Kerakoll H40 Gel Adhesive extended informationCoverage per mm thickness:Grey (mixing ratio 26%) ≈ 1.3 kg/m2White (mixing ratio 30%) ≈ 1.2 kg/m2Kerakoll H40 Gel Adhesive Areas of applicationIntended use: Substrates:existing tileswaterproofing productsheating systemscement-based screedsasphalt screedsconcrete substratesplasterboardfibro-cement slabsgypsum and anhydritebrick/blockworklime and cement-based plasters/rendersthermal insulation panelling systemsinsulating panelsimpact noise insulation sheetstimber – metal – PVCMaterials:porcelain tileslaminated stonewarelow thickness slabsceramic tileslarge size300×150 cm slabsmarblenatural stonerecomposed materialsglass mosaicsglass tilesthermal and acoustic insulationterracotta – klinkerUses:adhesive and finishingfloors and wallsfor internal and external useoverlayingterraces and balconiesfacadesswimming pools and fountainssaunas and spadomesticcommercialindustrialstreet furnitureKerakoll H40 Gel Adhesive – Instructions for usePreparation 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-%.PreparationMixing water (EN 12004-26):Grey ≈ 23% – 29% by weightWhite ≈ 26% – 33% by weightMixing water on-site For low thickness laying and full wettability:Grey ≈ 5.7 l/1 bagWhite ≈ 6.6 l / 1 bagon walls, for high and low thickness laying:Grey ≈ 4.5 l/1 bagWhite ≈ 5.1 l / 1 bagThe 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.ApplicationTo 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 NotesPre-treatment of special substrates Timber (internal use only): Keragrip EcoMetal (internal use only): Keragrip EcoAsphalt/bitumen screed (internal use only): Keragrip EcoGypsum and anhydrite (internal use only): Primer A EcoPVC (internal use only): Keragrip EcoAs 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 substratesMarble–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 applicationsFacades: 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 dataShelf life≈ 12 months from production in the original sealed packaging, protect from humidityPack20 kgAdhesive thicknessfrom 2 to 15 mmTemperature of the air, substrates and materialsfrom 5 °C to 35 °CPot life at 23 °C- grey≈ 4 hrs- white≈ 4 hrsOpen time at 23 °C (BIII tile):- grey≥ 60 min.- white≥ 60 min.Foot traffic/grouting of joints at 23 °C (BIa tile):- grey≈ 16 hrs- white≈ 16 hrsFoot traffic/grouting of joints at 5 °C(BIa tile):- grey≈ 42 hrs- white≈ 24 hrsGrouting in walls at 23 °C (BIa tile)- grey≈ 12 hrs- white≈ 12 hrsReady for use at 23 °C / 5 °C (BIa tile)- light foot traffic≈ 1/2 days- heavy traffic≈ 3/5 days- swimming pools ( 23 °C)≈ 14 daysCoverage per mm thickness:- grey (mixing ratio 26%)≈ 1.3 kg/m2- white (mixing ratio 30%)≈ 1.2 kg/m2Kerakoll H40 Gel Adhesive performanceShear adhesion (porcelain tiles / porcelain tiles) after 28 days≥ 2,5 N/mm2ANSI A-118.4Tensile adhesion (concrete/porcelain tiles) after 28 days≥ 2,5 N/mm2EN 12004-2Durability test:- adhesion after heat ageing≥ 1 N/mm2EN 12004-2- adhesion after water immersion≥ 1 N/mm2EN 12004-2- adhesion after freeze-thaw cycles≥ 1 N/mm2EN 12004-2- adhesion after straining cycles≥ 1 N/mm2SAS TechnologyVertical slip≤ 0,5 mmEN 12004-2Transversal deformation≥ 2,5 mmEN 12004-2Working temperaturefrom -40 °C to 90 °C Category: Tile Adhesives - Pallet Deals
