Liquid Coating PCI Lastogum 4 Kg Grey
Liquid Coating PCI Lastogum 4 Kg Grey
Liquid Coating PCI Lastogum 4 Kg Grey
Liquid Coating PCI Lastogum 4 Kg Grey
Liquid Coating PCI Lastogum 4 Kg Grey
Liquid coating PCI Lastogum 4 kg Grey
Liquid coating PCI Lastogum 4 kg Grey
Liquid coating PCI Lastogum 4 kg Grey

Liquid coating PCI Lastogum 4 kg Grey

Protective waterproofing liquid for wet rooms 4 kg in grey control colour

See parts included Technical specification

PCI Lastogum 4kg grey is a waterproof, flexible, protective coating used under ceramic coverings in showers and bathrooms. This one component, solvent-free synthetic resin is a perfect solution 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 by very fast drying and incredible leak tightness. The second layer can be applied just after one hour, tilling possible after a further 2 hours. The product is available in two colours: grey and white, for easier visual control of the layer thickness. The dry layer thickness is approx. 0.7mm, which works perfectly in places where we want to avoid increasing the height.

PCI Lastogum 4kg Grey is a perfect choice in case sealing only connections and gaps between floor/wall and wetroom. 4kg container will cover approx. 3.5 m² (Consumption: approx. 1.1 to 1.2 kg/m²).

Check stock live

Amount of products available off-the-shelf. If order is placed before 3pm, it will be shipped same day with free next business day delivery.

Quantity available in stock for next day delivery:

  • Liquid coating PCI Lastogum 4 kg Grey x 16
Total available in stock: 16
Same day shipping and delivery on Monday if you order in next 0 hours 00 minutes and 00 seconds
Tax included
Amount Of Product Sales 4 Sold during the last 90 days
Amount Of Product Views 3 Views during the last 24 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 pressurized 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 levelers such as PCI Polycret 5 and/or PCI Nanocret FC and self-levelers, e.g. PCI Periplan Fein and PCI Periplan.

Application Of Undiluted PCI Lastogum To The Substrate By Roller, Brush Or Trowel. Application of undiluted PCI Lastogum to the substrate by roller, brush or trowel.

approx. 3.5 m²
Material base
Solvent-free synthetic resin dispersion
Single component
Approx. 1.5 g/cm³
Control colour
Packaging size
4 kg
Shelf life
min. 12 months; dry and protected from frost
approx. 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 layer
approx. 1 hour
Evaporation time after 2nd layer
approx. 1 to 2 hours

Preparation of substrate

The substrate must be structurally sound, dry (cement screed 4%, anhydrite flowable screed 0.5%, measured with CM meter), clean and free from oil, grease and other residues which should be removed by sand-blasting, brushing or shotblasting (Blastrac) if necessary. The practically smooth surface must be free from honeycombs, gaping cracks or ridges. Prime gypsum-based substrates and plasterboards beforehand with undiluted PCI Gisogrund. Prime absorbent mineral substrates with PCI Gisogrund, diluted 1 : 1 with water. Prime dry, tightened particle boards with PCI Wadian. The primers must have cured before applying PCI Lastogum.

Application procedure

  1. Apply undiluted PCI Lastogum by roller (lambskin roller), brush (wall brush, float), or trowel to the substrate covering the entire surface. A minimum of two layers is required.
  2. Place PCI Pecitape 10 x 10 and/or PCI Pecitape 42.5 x 42.5 over pipe culverts and floor drains, in corner joints and floor/wall junctions press PCI Pecitape 120 into the first layer of PCI Lastogum. Projecting edges of the fabric are covered by the second layer.
  3. Any further layer is applied when the first layer is dry. We recommend to apply the first layer with PCI Lastogum grey and the following layer(s) with PCI Lastogum white for better coverage control. The applied layer is too thin if the previous colour is visible; this should be avoided.
  4. When PCI Lastogum has cured, tiles and flagstones can be laid on vertical and horizontal areas using PCI Nanolight, PCI Flexmörtel or PCI Flexmörtel-Schnell. Calibrated natural stone should be laid using the adhesives for natural stone PCI Carraflex and/or PCI Carralight

Please note:

