High-flow and fiber-reinforced cement-based thin-layer screed for thicknesses ≥ 20 mm for floating constructions in renovation works
4.0 - 4.5 liters / 25 kg
The product can be stored for at least 6 months in its original unopened packaging if kept and protected from moisture.
Fields of application
weber.floor 4365 is used as thin-layer floating screed on several substrates via manual or mechanical application. Ideal for quick renovation works on separating membrane (for ex. acoustic and de-coupling membrane weber.floor 4955) or on insulation boards. The product offers an economical solution in comparison with dry screed elements or well sandedoff mastic asphalt screeds. It forms a load-bearing substrate that is quickly open to covering with all common floorings.
For use indoors.
- EMICODE EC 1PLUS: very low emission of volatile substances
- CE marking: CT − C25 – F7 (EN 13813)
- high flow performance and self-levelling
- fits mechanical application very well
- can be applied very quickly and economically with weber floor PumpTruck
- early ready for overlay with floorings
- suitable for thin-layer heated floor constructions
- resistant under chair castors (in accordance with EN 12529), when used in a layer, thickness ≥ 2 mm under floorings
- self-aerating: no need for a spike roller
- Comply with the national standards and/or guidelines relating to laying works of screeds. If not issued, and if necessary, request technical advice.
- In case of use on floating constructions and heating screeds, all walls and up stands (pillars, columns, etc.) within the floor should be separated from the floor construction with an 8 mm thick insulation foam strip; it must reach downwards from the substrate up to the upper edge of the final floor covering.
- Install movement joints for surfaces ≥ 40 m²; in case of side length > 6 meters, the optimal ratio between length and width should be 2 : 1.
- Arrange dummy joints for special room geometry (wall entry points, doorways, wall recesses) and heating circuits.
- Take over existing movement joints.
- The final surface must receive a covering and is not allowed to be left without.
- In case of doubt regarding the application, substrate or special structural features, request technical advice.
- Limits of use: do not use as a bonded screed.
- In the case of floating constructions, the compressibility of the insulation boards must not exceed 3 mm.
- Foot traffic on weber.floor 4345 over insulation boards is allowed after 8 hours at the earliest
- When gluing solid wooden planks, large-sized strip parquet (> 30 cm) or solid parquet with a considerable risk of dimensional change, an intermediate priming with the 1-comp. quickcuring PU primer weber.floor 4718 R. Solid wooden planks are glued with the 1-comp. STP shear-resistant parquet adhesive weber.floor 4836.
- Minimal and maximal screed thickness on separating membrane: ≥ 20 - 50 mm
- Minimal and maximal screed thickness on insulation boards: ≥ 25 - 50 mm
- In the case of floating thin-layer constructions, refer to the specific weber.floor system recommendations: “Thinlayer renovation on separating membrane - Renovation of old substrates offering no bonding key and heterogeneous substrates” or “Thin-layer warm water underfloor heating with heat conducting metal plates - weber.floor 4310, 4320 and 4365 on warm water underfloor heating elements with heat conducting metal plates”.
- Do not add any foreign substances during mixing, pumping and application.