Mastic waterproofing one-component "Hydrostop"


  • For the installation of coatings operated under conditions of periodic exposure to water
  • Waterproof
  • Elastic
  • Covers cracks up to 1.5 mm
  • Can be used for heated floors
  • Easy application
  • Ready to use
  • For internal work only

Packing: 6 kg/12 kg

  • Application
  • Specifications
  • Features
  • Reviews

One-component waterproofing mastic PRG-04 is intended for installation of elastic, waterproofing coatings on floors and walls operated under conditions of periodic exposure to water (bathrooms, showers, bathrooms, kitchens and other public and industrial premises) before tiling. It can be applied to concrete, cement-sand screeds and plasters, cement-lime plasters, brickwork (the seams of the masonry must be completely filled with cement mortar), leveling compounds for floors, etc. When installing a warm floor, PRG-04 waterproofing should be applied only to the load-distributing layer (on the screed).

Not used as a finishing coating. For internal work only.

For external works and waterproofing of swimming pools, use other waterproofing mixtures of TM “Polyplast”

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Compositiona mixture of modified aqueous dispersions of polymers, fillers, functional additives.
Colourhomogeneous blue-gray paste
Density~ 1.4 kg / dm3
Mixture use temperaturefrom + 5 ° С to 30 ° С.
Ready to install ceramic tiles:after 16-24 hours (after applying the 2nd layer)
Water absorption coefficient, kg / m2 hour.no more than 0.15
Crack bridging ability:1.5 mm
Freshly applied waterproofing layer thickness
at a consumption of 1.4 kg / m2:
~ 1,0 mm
Drying time1st layer ~ 2 hours
2nd layer ~ 3 hours
Mixture consumption~ 1.4 kg / m2 (two layers)

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