Liquid coating PCI Lastogum 25 kg Grey


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£ 150.99

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PCI Lastogum 25kg grey is a waterproof, flexible, protective coating used under ceramic coverings in showers and bathrooms. This one component, solvent-free synthetic resin is perfect solution to for light complex waterproofing in your wetroom. Recommended usage on substrates sensitive to moisture and the absorbent mineral surfaces. Dedicated for applying indoors - for e.g. bathroom or kitchen walls and floors.

PCI Lastogum, compared to competitive products, characterized with very fast drying and incredible leak tightness. Second layer can be applied just after one hour, tilling possible after a further 2 hours. Product is avaiable in two colours: grey and white, for easier visual control of the layer thickness. Dry layer thickness is approx. 0.7mm, which works perfect in places where we want to avoid increasing the height.

If you want to tank your entire bathroom area, PCI Lastogum 25kg Grey should be sufficient to cover standard wetroom size and make walls or floor waterproof. 25kg container will cover approx. 21.5 m² (Consumption: approx. 1.1 to 1.2 kg/m²).

Coverageapprox. 21.5 m²
Material baseSolvent-free synthetic resin dispersion
ComponentsSingle component
DensityApprox. 1.5 g/cm³
Control colourGrey
Packaging size25 kg
Shelf lifemin. 12 months; dry and protected from frost
Consumptionapprox. 1.1 to 1.2 kg/m²* (≙ approx. 0.8 l/m²)
Thickness of wet film (min. 2 layers)approx. 0.7 mm
Working temperature+5 °C to +25°C (substrate temperature)
Evaporation time after 1st layerapprox. 1 hour
Evaporation time after 2nd layerapprox. 1 to 2 hours

Features and benefits:

  • Water impermeable, protects moisture-sensitive substrates.
  • Flexible, compensates tensions, deformations of the substrate, variations in temperature and vibrations.
  • Crack bridging, high reliability even if cracks in the substrate form at a later stage.
  • Ready-to-use, easy to apply by roller, brush or trowel.
  • Two-coloured, for easier visual control of the layer thickness.
  • Resistant to lime water, ensures adhesion between protective coating and mortar if the adhesive bed is constantly submerged in water.
  • Solvent free, no harmful risk to the environment, can be used without any risk to your health.
  • Meets the test principles to issue an official test certificate for bonded waterproofing in combination with the adhesives PCI Carraflex, PCI Carraflott NT, PCI Carralight, PCI Carrament, PCI Flexmörtel, PCI Flexmörtel-Schnell, PCI FT Rapid, PCI FT Extra, PCI FT Flex, PCI Nanolight, PCI Nanoflott light, PCI Rapidflott, PCI Rapidlight, PCI Nanolight White. All test certificates are available under

Fields of application:

  • Liquid waterproofing membrane to be applied by roller, brush or trowel.
  • For indoor use.
  • For walls and floors.
  • For applications not covered under the official test certificates to ZDB leaflet „Bonded waterproofing”, for use class A 0.
  • Use class A Wall in accordance with the test principles to issue an official test certificate.
  • For use up to use class W4 to Austrian standard B 3407.
  • For wet areas not exposed to pressurised water, such as bathrooms, showers in residential buildings, hotels, old people's homes and hospitals.
  • On moisture-sensitive, absorbent substrates, e.g. plaster, gypsum blocks, gypsum fibre boards, plasterboards, particle boards, anhydrite screeds in moist and wet areas subject to usual domestic use.
  • On mineral absorbent substrates, e.g. concrete, screed, render, aerated concrete, cementitious wall levellers such as PCI Polycret 5 and/or PCI Nanocret FC and self-levellers, e.g. PCI Periplan fein and PCI Periplan.

Application of undiluted PCI Lastogum to the substrate by roller, brush or trowel.

Opinions, reviews and tests for:
Liquid coating PCI Lastogum 25 kg Grey
Average grade: 4
Ratings number: 4
100% Customers recommend this product.
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Customer product reviews
Rated 4.00 on the scale 1 - 5 based on 4 customer reviews

lastogum foil

extremely overpriced brand

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Verified purchase


seals like a champ although a bit pricey

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Super fast

The fastest liquid foil I used. I can continue job after 1.5 hour.

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shower area waterproofing

very efficient and easy to apply

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