749 Egalisatie mortel Niveland 30R CT C35 F6 25 Kg Grijs

749 Egalisatie mortel Niveland 30R CT C35 F6 25 Kg Grijs

24.79 Ex. BTW

High performance self-levelling mortar, for preparing interior floors that once they have hardened, are suitable for receiving all types of floor finishes: ceramic tiles, parquet, carpets, etc. Pumpable. Thickness from 2 mm to 15 mm, or 15 mm to 30 mm with the addition of aggregate.

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Verwachte leverdatum bij verzending: 19 april 2021 - 20 april 2021
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Beschrijving

Composition

Product based on special cements, selected aggregates, resins and additives.

Features and applications

  • Levelling uneven interior floors.
  • High mechanical resistance and excellent adherence over cement mortar and concrete.
  • Can be applied manually or by pump.
  • Good workability.
  • For smoothing floors in interior residential buildings with foot traffic before installing the final floor covering: ceramic tiles, parquet, carpet, PVC, lino, etc.
  • Very smooth finish and durable hard surface.
  • Suitable for floors with underfloor heating.
  • Up to 30 mm thick with added aggregates.

Substrates

  • Concrete, cement or floors with appropriate or similar strength. For use on other substrates, please consult our technical department.
  • Substrates must be resistant, stable, sound and clean, free of dust, demoulding agents, organic products, etc.
  • If necessary, prepare the substrate mechanically so that the surface if free from grout and has the appropriate porosity.
  • Before applying NIVELAND 30 repair any cracks and/or fissures with products from the Niveland, Paviland or Morcem Rest ranges, according to the nature of the substrate and type of repair to be carried out.
  • Apply the primer Paviland Prymer R to avoid any air bubbles in the covering and to improve the adherence of the substrate.
  • Before applying the paste, ensure that the residual humidity is below the recommended level (lower than 3%).

Instructions for use

With a pumping machine:
  • Use a mixing pump in 2 stages, adding water until the required fluidity has been obtained.
  • Spread the product with a levelling trowel until the required thickness has been obtained.
By manual mechanical mixing.
  • Mix the product with water (6 – 6.5 litres per 25 kg bag) mechanically, with a low speed mechanical mixer (approx. 500 rpm) until a uniform mixture without lumps has been obtained. It is essential to add the exact specified amount of water to avoid product separation, shrinkage and lowering of strengths.
  • Let the mixture stand for 2 minutes and remix.
  • Pour the mixed product over the fixing substrate and spread with a levelling trowel until the desired thickness has been obtained.
  • In both cases it is recommendable to apply with a spiked roller, briskly, in both directions so as to avoid trapped air.
  • The minimum recommended thickness is 2 mm and the maximum is 15 mm applied in one single coat.
  • It is possible to use a thickness of between 15 and 30 mm. In which case, add 30% (7.5 kg per 25 kg bag) of quartz sand, grain size 0.6 – 1.0 mm or 1.0 – 2.0 mm. The addition of aggregate makes the mortar lose some of its “self-levelling” properties.
  • Respect structural joints and carry out perimeter and portioning joints.
  • NIVELAND 30 must be protected, as it is not an appropriate material to remain uncovered.

Cautions and recommendations

  • Do not apply in temperature under 5ºC nor above 30ºC.
  • Do not apply when there is a risk of frost, strong wind or direct sun.
  • Not recommended for exterior use.
  • Do not apply on floor with humidity or with a risk of having it.
  • Use gloves or protective goggles when applying product. Keep out of the reach of children.
  • The only possible addition is that given in the user instructions for thicknesses above 15 mm.
  • Once the product has been mixed and the resting time has occurred, do not add additional water.
  • For floors larger than 20 m2 or longer than 10 lineal metres, it is advisable to make partitioning joints, delimiting panels with 6 mm joints that can be sealed with PUMALASTIC MS or PU.
  • Movement joints on the original substrate must be respected and permiteral joints made.
  • The surface coat must be protected from drying too quickly, especially in conditions with high temperatures and/or strong winds.
  • Before laying the final flooring check the residual humidity of the floor and confirm it is adequate for the type of flooring to be installed.
Application in floors with underfloor heating
  • The heating system should be switched off at least 48 hours before the application.
  • The heating system should be switched on gradually by increasing the temperature in 2-3 ° C intervals until the operating temperature is reached. This operation must be performed in stages for a period of 48 hours.
  • Drying times must be respected before switching on the heating system. At least 48 hours.

Extra informatie

Weight 25 kg
Appearance

Grey Powder

Open time

20 mins.

Adhesion

>1.5

Expansion - Shrinkage

< -0.3

Trafficable in (*)

2 hours

Sanding time (*)

4 hours

Covering time (*)

Tiles or carpet: 6 hours
Parquet floor or synthetic covering: 24 hours

Compressive strength

>5 N/mm2 (6 hours)
>15 N/mm2 (24 hours)
>35 N/mm2 (28 days)

Approximate performance

1.65-1.75 Kg/m2 and mm of thickness

Classified according to UNE EN 13813

CT C35 F6

Thickness of application without the addition of aggregate

2 to 15 mm

Thickness of application with the addition of aggregate

15 to 30 mm

(*)

(*): The times refer to a temperature of 23ºC and 55% relative humidity. These are much shorter in higher temperatures and longer in lower ones.

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