Description
Ceresit ZU is a high-performance 2-in-1 basecoat render and adhesive specially formulated for use in External Thermal Insulation Composite Systems (ETICS). It is designed for bonding expanded polystyrene (EPS) insulation boards to mineral-based substrates and for embedding fibreglass mesh into the reinforcement layer.
This mineral-based adhesive provides excellent adhesion, flexibility, and crack resistance. It ensures a durable and weather-resistant finish for both new builds and renovation projects. Ceresit ZU is ETA-certified, making it suitable for professional and certified EWI systems across the UK and EU.
Key Features
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✅ Dual Functionality – Adhesive for EPS boards and basecoat render for mesh embedding
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✅ Excellent Adhesion – Strong bond to EPS and mineral surfaces
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✅ Crack-Resistant – Fibre-reinforced to withstand thermal and structural movement
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✅ Vapour Permeable – Breathable formulation for optimal wall performance
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✅ Easy to Apply – Smooth application with trowel or float
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✅ ETA Certified – Approved for use in certified thermal insulation systems
Applications
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External wall insulation with EPS insulation boards
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Embedding fibreglass mesh for basecoat reinforcement
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Suitable for residential, commercial, and industrial façades
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Compatible with all standard Ceresit render systems
Technical Specifications
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Packaging: 25kg bag
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Colour: Grey
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Application Temperature: +5°C to +25°C
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Basecoat Thickness: 2–5 mm
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Consumption (EPS Fixing): approx. 4.0–5.0 kg/m²
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Consumption (Mesh Embedding): approx. 3.0–4.0 kg/m²
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Storage: Up to 12 months in dry conditions, original sealed packaging