Popular: Sikaflex · waterproofing · grout · data sheets
Porcelain tiles of 60 × 60 cm and larger, on floors and walls. They need a flat base, a C2TE flexible adhesive and full bedding by back-buttering, or they ring hollow and crack.
General guidance based on the manufacturer data sheets. Site conditions differ: confirm the system with MCT before you start. Where we do not name a product, ask us and we will confirm the right one.
Remove weak concrete and laitance. Cement bases must be at least 28 days old (SikaCeram-205 PK p.2). Deviation must be less than 5 mm under a 2 m straightedge. If not, level first with a mortar made with Sika Latex, MonoTop or SikaRep (SikaCeram-205 PK p.3).
SikaLatex® PK is used as bonding agent and sitemix mortar admixture for the following applications: Grouts and screeds, Patch repair mortars, Mansonry mortars, Renders, Tile adhesives. (TDS p.1)
SikaCeram-205 PK is classified C2TE with extended open time and is listed for all ceramic tiles including large-size porcelain (SikaCeram-205 PK p.1). SikaCeram-103 PK is class C1 TE (SikaCeram-103 PK p.1), so it is not offered for large-format tiles here.
SikaCeram®-205 PK has following uses: Laying all kind of ceramic tiles, even grès porcelain in large size, Laying marbles and natural stone, provided not sensitive to water, Indoor walls and floors, outdoor floors, Laying on water-based heating floors, Indoor over-tiling application on old tiles,… (TDS p.1)
Add 6.75–7.25 L of water per 25 kg bag (SikaCeram-205 PK p.2). Mix with a drill and paddle below 500 rpm, let it stand at least 5 minutes, then re-mix for 15 seconds. A free-fall concrete mixer is not suitable (SikaCeram-205 PK p.3). Pot life is about 4 hours and open time 25 minutes at +20 °C (SikaCeram-205 PK p.2).
Back-buttering must be used for tiles larger than 300 × 300 mm (SikaCeram-205 PK p.3). Use a 10 mm notched trowel for large tiles and double spreading (SikaCeram-205 PK p.2). Press each tile firmly into the fresh adhesive (SikaCeram-205 PK p.3).
SikaCeram-205 PK is used again here; data and quotation in step 2. Go to step 2
SikaCeram-205 PK is listed for indoor walls, and for outdoor floors only (SikaCeram-205 PK p.1). For large tiles on external walls, ask us. SikaCeram RSG 705 is an epoxy adhesive for vertical and horizontal use, indoors and outdoors (SikaCeram RSG 705 p.1).
The right product here depends on your site. We confirm it before naming it.
Epoxy grout SikaCeram-850 Design takes joints of 2–15 mm and gives coverage for 60 × 60 and 80 × 80 cm tiles (SikaCeram-850 Design p.1, p.2). SikaCeram-855 gives a sanded, matt finish in 1–5 mm joints, indoor wet areas only (SikaCeram-855 p.1, p.2). Cement grout SikaCeram-600 Tile Grout PK lists consumption for 600 × 600 mm tiles (SikaCeram-600 Tile Grout PK p.2).
Grouting tiles for the following interior residential and commercial building applications: Wet rooms, Shopping malls, Hospitals, Commercial / Industrial kitchens, Food industry, Swimming pools (indoors). (TDS p.1)
Suitable for grouting applications on most types of ceramic, porcelain and non-absorbent tiles for indoor wet areas. (TDS p.1)
For filling the spaces of homogeneous tile, ceramic tile, marble, granite, mosaic, and natural stone, over a range of applications as below: Floor and wall, Interior and exterior, Dry and wet area, For dry area, mix SikaCeram®-600 Tile Grout PK with water, Do not mix the fresh material to previou… (TDS p.1,2)
Keep traffic off for at least 24 hours (SikaCeram-205 PK p.3). Seal perimeter and field movement joints with a floor sealant, 10–40 mm wide at a 1:0.8 width-to-depth ratio, over a closed-cell polyethylene backer rod (Sikaflex PRO-3 p.2, p.3).
Horizontal and vertical interior and exterior sealing joint applications: Food industry, Cleanrooms, Sewage treatment plants, Tunnels Sealing horizontal and vertical joints for:, Floors, Pedestrian and traffic areas. (TDS p.1)
A starting point for a site proposal. Quantities, prices and the final specification follow a site visit or photos.
| Step | Product | Pack | Source |
|---|---|---|---|
| 1. Make the base flat and strong | SikaLatex PK | 05 ltr jerry can 20 ltr plastic can 200 ltr drum 1000 ltr IBC Bulk supply in tanker is… | TDS p.1 · June 2025, Version 02.01 |
| 2. Choose a C2TE adhesive | SikaCeram-205 PK | — | TDS p.1 · October 2023, Version 01.02 |
| 4. Back-butter and bed every tile | SikaCeram-205 PK | — | TDS p.1 · October 2023, Version 01.02 |
| 6. Grout the narrow joints | SikaCeram-850 Design | 400 ml double side-by-side cartridge | TDS p.1 · April 2025, Version 01.01 |
| 6. Grout the narrow joints | SikaCeram-855 | 350ML | TDS p.1 · September 2025, Version 03.01 |
| 6. Grout the narrow joints | SikaCeram-600 Tile Grout PK | 1 kg Pouch | TDS p.1,2 · June 2024, Version 01.01 |
| 7. Movement joints and protection | Sikaflex PRO-3 | 600 ml cylindrical foil pack | TDS p.1 · May 2021, Version 03.01 |
The data sheet requires back-buttering for tiles larger than 300 × 300 mm and for heavy loads (SikaCeram-205 PK p.3). It fills the back of the tile so it does not ring hollow.
Its data sheet lists wall and floor tiles, marble, terrazzo and mosaics, but does not name porcelain or large formats (SikaCeram-90 PK p.1). Ask us: it depends on site conditions. SikaCeram-205 PK names large porcelain (SikaCeram-205 PK p.1).
About 4–7 kg of powder per m² with a 10 mm trowel and double spreading (SikaCeram-205 PK p.2).
SikaCeram-205 PK is listed for outdoor floors, not outdoor walls (SikaCeram-205 PK p.1). Ask us: it depends on site conditions. SikaCeram RSG 705 is listed for exterior vertical use (SikaCeram RSG 705 p.1).
Steps and product facts are taken from the manufacturer data sheets (page cited). Products are named only where the data sheet confirms the use; quantities follow a site visit or photos. General guidance: check the data sheet or ask us before you start.