weber.therm 300
Mineral, multi-use bonding and reinforcing mortar within Etics weber.therm A 100, A 200 and B 100 - Renovation mortar for old loadbearing renders

Product features
- high bonding strength and excellent workability properties
- best suited for mechanical application and is also available in silo
- provides a high-performance reinforcement layer in combination with weber.therm reinforcement fabrics
- also for use on old load-bearing renders
Product advantages
- Faserarmiert
- Dickschichtige, stabile Armierungsschicht
- Filzbar
weber.therm 300 is used as thick-layer, mineral bonding and reinforcing mortar within ETICS (external thermal insulation composite systems) weber.therm A 100, A 200, B 100. Also as renovation mortar for old load-bearing renders.
| Layer thickness | 5 - 10 mm |
| Water demand | approx. 8 l/30 kg |
| Water vapour diffusion resistance [µ] | ≤ 25 |
| Class of capillary water absorption | W2 |
| Tensile adhesion strength | > 0,3 N/mm² |
| Solid mortar density | approx. 1.500 kg/m³ |
| Strength class | CS III |
| Reaction to fire [nach EN13501-1] | A1 |
| Composition | cement, white hydrated lime, 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 |
| Temperature of air, materials and substrate during application | not below +5 °C |
safety datasheet
weber.therm 300 natural white - Safety Data Sheet (PDF - 126,49 KB)
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Sustainability data sheet