Popular: Sikaflex · waterproofing · grout · data sheets
Ceramic, brick-slip and stone-look tiles on outside walls face sun, rain and building movement. Use an adhesive whose data sheet allows outdoor walls, grout for exterior use, and seal the facade movement joints.
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.
Surfaces must be clean, free from grease, oil and loose particles, and as true and flat as possible. Fill blowholes with SikaTop or MonoTop mortars (SikaCeram-90 PK p.2). Heavy stone cladding on high facades is a structural fixing question and needs an engineer's design.
SikaCeram-90 PK fixes wall tiles and is suitable for indoor and outdoor use, but not on gypsum (SikaCeram-90 PK p.1, p.2). SikaCeram RSG 705 is an epoxy adhesive for interior and exterior vertical use (SikaCeram RSG 705 p.1). SikaCeram-205 PK is listed for outdoor floors, not outdoor walls (SikaCeram-205 PK p.1): ask us before using it on a facade.
SikaCeram® RSG 705 is used wherever a high degree of chemical resistance and excellent mechanical properties are required, such as: Food production: meat, fish, vegetable and fruit processing, canning areas, dairies and bakeries, Industrial kitchens and catering facilities, Electrical substations… (TDS p.1)
The right product here depends on your site. We confirm it before naming it.
Wet absorbent concrete to a saturated surface-dry condition first (SikaCeram-90 PK p.2). Apply between +5 °C and +40 °C. Cover only the area you can tile in 15–30 minutes (SikaCeram-90 PK p.2). In hot, windy weather, use light water fogging for 48 hours after final set, hessian or a water-based curing compound (SikaCeram-90 PK p.2).
SikaCeram-600 Tile Grout PK is listed for exterior walls and floors (SikaCeram-600 Tile Grout PK p.1). Never mix it with salty water (SikaCeram-600 Tile Grout PK p.2). Epoxy grouts SikaCeram-850 Design and SikaCeram-855 are for interior use only (SikaCeram-850 Design p.1; SikaCeram-855 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 movement joints at floor levels and building joints. Seal them with an elastic facade sealant over a closed-cell polyethylene backer rod at a 2:1 width-to-depth ratio (Sikaflex AT Facade p.2; Sikaflex Construction AP p.2). Do not use these two on natural stone (Sikaflex AT Facade p.3; Sikaflex Construction AP p.3). For stone, Sikasil-715 WS lists natural stone joints, after checking with Sika (Sikasil-715 WS p.1).
Sikaflex® AT Facade is designed for joint sealing of movement and connection joints, porous and nonporous substrates such as concrete, brick, steel metals. (TDS p.1)
Sikaflex® Construction AP is designed for movement and connection joints on porous substrates as well as indoor and outdoor general sealing applications. (TDS p.1)
Sikasil®-715 WS is designed for weather proofing and sealing applications where durability under severe conditions is required. (TDS p.1)
Sikagard-700 S PK is a clear water repellent for absorbent concrete tiles, brickwork, cement render and natural stone (Sikagard-700 S PK p.1). Test on stone first, because slight darkening can occur (Sikagard-700 S PK p.2).
Sikagard®-700 S PK is used as water repellent and colourless protective surface treatment on absorbent exposed materials such as concrete, cementitious rendering, concrete tiles, fibre cement, brickwork (clay and lime sand, non-vitrified), natural stone. (TDS p.1,2)
A starting point for a site proposal. Quantities, prices and the final specification follow a site visit or photos.
| Step | Product | Pack | Source |
|---|---|---|---|
| 2. Choose an adhesive for outside walls | SikaCeram RSG 705 | — | TDS p.1 · September 2024, Version 02.01 |
| 4. Grout for exterior use | SikaCeram-600 Tile Grout PK | 1 kg Pouch | TDS p.1,2 · June 2024, Version 01.01 |
| 5. Seal the facade movement joints | Sikaflex AT Facade | — | TDS p.1 · May 2021, Version 02.01 |
| 5. Seal the facade movement joints | Sikaflex Construction AP | — | TDS p.1 · May 2021, Version 01.01 |
| 5. Seal the facade movement joints | Sikasil-715 WS | 300 ml cartridge, 12 cartridges per box | TDS p.1 · May 2025, Version 03.01 |
| 6. Water-repellent finish on absorbent facades | Sikagard-700 S PK | 1000 ltr IBC | TDS p.1,2 · August 2026, Version 01.01 |
Its data sheet lists indoor walls and outdoor floors, not outdoor walls (SikaCeram-205 PK p.1). Ask us: it depends on site conditions. SikaCeram-90 PK is listed for indoor and outdoor use (SikaCeram-90 PK p.1).
SikaCeram-600 Tile Grout PK, which is listed for exterior use (SikaCeram-600 Tile Grout PK p.1). SikaCeram-855 is not suitable for external use (SikaCeram-855 p.1).
On some stones a slight darkening can occur, so test first (Sikagard-700 S PK p.2).
Sikaflex AT Facade can be over-painted with most facade paints after a compatibility trial (Sikaflex AT Facade p.1, p.3). Sikasil-715 WS cannot be over-painted (Sikasil-715 WS p.3).
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.