Kerakoll H40 Gel Adhesive – Standard Setting – Pallet Deals & Bulk Buy – For Tile & Stone

Kerakoll H40 Gel Adhesive extended information

Coverage per mm thickness:

Grey (mixing ratio 26%) ≈ 1.3 kg/m²

White (mixing ratio 30%) ≈ 1.2 kg/m²

Kerakoll H40 Gel Adhesive Areas of application

Intended use: Substrates:

• existing tiles
• waterproofing products
• heating systems
• cement-based screeds
• asphalt screeds
• concrete substrates
• plasterboard
• fibro-cement slabs
• gypsum and anhydrite
• 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 Gel Adhesive – Instructions 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 substrates must have a residual humidity ≤ 0,5 CM-%. Cement-based screeds must have a residual humidity ≤ 2 CM-%. Anchored substrates must comply with BS 8204 and anhydrite with underfloor heating must have a residual humidity ≤ 0,3 CM-%.

Preparation

Mixing water (EN 12004-26):

Grey ≈ 23% – 29% by weight

White ≈ 26% – 33% by weight

Mixing water on-site For low thickness laying and full wettability:

Grey ≈ 5.7 l/1 bag

White ≈ 6.6 l / 1 bag

on walls, for high and low thickness laying:

Grey ≈ 4.5 l/1 bag

White ≈ 5.1 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.

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.

Special Notes

Pre-treatment of special substrates

• Timber (internal use only): Keragrip Eco
• 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: materials that are known to be subject to deformation or staining due to water absorption require a quick-setting or reactive adhesive.

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.

Kerakoll H40 Gel Adhesive technical data

Kerakoll H40 Gel Adhesive performance