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FLK Liquid

The blaugelb FLK Liquid is a one-component liquid plastic based on poly­urethane for sealing floor-level elements in areas in contact with the ground, balconies and loggias in accordance with DIN 18531 and DIN 18533. The waterproof sealing compound is used for application on the existing, expertly processed waterproofing in the base area of the façade.

The blaugelb FLK Liquid is part of the product range from the blaugelb FLK Sealing System and intended for use on surfaces.

Product benefits:

  • 1C product, ready for use
  • Bridges the gap between waterproofing of buildings and assembly of the elements
  • Very good processability
  • Solvent and isocyanate free
  • Odourless, waterproof and highly elastic
  • UV-resistant
  • To be used especially with the products of the blaugelb FLK Sealing System
  • For sealing across surfaces, even vertically
  • Moisture and temperature-resistant
  • Compatible with all blaugelb sealing products
  • Compatible with all blaugelb product systems
  • Suitable for standard construction surfaces*
  • Building material class E (DIN EN 13501-1)
  • Tested by MPA
  • Manufactured under an ISO 9001:2015-compliant quality system
  • Tested to be low in pollutants according to EMICODE EC1 Plus

* See “Substrate preparation” list, carry out suitable pretests

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Product name PU Item no.

blaugelb FLK Liquid 7 kg

7 kg bucket


blaugelb FLK Liquid 14 kg

14 kg bucket



blaugelb Toolbox

1 piece


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Processing temperature:
(substrate and surroundings)

+5 °C to +40 °C 1

Relative humidity for processing:

Min. 30 %

Stirring time:

Min. 2 minutes

Rainproof after:

Approx. 60 min ²

Can be coated over after:

Approx. 8 h ²

Cured after:

Approx. 2 days ²


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1 Untergrundtemperatur muss min. 3°C höher als Taupunkt sein
² bei 23°C, 50% rel. LF

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