LANKO® Porcelanico Extra - C2 TE cementitious adhesive for porcelain stoneware
LANKO® Porcelanico Extra: cementitious adhesive for porcelain stoneware
LANKO® Porcelanico Extra is a polymer-modified cementitious tile adhesive mortar formulated for the most difficult tile to bond: very low absorption porcelain stoneware. It is classified C2 TE according to EN 12004-2:2017 and maintains an adhesion ≥ 1 N/mm² initially as well as after water immersion, heat ageing and freeze-thaw cycles.
On a porous substrate the water is drawn into the substrate; on porcelain it has nowhere to go, and the adhesive has to grip through chemical adhesion. That is why this product contains a reinforced polymer content, an extended open time of about 30 minutes and slip class T (≤ 0.5 mm), so you can install on vertical surfaces without the tile sliding down.
✅ Main advantages
Designed for low absorption: grips rectified porcelain stoneware and tiles with practically zero absorption.
C2 adhesion: ≥ 1 N/mm² under the four test conditions of the standard.
Extended open time (E): about 30 minutes at +20 °C, a real margin for adjusting tiles.
Reduced slip (T): ≤ 0.5 mm, vertical installation without wedges.
Low shrinkage: working thickness of 3 to 15 mm with a flat finish.
White and grey: white for light-coloured and translucent tiles, grey for opaque stoneware and ceramic.
🏗️ Recommended applications
Interior and exterior floors with porcelain stoneware and very low absorption tiles.
Interior wall coverings with medium-format stoneware and ceramic.
Stable concrete, mortar and render substrates, in new builds and renovations.
High-traffic and weather-exposed areas that require adhesion to be maintained after freeze-thaw.
📋 Technical specifications
Chemical base: cementitious mortar with polymers
Classification: C2 TE · EN 12004-2:2017 · CE marking
Colours: white · grey
Fresh mortar density: ~1.60 kg/l at +20 °C
Mixing water: 25 - 31.5 % · 6.25 - 7.8 l per 25 kg bag
Open time: ~30 minutes at +20 °C · ≥ 0.5 N/mm² at 30 minutes
Slip: class T · ≤ 0.5 mm
Application thickness: 3 - 15 mm
Initial adhesion: ≥ 1 N/mm²
Adhesion after water immersion: ≥ 1 N/mm²
Adhesion after heat ageing: ≥ 1 N/mm²
Adhesion after freeze-thaw cycles: ≥ 1 N/mm²
Application temperature: +5 °C min. · +35 °C max.
Coverage: ~3 kg/m² with single buttering · ~5 kg/m² with double buttering
Shelf life: 12 months from the date of manufacture
🧰 Instructions for use
Check that the substrate is clean, cohesive, free of laitance and release agents, and that shrinkage has already taken place.
Pour in 6.25 - 7.8 litres of clean water and add the 25 kg bag, mixing at low speed until you get a lump-free paste.
Let it rest for a few minutes and remix briefly; do not add more water afterwards.
Comb with a notched trowel suited to the tile size, in areas that you can cover within the 30 minutes of open time.
Set the tile with pressure and a slight movement perpendicular to the ridges; for exterior floors and large formats, use double buttering.
Lift a tile every few metres to check that the transfer to the back is complete.
Clean the joints while fresh and grout once the adhesive has hardened.
🛡️ Standards and certificates
EN 12004-2:2017 - Adhesives for ceramic tiles. C2 TE classification.
CE marking in accordance with the Construction Products Regulation.
📦 Supply formats
25 kg bag, white
25 kg bag, grey
Units per pallet not stated in the Product Data Sheet
💡 Professional tip: this adhesive is C2 TE, not C2 TE S1. That means it is not deformable. If the substrate is underfloor heating, a recent floor slab or a terrace with large temperature swings, upgrade to LANKO® Flexible (C2 TE S1); if the substrate is stable, this one performs just as well and at a better price. And do not mix more than you can lay in half an hour: reviving the paste with added water ruins the adhesion.
Technical data according to the Product Data Sheet of LANKO® Porcelanico Extra from Sika España.
Frequently asked questions
What tiles is LANKO® Porcelanico Extra designed for?
It is formulated for very low absorption porcelain stoneware, including rectified tiles. It is a C2 TE cementitious adhesive according to EN 12004-2:2017 with an adhesion of at least 1 N/mm² under the four test conditions.
Is LANKO® Porcelanico Extra deformable?
No. It is C2 TE, not C2 TE S1, so it is not deformable. For underfloor heating, recent floor slabs or terraces with large temperature swings, the data sheet itself recommends a deformable adhesive; on stable substrates it works well.
How much adhesive do I use and at what thickness is it applied?
Coverage is about 3 kg/m² with single buttering and about 5 kg/m² with double buttering, with an application thickness of 3 to 15 mm. The open time is about 30 minutes at +20 °C.
In what colours and format is LANKO® Porcelanico Extra sold?
It is sold in 25 kg bags, in white or grey. White is recommended for light-coloured and translucent tiles and grey for opaque stoneware and ceramic.
Frequently asked questions about Sika products (mortars, adhesives and sealants)
How do I know which size and quantity to buy?
Each product page includes the approximate yield or consumption (for example kg/m² or metres of bead per cartridge) in the "Technical specifications" section. Calculate the surface area or thickness of your project and multiply by that consumption to find out how many units you need. If in doubt, contact us with the measurements of your job.
Where can I find the complete technical data sheet (Product Data Sheet)?
The description of each product already includes the main technical data (strengths, setting times, application temperature, applicable standards, etc.), taken from the official Sika Spain Product Data Sheet. If you need the complete PDF data sheet or the safety data sheet (SDS), write to us and we will send it to you.
Do these products comply with European regulations (CE marking)?
Most Sika products carry the CE marking in accordance with the relevant European standard (for example EN 1504 for structural repair, EN 12004 for tile adhesives, EN 13888 for grouts or EN 15651 for sealants). The exact standard for each reference is detailed in the "Standards and certificates" section of its product page.
What protective equipment do I need to apply them?
It depends on the product: cement-based mortars and adhesives are usually irritating to skin and eyes (gloves, goggles and a mask are recommended), while polyurethane sealants and adhesives require good ventilation. Always check the safety section of the product page and its safety data sheet (SDS) before use.
How should I store these products and how long do they last unopened?
Shelf life and storage conditions (temperature, humidity, protection from light) vary depending on the type of product (cementitious, polyurethane, epoxy, etc.) and are stated on the packaging and in the data sheet of each reference. In general, it is advisable to store in a dry place, protected from frost and direct sunlight.
Can I return a Sika product if I haven't used it?
Yes, you have 14 calendar days from receipt to exercise your right of withdrawal, provided the product is in its original packaging and has not been opened. The cost of return shipping is borne by the customer. Contact us at info@vetonek.com or via WhatsApp on +34 629 571 735.
How long does my order take to arrive?
We ship to mainland Spain, the Balearic Islands, Portugal and the other European countries we serve (France, Belgium, the Netherlands, Germany, Italy, etc.). The estimated delivery time is 3 to 9 working days (no shipping to the Canary Islands, Ceuta or Melilla).
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