webercol gress W – Bianco C2T 25 kg
webercol gress W è un adesivo premiscelato a base di cemento bianco, inerti selezionati e additivi specifici che migliorano adesione e lavorabilità. Classificazione C2T (adesivo migliorato, scivolamento verticale nullo) secondo EN 12004. Sacchi da 25 kg. Vantaggi Per piastrelle in gres e gres porcellanato di medio formato fino a 60×60 cm Idoneo per gres e gres porcellanato Per superfici verticali e orizzontali (pareti e pavimenti) Scivolamento verticale ridotto (T) Impieghi Posa di piastrelle porose e non porose di medio formato in interni, su pareti e pavimenti. Utilizzabile su superfici…
Colours: White
Description
webercol gress W is a ready-mixed white cement-based tile adhesive with selected aggregates and specific additives that improve adhesion and workability. Classification C2T (improved adhesive, reduced slip) according to EN 12004. Supplied in 25 kg bags.
Advantages
- For medium-size gres and porcelain tiles up to 60×60 cm
- Suitable for gres and porcelain stoneware
- For vertical and horizontal surfaces (walls and floors)
- Reduced slip on walls (T)
Uses
- Bonding porous and non-porous medium-size tiles indoors, on walls and floors.
- Can be used on waterproofed outdoor surfaces that are not in direct contact with the weather.
Not recommended
- Areas with extreme weather, frost or very high temperatures.
Product information
Technical data
| Brand | weber – Saint-Gobain |
|---|---|
| Classification (EN 12004) | C2T |
| Colour | bianco |
| Packaging | Paper bag, 25 kg |
| Units per pallet | 54 bags / pallet (1,350 kg) |
| Granulometria | 0.7 mm |
| Mixing water | 6.5–7 L per 25 kg bag |
| Consumption | 3–5 kg/m² (indicative – depends on the substrate and the application technique) |
| Layer thickness | up to 10 mm |
Working times
| Adjustment time | 20 min |
|---|---|
| Open time | 20 min |
| Pot life | 120 min |
| Light foot traffic / load | ≥ 24 h |
| Grouting | 24–48 h |
Performance
| Parameter | Average value | Unit |
|---|---|---|
| Transverse deformation | NA | – |
| Tensile adhesion after 28 days | ≥ 1 | MPa |
| Tensile adhesion after freeze–thaw cycles | ≥ 1 | MPa |
| Tensile adhesion after heat ageing | ≥ 1 | MPa |
| Tensile adhesion after water immersion | ≥ 1 | MPa |
Substrate preparation
- Air and substrate temperature during application and curing must be between +5 °C and +30 °C.
- Substrates must be sound, dry, clean and level. On old substrates or traditional mortars, pre-treat with a suitable primer.
- Concrete, cement screeds and cement-lime mortars must be at least 28 days old with residual moisture ≤ 1.5%.
- Treat lime-cement substrates with weberprim deep and concrete surfaces with weberprim 813, following their technical data sheets.
Applicazione
- Pour the 25 kg bag slowly into 6.5–7 L of clean water and mix with a low-speed electric mixer (or trowel) until smooth and lump-free.
- Let the mix rest for 5 minutes, then stir it again briefly.
- Apply a thin first coat with the flat side of the trowel to remove dust and regulate substrate absorption, then comb the adhesive with a notched trowel (max. 10×10 mm) chosen for the tile size.
- Press the tiles into place with a slight sliding movement and tap them so the whole surface is in contact with the adhesive.
- Tiles can be adjusted within 20 minutes. If a skin forms on the adhesive, re-comb it with the notched trowel; if a tile was not placed in time, remove the adhesive and apply fresh material.
- Do not exceed 20 minutes between spreading the adhesive and placing the tile (optimal conditions). Use the mixed material within 120 minutes.
- Do not load the tiles for at least 24 hours. Grout after 24–48 hours.
Tools
Mixing: electric mixer and a clean bucket. Application: notched steel trowel.
Shelf life
12 months in the original sealed bag, stored on pallets in a dry place away from direct weather. Protect from frost.
Safety
- Hazardous component: Portland cement. Causes serious eye damage and skin irritation; may cause an allergic skin reaction and respiratory irritation.
- Wear protective gloves, protective clothing and eye/face protection. If in eyes: rinse carefully with water for several minutes, remove contact lenses if possible and call a poison centre or doctor. If on skin: wash with plenty of soap and water. If inhaled: move to fresh air.
- Soluble chromium (VI) content is below 0.0002% of the total dry cement weight.
Disposal
Do not dispose of unused product or empty packaging outside designated waste facilities. See the safety data sheet and local regulations.
All values refer to standard conditions: 20 °C and up to 65% relative humidity.
