MITECH KO-W - Universal Adhesive for Mineral Wool (MW) in Thermal Insulation Systems - 25kg

MITECH KO-W is a cement‑based, fibre‑reinforced universal adhesive designed for fixing mineral wool (MW) insulation boards and forming the reinforced base coat in external thermal insulation composite systems (ETICS). Its optimised formulation ensures strong adhesion, high mechanical durability and stable performance across demanding façade conditions.

MITECH KO‑W is specifically for mineral wool insulation, providing reliable bonding to typical mineral substrates such as concrete, cement render, lime‑cement render and masonry. The adhesive also serves as a base‑coat mortar for embedding glass‑fibre reinforcement mesh, creating a durable, crack‑resistant layer ready for thin‑coat renders. Its fibre‑reinforced structure improves mechanical strength, impact resistance and dimensional stability, making it suitable for both new‑build and refurbishment applications.

Consumption:

• Completion of the reinforced layer: ~3.5–4 kg/m²
• Binding mineral wool: ~4–5 kg/m²

CHARACTERISTICS

• Strong adhesion to mineral wool — secure fixing of MW boards on mineral substrates.
• Fibre‑reinforced formulation — enhanced strength and crack resistance.
• Dual‑purpose adhesive — suitable for both bonding and base‑coat formation.
• High vapour permeability — compatible with mineral wool’s breathable characteristics.
• Durable reinforced layer — stable substrate for thin‑coat renders.
• Good workability — easy mixing, spreading and mesh embedding. 

APPLICATION

• Fixing mineral wool insulation boards in ETICS façades
• Embedding reinforcement mesh for durable base‑coat layers
• Levelling uneven mineral substrates prior to render application
• Thermal renovation works using MW‑based systems

MITECH KO‑W provides reliable adhesion, high mechanical durability and excellent compatibility with mineral wool, making it a trusted choice for breathable, fire‑resistant ETICS façades. Its dual‑function capability reduces the number of products required on site and ensures consistent system performance.