weber.therm 303
weber.therm 303
Universal mineral bonding and reinforcing mortar within ETICS weber.therm system B 200
Product features
- high bonding strength and excellent workability properties
- best suited for mechanical application and is also available in silo
- in combination with the woven reinforcement mesh weber.therm 311, a high-performance reinforcement layer is achieved for use in weber.therm ETICS (external thermal insulation composite systems)
Product advantages
- easy and safe application
- fine-grained bonding and reinforcing mortar
- suitable for thin-layer thicknesses
weber.therm 303 is used as a thin-layer bonding and reinforcing mortar within ETICS (external thermal insulation composite system) weber.therm B 200.
| Layer Thickness | approx. 3 mm |
| Water demand | approx. 7,5 l/30 kg |
| Water vapour diffusion resistance [µ] | ≤ 25 |
| Tensile adhesion strength | W2 |
| Haftzugfestigkeit Untergrund | > 0,3 N/mm² |
| Strength class | CS IV |
| Reaction to fire [EN13501-1] | A1 |
| Composition | cement, graded mineral aggregates, fibers, hydrophobing agents, additives for better workability and adhesion to the base coat |
| Color shades | natural grey, natural white |
| Water absorption coefficient w (DIN 18550) | < 0,5 kg/m²·√h |
| Application, air and object temperature | not below +5 °C |
