weber.prim 900
weber.prim 900
Primer for cement-based waterproofing compounds on mineral substrates
Product features
- improves the bonding strength of products to substrates
- alkali-resistant
- solvent-free
Product advantages
- ready-to-use
- easy application by brush or roller
- EMICODE EC 1 plus: very low emission
weber.prim 900 is an alkali-resistant, unsaponifiable primer with dust-binding and water-repellent properties. It is used to pretreat absorbent substrates, providing an ideal surface for the subsequent application of cement-based waterproofing systems. weber.prim 900 is suitable for priming cellular concrete, mineral renders/plasters, fibre-cement boards, concrete, masonry and cement screeds. It improves the bonding strength of subsequently applied systems, such as weber.tec Superflex D 24 or weber.tec Superflex D 2.
| Application tool | paint brush, block brush, roller or airless sprayer, suitable spraying device |
| Application temperature (air) | min. 3 °C |
| Application temperature (surface) | min. 3 °C |
| Drying time after | 0.25 - 12 hours |
| Density | 1.01 kg/l |
| Water vapour diffusion resistance coefficient | 1.800 |
| Composition | plastic dispersion |
Sustainability data sheet
Nachhaltigkeitsdatenblatt_weber_prim_900_350_en.pdf (PDF - 259,93 KB)
Download • SendTutorials and videos
Case studies
