

Product application

Shake container well before use. Apply the primer evenly, using a brush, roller or small broom, over the sound, clean and dust-free surface and leave to dry to a clear thin film before over coating with elastomeric paint.It is important that the primer fill every square inch of the substrate to ensure a solid bond of the paint. Avoid forming of puddles. Clean tools with water when wet.

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

Lebanon5 Kg , 20 Kg
Syria5 Kg , 20 Kg
Jordan5 Kg , 20 Kg
KSA5 Kg , 20 Kg
UAE5 Kg , 20 Kg
Qatar5 Kg , 20 Kg
Kuwait5 Kg , 20 Kg
Oman5 Kg , 20 Kg