Kerakoll H40 Advanced Gel Adhesive – For Tile & Stone – Pallet Deals & Bulk Buy – Rapid setting, multipurpose gel‑adhesive, structural, flexible, thixotropic & fluid

Kerakoll H40 Advanced Gel Adhesive – For Tile & Stone

Coverage:per mm thickness:

Grey (mixing ratio 23%) ≈ 1.3 kg/m²
White (mixing ratio 28.5%) ≈ 1.2 kg/m²

Areas of Use

Intended use: Substrates:

• existing tiles
• waterproofing products – heating systems
• cement-based screeds – concrete substrates
• plasterboard
• fibro-cement slabs
• gypsum and anhydrite
• asphalt screeds
• brick/blockwork
• lime and cement-based plasters/renders – thermal insulation panelling systems
• insulating panels
• impact noise insulation sheets – timber – metal – PVC

Materials:

• porcelain tiles
• laminated stoneware
• low thickness slabs
• ceramic tiles
• large size
• 300×150 cm slabs
• marble – natural stone
• recomposed materials
• glass mosaics
• glass tiles
• thermal and acoustic insulation – terracotta – klinker

Uses:

• adhesive and finishing
• floors and walls
• for internal and external use
• overlaying
• terraces and balconies
• facades
• swimming pools and fountains – saunas and spa
• domestic
• commercial
• industrial
• street furniture

Kerakoll H40 Advanced – Preparation For Use

Preparation of the substrate

Substrates must comply with BS 5385, parts 1-5, be level, cured, undamaged, compact, rigid, dry and free from any debonding agents. It is good practice to dampen highly absorbent concrete substrates or apply a coat of Kerakoll Primer A Eco. Anhydrite screeds must have a damp content of ≤ 0.5 % CM and be adequately sanded, cleaned using a suitable vacuum cleaner and primed.

Preparation of wood substrates

Make sure that the floor is able to bear the added weight of the tiles plus the static / dynamic service load indicated in the project. The wooden substrate must be rigid and stable and within normal levels of humidity; it may be necessary to strengthen the structure by inserting reinforcement noggings between the beams. Select appropriate plywood sheets of suitable thickness before laying the tiles (as indicated in BS5385-3). The plywood sheets must be screwed onto the beams with screws placed every 300 mm from the centre. The screws must be of a suitable length to ensure they fasten to the substrate, taking care not to damage anything under the floor. All sheet edges must be supported by beams or reinforcements. The surface of the sheet must be cleaned before laying to remove any dust and debris. If the surface of the sheet has been treated in advance with fireproofing or waterproofing materials, check that the sheet is certified by the manufacturer for laying of tiles. A test should also be carried out in advance to ensure that the treatment in question does not restrict the adhesion of the adhesive itself. If in doubt, please contact Kerakoll Global Service before laying.

Adhesive preparation

Mixing water (EN 12004-26)

Grey ≈ 20% – 23% by weight

White ≈ 28% – 30% by weight

Mixing water on-site

For low thickness laying and full wettability:

Grey ≈ 4.6 l / 1 bag

White ≈ 6 l / 1 bag

On walls, for high and low thickness laying: Grey ≈ 4 l/1 bag White ≈ 5.5 l / 1 bag The amount of water to be added, indicated on the packaging, is an approximate guide. It is possible to obtain mixtures with consistency of variable thixotropy according to the application to be made.

Kerakoll H40 Advanced – Instructions for use:

Application

To guarantee structural adhesion it is necessary to apply a layer of adhesive sufficient to cover the entire back of the coating material. Large, rectangular sizes with sides > 60 cm and low thickness sheets may require adhesive to be applied directly to the back of the material. Check samples to make sure the adhesive has been transferred to the back of the material.

Create elastic expansion joints:

– ≈ 10 m2 in external applications (approx. 3×3 m)

– ≈ 40 m² in internal applications (8×5 m) with underfloor heating

– ≈ 100 m² in internal applications (10×10 m) without underfloor heating

– every 8 metres in long, narrow applications. Respect all structural, fractionizing and perimeter joints present in the substrates.

Kerakoll H40 Advanced Special Notes

Metal (internal use only): Keragrip Eco

Asphalt/bitumen screed (internal use only):

Keragrip Eco Gypsum and anhydrite (internal use only):

Primer A Eco PVC (internal use only): Keragrip Eco

As treating special substrates is difficult to classify in a standard manner, it is always advisable to contact Kerakoll Global Service and/or request a site inspection by a GreenBuilding Consultant. In any case it is essential to carefully read the technical data sheet on how to use the indicated primers properly.

Materials and special substrates

Marble–natural stones and recomposed materials: marble and natural stone in general may have characteristics that vary even with reference to materials of the same chemical and physical nature. For this reason it is essential you consult Kerakoll Global Service to request specific indications or to carry out a test on a sample of the material.

In the absence of specific indications from the manufacturer, natural stone slabs with reinforcement layers, in the form of resin coating, polymer mesh, matting, etc. or treatments (for example damp courses, etc.) applied on the laying surface must be tested in advance to ensure they are compatible with the adhesive. Check for the presence of any really consistent traces of rock dust created during cutting, and remove them if found.

Waterproofing products: adherent and floating polymer sheets, liquid bitumen and tar-based sheets or membranes require application of a laying screed on top. On organic-based waterproofing products (such as RM according to EN 14891). Special applications Facades: the substrate should guarantee a cohesive tensile strength of ≥ 1.0 N/mm². The need to call for suitable mechanical safety anchoring must be evaluated by the designer for coverings with > 30 cm side. For coverings with > 60 cm, add to the mixing water a percentage of Top Latex Eco to assess the function of the thermo-dynamic strain provided by the structure. Always apply a layer of adhesive directly on the back of the material.

Special applications

Facades: the substrate should guarantee a cohesive tensile strength of ≥ 1.0 N/mm². The need to call for suitable mechanical safety anchoring must be evaluated by the designer for coverings with > 30 cm side.

For coverings with > 60 cm, add to the mixing water a percentage of Top Latex Eco to assess the function of the thermo-dynamic strain provided by the structure.

Always apply a layer of adhesive directly on the back of the material.

Kerakoll H40 Advanced Gel Adhesive technical data

Kerakoll H40 Advanced Gel Adhesive performance data