weber.plan 813-20

Water demand:
approx. 5.2 liters/ 20 kg

Application thickness:
1 mm - 20 mm

Storage:
The product can be stored at least 18 months in its original unopened packaging, if kept dry and protected from moisture.

Fields of application

weber.plan 813-20 is used as self-levelling and quick-setting floor compound for levelling dimensionally stable floor substrates. It is mainly used as bonded system by manual or mechanical application on a large variety of substrates, such as cement and calcium sulphate screeds, mastic asphalt screeds, timber planks, OSB boards, chipboards and old load-bearing ceramic tiles. Also suited on top of heated screeds, electric underfloor heating elements and thin-layer warm water underfloor heating pipes (as bonded system).
It forms a load-bearing underlay for all common and demanding floor coverings, like ceramic tiles and factory natural stones, parquet, carpets, PVC coverings, vinyl or linoleum.
It can be used as wear layer (without surface covering) in a layer thickness ˃ 6 mm on mineral substrates in residential rooms.
Thanks to its low-stress hardening and excellent flow properties, the product can be applied in a single operation up to a layer thickness of 20 mm. For use indoors.

Main features

• EMICODE EC 1PLUS: very low emission of volatile substances
• CE marking: CT - C30 - F7
• resistant under chair castors (in accordance with DIN 12529) in layer thickness ≥ 1 mm
• for high-demanding floor coverings
• ideal substrate for XXL ceramic tiles
• also for heated floor constructions
• easily provides absolutely smooth floor surfaces
• high yield
• pumpable and ergonomic application with machine technology
• self-levelling without lap marks
• self-venting; no spiked roller is necessary
• crack-free and stress-free during setting
• quickly open to foot traffic and ready for floor covering
• can be directly used without covering in case of light mechanical loads

General notes

• Do not process already stiffened material.
• All characteristics mentioned in this data sheet are based on a temperature of +23 °C without draught and a relative humidity rate of 50%.
• Higher temperatures and lower humidity rates accelerate, whilst lower temperatures and
  higher humidity rates delay the setting process.
• In case of use in layer thicknesses > 10 mm on anhydrite screeds, use the 2-comp. epoxy resin primer weber.prim 807 and scatter oven-dried silica sand weber.sys Hartquartzmaterial (0.1 – 0.5 mm) up to saturation. After 16 - 24 hours, sweep away the excess sand.
• In case of use on floating constructions and on heated screeds all walls and upstands (pillars, columns etc.) within the floor should be separated 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.
• Mastic asphalt screeds must show a strength of at least class IC 10.
• For any information relating to application, substrate or special features of floor, request technical advice

Special notes

• In case of application in wet-duty rooms special measures for waterproofing should be taken, for ex. with weber.tec 822, weber.tec Superflex D 2 or weber.xerm 844 (bonded waterproofing layers).
• The laying of ceramic tiles and slabs with weber.xerm 844 additionally contributes to decoupling and impact sound reduction.
• Do not walk on primed timber floors with nail shoes for further processing.
• In case of wooden constructions, it is necessary to limit the application area; arrange dummy joints for special structural features and special room geometry i.e. wall entry points, doorways, wall recesses. Maximal size of each individual working section < 16 m².
• If used on electric underfloor heating elements or on thin-layer warm water underfloor heating pipes (as bonded system) a covering of the elements/pipes by weber.plan 813-20 of at least ≥ 5 mm must be provided.
• Maximal application thickness on mastic asphalt screeds: 5 mm.
• A too high water dosage will reduce the mechanical strengths and increases the risk of cracks and shrinkage.
• Use indoors only.