  • PCI Lastogum is not recommended for outdoor use and waterproofing measures in swimming pools. Use the crack-bridging waterproofing slurry PCI Seccoral for these purposes.
  • Do not apply PCI Lastogum at substrate temperatures below +5 °C and above +25°C.
  • The protective layer can be exposed to foot traffic after 2 hours at the earliest when applying two layers.
  • We recommend to apply the first layer of PCI Lastogum in grey and the second one in white for better coverage control. The first layer must not be visible.
  • In-wall fittings which can be integrated into the water-impermeable protective layer of PCI Lastogum using PCI Pecitape 42.5 x 42.5 are available from e.g. Hansa or DAL, thin-bed floor drains are available e.g. from Wiper.
  • The waterproofing collar PCI Pecitape 10 x 10 should enclose the pipe (not the plug which will be removed later), otherwise the pipe must be extended beyond the area to be waterproofed by inserting a spacer.
  • The connection joint at the edge of floating screeds must be free from mortar and waterproofing slurry to avoid acoustical bridges. We recommend to leave an area free from PCI Lastogum, i.e. at least 10 mm in horizontal and vertical direction at the wall/floor connection (see detailed drawing). Possible contamination on the barrier strip should be thoroughly removed before inserting the waterproofing tape.
  • Tools should be washed with water immediately after use. When the product has cured it can only be removed by mechanical scraping.
  • Shelf life: min. 12 months; dry and protected from frost, no permanent storage over +30 °C.
  • The waterproofing layer must also be applied below and behind the shower base and bathtub if the surrounding area is sensitive to moisture.
PCI Lastogum Installation Instructions
Waterproofing - Floor - Drain - Diagram
Waterproofing - Wall - Diagram

Documents available below are available to everybody for free to download. They can be open in high quality on your computer and be printed for further use.

Lastogum Installation InstructionsLastogum installation instructions Waterproofing Wall DiagramWaterproofing a wall Floor Wall Connection DiagramWaterproofing floor-wall connection Waterproofing Floor Drain DiagramWaterproofing floor drain

No reviews
Hi, can you please tell me if I order today when can it be delivered to Kent Paul

Dear Paul,

This product is available off-the-shelf, so if you order it before 3 o'clock it will be shipped same day with next day delivery.

I am happy to help if you have any other questions.

Kind regards


020 7193 0953

Are you able to ship to Australia? What would the cost be? Thanks


How many of them would you like to buy? Would this ba an order for a single product or do you want to order more of them, a pallet for example?

I think shipping is possible, what's the price and time acceptable for you that's the question.

Kind regards

David 020 7193 0953

hi do you do delivery to Perth Western Australia 6110 and if so how much. Thanks


How many of them would you like to buy? When do you need this shower tray? This is a new product in our store and we do not have it in stock yet, so the delivery of this product takes longer because it is produced only after placing the order. Production and delivery can take up to 25 days.

Please, let us know how many of them you require and we will prepare a delivery quote.

Kind regards

Agnes D.
Customer service

What are your office opening hours ?Are you open on an Saturday please ?


We are not working during weekends, sometimes we do reply to emails and phone calls.

You can visit our Rotherham warehouse from Monday to Friday, 9am - 6 pm.

Let me know if you have any questions about our products or service.

Kind regards

Adam 017 0927 3601

Do you sell the tanking liquid separately?


Yes, tanking liquid is available separately, however it's less cost efficient. Waterproofing kit is available at comparable price and contains materials that you will probably need to use anyway.

There's special category in our store: Tanking liquid.

I am happy to assist if you have any further questions.

Kin regards

David 020 7193 0953

If I order the item now. When will it come?

Hi Andrea,

It's too late for us to ship it today, but if you ordered it now we would ship it tomorrow with next day delivery.

Orders placed before 3 o'clock are shipped same day. After 3 o'clock on the next business day.

Kind regards

David 020 7193 0953

how long after manufacture can i use it. I've got 2 bags that i purchased from you last august 1 batch number 21/18. and 1 29/18. thanks

Dear Daniel,

Shelf life of the Nanofug Premium is 12 months, therefore as long as it's not been opened it can still be used within several months.

If the bags have been opened they are probably no longer usable and you will need to supply a new product.

I will be happy to assist if you have any questions.

Kind regards

David 020 7193 0953

We have the wiper tanking kit and have the instructions for the liquid and primer but nothing that says how the sealing tape/membrane is applied to this layer ? Ie: do we need to let it tac or does it go straight onto the tanking liquid ?Any advise ...

Dear Tracey,

Sealing membrane should be applied after applying first layer of tanking liquid. It works as a great adhesive to stick sealing membrane. If the first layer is already dry, you can use tile adhesive which also works well.

Everything should be covered with another tanking liquid layer afterwards.

Kind regards

David M 020 7193 0953

How do I determine the size of waterproofing kit I might need?

Dear Sean,

Joints between the tray and rest of the floor and the walls is the most important part that needs to be sealed off 3 m2˛ of waterproofing kit is enough for that, should also last to cover the tray itself with it as well with 2 coats.

If you wanted to waterproof more space, maybe even entire floor, then you should go for 6 m2˛.

I will be happy to help if you have any questions.

Kind regards

David 020 7193 0953

If I ordered 5L of PCI Gisogrund before 12.00 midday today what is the best delivery time you can provid to NP20 5AH

Dear Ken,

You can place the order before 3 o'clock to have it shipped same day.

The best what we could do is tomorrow before 9 am, but there would be additional £20 delivery fee.

We could also send it for £10 with before noon delivery.

Lastly for free for just tomorrow delivery.

Same applies for packaging of 10l. Please call me to arrange the order.

I will be happy to assist if you have any questions.

Kind regards

David 020 7193 0953

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