Bitumen mastic, water-based Teknomer 400 W

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Bitumen mastic, water-based Teknomer 400 W

Creates a seamless protective layer on the surface, protecting against groundwater and moisture.


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A modified single component bitumen mastic, water-based Teknomer 400 W with special polymers. Creates a seamless protective layer of structures and buildings from groundwater and moisture.


  • retaining walls and foundations
  • concrete terraced roof
  • the balconies and open terraces
  • galleries, drainage and drains, manifolds
  • open reservoirs for drinking water and swimming pools


  • completely ready to use
  • contains no solvents
  • can be used for vertical concrete surfaces
  • apply cold way
  • does not require heating and/or dilution
  • fast curing
  • creates a solid (seamless) insulation layer
  • water-based and has good adhesion to damp surfaces



Brown, black

Shelf life

12 months in dry environment in unopened container


18 kg bucket

Application temperature

( 5 ° C) – ( 30 °C)

Complete drying

5-6 hours (20 °C)

Dry mass residue

75 %

The temperature resistance of the cured material

(-25 °C) - ( 80 °C)

Method of application

Brush, roller, sprayer

The curing time of the working layer

1 hour at 20 ° C

Full drying time of mastic

24 hours at 20 ° C

Elongation to break



Surface for application should be cleaned from any oils, rust, detergents and other substances that prevent adhesion. If there are areas in the form of cracks, cavities on the surface - they must be repaired using the easy cement mixes Teknorep 300 and Teknorep 300 EX. The insulated surface must be dry and prepared. If, before applying TEKNOMER 400 dilatation of the design, it must first be insulated with tapes Teknomer Pah Band 120/70 and Teknobond 400 D.

Recommendations for the use

Before application mix with low speed mixer until a homogeneous mixture. The mixing time is not less than 5 minutes. The material is ready for use and requires no dilution with water or other liquids. Do not apply under direct sunlight.
Material ready-to-use, is applied to the surface with a wide brush or spray. Apply in two layers. The direction of deposition of each layer must be perpendicular to the previous one. The amount of time between coats for at least 1 hour. To increase adhesion between the layers, you can use fiberglass or reinforcing mesh.
After application protect surface from adverse weather conditions such as direct sunlight, strong wind, high air temperature (above 35 ° C), rain and frost. Equipment immediately after use must be cleaned with a solvent.

Product publications

Waterproofing internal corners in rooms with high humidity
Waterproofing internal corners in rooms with high humidity

It is recommended to additionally insulate the corners with special sealing inner corners, for example, made of synthetic rubber

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