Ceresit ZU Insulation and Mesh Adhesive (Base Coat Render)

Ceresit ZU Insulation and Mesh Adhesive is a cement-based, polymer-modified adhesive specifically designed for fixing white or graphite expanded polystyrene (EPS) insulation boards to exterior walls. The EPS boards should meet the requirements of external thermal insulation composite systems (ETICS) according to British Standard EN 13163. Ceresit ZU provides an excellent bond between the insulation and the substrate, whether that is concrete, brickwork, or existing renders. It is also used to embed the reinforcing mesh layer over the insulation, creating a base coat render system. The adhesive is flexible enough to accommodate minor movements in the substrate.

• Cement-based, polymer-modified adhesive
• Designed for fixing white or graphite expanded polystyrene (EPS) insulation boards
• EPS boards should meet requirements of EN 13163 for ETICS
• Provides excellent bond strength between insulation and substrate
• Suitable for concrete, brickwork, and existing render substrates
• Used to embed reinforcing mesh, creating a base coat render system
• Flexible to accommodate minor substrate movements
• Easy to apply

• External walls

Application and installation of an external wall insulation system

Fixing polystyrene boards.

• Adhesive should be applied with a trowel around the perimeter of the board - band of 3-4cm wide and several blobs in the centre.
• Place the board to the wall and press it down with a long float. Properly applied mortar after pressing the board to the wall should cover min. 40% of its area.
• The boards should be fixed closely to each other in one plane, with the horizontal joints in different levels.
  

Installing the reinforced mesh.

• Add the adhesive with a 10 or 12 mm notched trowel on the surface polystyrene boards.
• Press the mesh on the fresh mortar until it is no longer visible.
• Thin coat render can be made after approx. 24 hours from the application of the reinforcement layer.

Once purchased this product is non-returnable.

Please note that we can supply this product cheaper if you buy it with the whole external wall system from us. Contact us for more details.