Kerakoll H40 Advanced Grey Adhesive Rapid Setting (Select Quantity)
Kerakoll H40 Advanced Grey Adhesive Rapid Setting (Select Quantity)
H40 Advanced — Coverage Calculator
Kerakoll Rapid Set Gel-Adhesive · C2F TE S1 · 20 kg bags · Grout after ~3 hrs
Select your adhesive colour, enter your area, compressed bed depth and wastage to calculate how many 20 kg bags of H40 Advanced you need. Compressed bed depth range: 2–15 mm. Typical notched trowel gives ≈ 50% of notch depth after compression (e.g. 6 mm notch ≈ 3 mm bed).
Select ColourTotal required
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20 kg bags
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kg per m²
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Based on Kerakoll TDS (Jan 2025). Coverage varies with substrate absorption, tile back profile and trowel technique. This calculation is for estimation only — always round up to the nearest full bag.
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| Type | Adhesive |
|---|---|
| Brand | Kerakoll |
| Coverage | Coverage per mm thickness: Grey (mixing ratio 23%) ? 1.3 kg/m2 White (mixing ratio 28.5%) ? 1.2 kg/m2 |
Kerakoll H40 Advanced Grey Rapid-Setting Gel Adhesive 20kg
Kerakoll H40 Advanced Grey is a professional rapid-setting gel tile adhesive designed for high-performance wall and floor tiling. Developed with Kerakoll’s advanced gel technology, it offers excellent adhesion, flexibility and workability for modern tile installations, including large-format porcelain tiles, ceramic tiles, mosaics and natural stone.
Suitable for internal and external use, H40 Advanced Grey is ideal for bathrooms, wet rooms, kitchens, underfloor heating systems, balconies, terraces, swimming pools and commercial projects where strength, speed and reliability are essential.
Key Features
- Rapid-setting grey gel adhesive for professional tile installations.
- C2F TE S1 classification for improved adhesion, flexibility and performance.
- Suitable for porcelain, ceramic, mosaics, marble and natural stone.
- Ideal for walls and floors, internally and externally.
- Excellent for large-format tiles and demanding substrates.
- Compatible with underfloor heating systems.
- Suitable for wet rooms, bathrooms, swimming pools and terraces.
- Advanced gel technology helps improve coverage and workability.
- Can be used for tile-over-tile installations when correctly prepared.
- Perfect for residential, commercial and heavy-traffic areas.
Where It Works Best
Bathrooms & Wet Rooms
A strong choice for shower areas, bathrooms and wet rooms where moisture resistance and reliable adhesion are important.
Large Format Tiles
Ideal for porcelain and large-format floor tiles where full adhesive coverage and flexibility are required.
Underfloor Heating
Its flexible S1 classification makes it suitable for heated floors and modern tiling systems.
External Areas
Suitable for balconies, terraces and outdoor tiling when used with the correct preparation and installation method.
Technical Details
| Brand | Kerakoll |
|---|---|
| Product | H40 Advanced Grey |
| Product Type | Rapid-Setting Gel Tile Adhesive |
| Colour | Grey |
| Bag Size | 20kg |
| Classification | C2F TE S1 |
| Application | Walls & Floors |
| Use | Internal & External |
| Suitable Tile Types | Porcelain, Ceramic, Mosaic, Marble & Natural Stone |
| Coverage | Approx. 1.3kg/m² per mm thickness |
| Suitable Areas | Bathrooms, Kitchens, Wet Rooms, Swimming Pools, Balconies, Terraces & Commercial Floors |
Coverage Guide
Kerakoll H40 Advanced Grey has an approximate consumption of 1.3kg per m² for every 1mm of adhesive thickness. Actual coverage will depend on tile size, trowel depth, substrate condition and installation method.
- 3mm adhesive bed: approximately 5m² per 20kg bag.
- 5mm adhesive bed: approximately 3m² per 20kg bag.
- 8mm adhesive bed: approximately 1.9m² per 20kg bag.
Installation Advice
Before applying Kerakoll H40 Advanced Grey, ensure the surface is clean, dry, stable and free from dust, grease or loose material. For large-format tiles, external areas, heated floors and wet rooms, back-buttering is recommended to achieve full adhesive contact and reduce the risk of voids beneath the tile.
Always select the correct trowel size for the tile format and substrate. For best results, follow Kerakoll’s fixing guidance and ensure all substrates are correctly prepared before tiling.
FAQs
Is Kerakoll H40 Advanced Grey suitable for porcelain tiles?
Yes, it is suitable for porcelain tiles, including large-format porcelain tiles and modern low-porosity tile finishes.
Can it be used with underfloor heating?
Yes, its flexible S1 classification makes it suitable for use with underfloor heating systems when installed correctly.
Can H40 Advanced Grey be used outdoors?
Yes, it can be used externally on balconies, terraces and other outdoor tiled areas when the substrate is correctly prepared.
Is it suitable for natural stone?
Yes, it can be used with many natural stone materials, marble and engineered stone. Always check suitability for sensitive stone before installation.
How much area does one 20kg bag cover?
Coverage depends on adhesive bed thickness. As a guide, one 20kg bag covers approximately 5m² at 3mm thickness, 3m² at 5mm thickness, or 1.9m² at 8mm thickness.
Professional Rapid-Set Adhesive for Demanding Tile Installations
Kerakoll H40 Advanced Grey is a reliable choice for professional tilers looking for a rapid-setting, flexible and high-performance tile adhesive for porcelain, ceramic, natural stone and large-format tile projects.
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Shipping is based on your order weight and delivery location. Add items to your cart and enter your postcode to see the exact cost before checkout.
Some products supplied directly from our manufacturers (non-stocked brands) carry a separate delivery charge — this is shown clearly at checkout.
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Genesis (trims) — £19 + VAT · 1–3 days · cut-off 11:00 am
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30-day return window
Returns accepted within 30 days of delivery. You also have a statutory 14-day cancellation right from the date of receipt.
Items must be unused & in original packaging
Returned goods must be uninstalled, unaltered and in the same condition as received.
Installed or cut items cannot be returned
Once tiles or materials have been cut, altered or installed, no return or refund is possible under any circumstances.
How to start a return
Contact us first at info@tileexperience.co.uk or call 0208 689 4187. Send the item back with your name and order number. Return shipping is the customer's responsibility.
Refund to original payment method
Processed within 3–5 working days of us receiving and approving your return.
Original delivery charges are not refunded. If no refund after 15 business days, contact us.
Damaged or incorrect items
Report within 48 hours of receipt. Email info@tileexperience.co.uk with your order number and photos of the damage. Confirmed replacements are sent next working day at no charge.
Non-stocked brands — restocking fee may apply
Returns for Genesis, Marmox and Bihui carry up to a 20% restocking fee. Schluter trims: 35% standard return, 15% if returning with a replacement order.
Cancellations
Cancel before dispatch for a full refund including delivery. Cancel after dispatch by rejecting the delivery — refund for goods only, not the delivery charge.
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