Wall & Facade Systems
Vetotherm FLEX

Cementitious based adhesive and base coat for EIFS / ETICS

Expanded and extruded polystyrene and rock wool adhesive on cementitious substrates, masonry and gypsum boards
Fiber mesh reinforced base coat as part of EIFS / ETICS systems
Ready to receive a wide range of decorative finishes
Decorative Coating Brochure
download (*.pdf 2.78Mb)
Technical Information
Product Description

Vetotherm Flex is a polymer modified deformable cementitious adhesive specially designed to be used for permanent fixing of thermal insulation boards to a wide range of substrates including concrete, and masonry. Vetotherm Flex is also designed for use as a protective mortar providing a durable layer for insulation boards that is suitable to receive several types of decorative finishes.

  • Single component easy to apply
  • Water resistant
  • Thixotropic, non-sag
  • High physical and mechanical properties
  • Deformable and impact resistant
  • Requires no primer
Compliance Standard
  • ETAG 004 requirements for ETICS / EIFS systems
  • ANSI/EIMA requirements for ETICS / EIFS systems
  • ISO 13007:2010 as C2TE S2
  • EN12004:2010 as C2TE S2
Packaging & Coverage

Vetotherm Flex supplied in 25 Kg Bag
Coverage - 1.3 - 1.5 Kg/m2 / mm Thickness

Shelf Life & Storage

Original sealed bags of Vetotherm Flex has a shelf life of 12 months provided it is stored clear of ground in a dry shaded place below 25ºC.

Application Information
Instructions for use


Vetotherm Flex can be applied directly on concrete, cement plaster and masonry. In case of very porous substrates, water should be sprayed onto surface prior to the application.


To ensure proper mixing, a mechanically poweredmixer or heavy duty drillfi tted with suitable paddle should be used.

Add 6.75 - 7.5 Liter (for each 25 kg bags) of clean water to a clean container. The powder is then added slowly to the water while mixing continuously with low speed mixer/ heavy duty drill (400 - 600 rpm) fitted with a suitable mixing paddle. Mixing time should be continued for 3 minutes until a uniform consistency is obtained.


As an Adhesive:

Apply the mortar in a strip around the insulation board with a few spots in the middle. In case of a smooth or plastered substrate, back buttering technique can be employed and a notched trowel can be used to spread
the mortar on the back of the insulation board.

As a Base Coat and Protective Layer:

Apply the mortar over the fixed thermal insulation panels. Using an aluminum roll, embed the precut reinforcing mesh onto the fresh applied mortar until its fully immersed in the Vetotherm Flex layer. Smoothen the surface with a long flat trowel. More than one Vetotherm Flex layer can be applied and where needed double or triple reinforcement mesh can be used.

Note: Mesh strips have to be over lapped by approximately 10 cm.


All tools should be cleaned immediately after finishing by water. Hardened materials can be cleaned mechanically.

Surface Preparation

All surfaces must be clean and free from oil, grease or loose materials. The insulation board has to be firmly fixed using Vetotherm adhesives and anchors.

Large gaps between insulation boards must be filled with strips of insulation board to leave minimal gaps or filled with PU foam of similar U-Value to the insulation boards.

All edges of the building need to be protected by PVC Vetotherm accessories unless otherwise specified.

Additional Information
Health & Safety

Vetotherm Flex is highly alkaline therefore avoid direct contact with eyes or skin. It is recommended to useprotective gloves and goggles during application. Any skin contact should be wash with soap & water. In case of eyes irritation, immediately wash with copious amount of clean cold water. Seek medical advise.

Vetotherm Flex is non-flammable. For further information, please refer to material safety data sheet.

Important note

Saveto endeavors to ensure that any advice, recommendations, information it may give, is accurate and correct. It cannot accept any liability either directly or indirectly arising from the use of its products, because it has no direct or continuous control over where or how its products are applied, whether or not in accordance with any advice, specification, recommendation or information given by us. Saveto has the right to change any of the specifications mentioned in the Technical data sheets upon its discretion without prior notification. 

Hard copies of TDSs are printed once or twice a year, while our technical data sheets are continuously being updated as per R&D improvements and new 3rd party testing; kindly refer to our website for the latest updated TDSs.

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Contact us
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Saudi Vetonit Co. Ltd. (SAVETO)
P.O. Box 52235 Riyadh 11563, KSA
Toll: (+966 11) 265 3334
Fax: (+966 11) 265 0936
800 124 9009
Fax: (+966 11) 265 0718
Email: sales@saveto.com
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