UNIFIX-S3 TM GB_4915.pdf
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<h1>UNIFIX-S3 TM GB_4915.pdf</h1> <p>SCHOMBURG GmbH & Co. KG <br />Aquafinstrasse 2–8 <br />D-32760 Detmold (Germany) <br />phone + 49-5231- 953-00 <br />fax <br />+ 49-5231- 953-108 <br />email export@schomburg.de <br />www.schomburg.com</p> <p>Technical Data Sheet</p> <p>UNIFIX®-S3</p> <p>Art.-No. 2 04276</p> <p>Highly flexible thin bed adhesive</p> <p>SCHOMBURG GmbH & Co. KG <br />Aquafinstraße 2–8 <br />D-32760 Detmold <br />07 <br />2 04276 <br />EN 12004 <br />UNIFIX-S3 <br />Cement-based adhesive for the <br />installation of tiles in interior and exterior areas</p> <p> Class E</p> <p>ry</p> <p>ve</p> <p>≥ 0.5 N/mm²</p> <p>io n</p> <p>C1 <br />Reaction to fire: <br />Bond strength, as <br />tensile adhesion strength after <br />dry storage: <br />Durability, as <br />tensile adhesion strength after <br />water immersion: <br />tensile adhesion strength after <br />warm storage: <br />Tensile adhesion strength after <br />freeze/thaw cycles: </p> <p>l o w e m iss</p> <p>≥ 0.5 N/mm² <br />≥ 0.5 N/mm² <br />≥ 0.5 N/mm²</p> <p>Properties: <br />• Highly flexible <br />• For interior and exterior use <br />• For critical substrates and heavy duty use <br />• Conforms to DIN EN 12004, C1 TE S2 <br />• Also for use on ‘green’ substrates <br />• Vapour permeable <br />• Water impermeable <br />• Water and frost resistant <br />• Deformable to DIN EN 12002 ≥ 30 mm <br />Areas of application: <br />UNIFIX-S3 is used as a thin bed adhesive especially <br />for the installation of vitrified tiles with lower water <br />absorption ≤ 0.5% (fully vitrified), vitrified tiles, clinker <br />and mosaic onto ‘green’ cement-based substrates. The <br />high deformability of UNIFIX-S3 can largely compensate <br />for the damaging shear stresses in the tiled finish and <br />is therefore also especially suitable for the installation <br />of large format tiles. UNIFIX-S3 is used primarily in <br />floor areas. UNIFIX-S3 is especially suitable for use <br />on balconies and terraces, in swimming pools and <br />containers, on heated constructions, on ‘green’ heavier <br />duty cement-based substrates and for the installation of <br />tiles with lower water absorption. <br />Due to its high elasticity high stresses are also <br />reliably accommodated with UNIFIX-S3 (deflection in</p> <p>accordance with DIN EN 12002 > 30 mm without <br />breakage of the test piece), such as those that arise <br />e.g. between substrate and tiled finish in exterior areas <br />or when installing on ‘green’, trafficked cement-based <br />screeds (approx. 3 days after laying) and heated <br />screeds. <br />The vapour permeability of UNIFIX-S3 guarantees that <br />cement-based substrates, which are still damp, will <br />dry out even when installing tiles early. The mandatory <br />commissioning of heated screeds before the installation <br />of ceramic materials can be omitted. <br />When installing natural stone materials make allowances <br />for the specific product properties of the natural stone, <br />sensitivity to discolouration and curling. Dependent on <br />the natural stone and where it is to be installed, we <br />recommend the CRISTALLIT series or UNIFIX-S3-Fast as <br />the bedding mortar on balconies and terraces. <br />UNIFIX-S3 is a system component of the bonded tiled <br />waterproof system AQUAFIN-2K/M + UNIFIX-S3. <br />UNIFIX-S3 is suitable for use on mineral-based and <br />dispersion-based SCHOMBURG bonded waterproof <br />systems. <br />Technical Data: <br />Powder component <br />Liquid component <br />Basis: <br />aggregate, cement, liquid polymer <br /> <br />additives <br />Colour: grey <br />white <br />Mixing ratio: 3 parts by weight 1 part by weight <br />Packaging: 15 kg bag <br />5 kg bucket <br />Storage: <br />dry, 12 months <br />frost free, 12 months <br /> <br />in the original unopened container <br /> <br />UNIFIX-S3 (combined product) <br />Mixing ratio: 15 kg powder component : 5 kg liquid <br /> <br />component : up to 1.6 litres water <br />Application/ <br />substrate <br />temperature: + 5 °C to + 25 °C <br />Pot life *): <br />approx. 2 hours <br />Open time *): approx. 30 minutes <br />Grout after *): 2 days at the earliest dependent on the <br /> <br />porosity of the substrate</p> <p>1/4</p> <p>49/15</p> <p>Foot traffic <br />after *): <br /> <br />Fully <br />serviceable <br />after *): <br /> <br />Cleaning: <br />Deformation: <br /> <br />Testing: <br /> <br />Consumption: <br /> <br /> <br /> <br /> <br /> </p> <p>2 days at the earliest dependent on <br />the porosity of the substrate <br />14 days at the earliest dependent on <br />the porosity of the substrate <br />with water immediately after use <br />30.9 mm to DIN 12002 – without <br />breakage of the test piece <br />DIN EN 12004 <br />DIN EN 12002 <br /> approx. 2.80 kg/m2 with a 6 mm <br />notched trowel <br />approx. 3.70 kg/m2 with an 8 mm <br />notched trowel <br />approx. 4.70 kg/m2 with a 10 mm <br />notched trowel</p> <p>*) These values relate to +20° C and 65% relative humidity, higher <br />temperatures shorten and lower temperatures lengthen these given <br />times.</p> <p>Substrate preparation: <br />The substrate must be dry, load bearing, adequately <br />flat, free from penetrating cracks and free from <br />separating substances such as e.g. oil, paint, laitance <br />layers and loose constituents. It must possess a largely <br />closed surface with a surface condition and strength in <br />accordance with its type. DIN 18157, part 1 and the <br />divergent application specifications of UNIFIX-S3 prevail <br />when installing tiles regarding the substrate, substrate <br />preparation and product application. Prime porous <br />substrates with ASO-Unigrund. Calcium sulphate screeds <br />must be mechanically abraded, vacuumed and as <br />with all substrates based on calcium sulphate binders, <br />primed with ASO-Unigrund-K diluted 1:3 with water. <br />Heated screeds must be commissioned in accordance <br />with recognised technical regulations before installing <br />floor finishes. To determine a substrate’s readiness to <br />receive finishes carry out a moisture test with a carbide <br />hygrometer (CM device). The CM moisture readings <br />may not exceed:</p> <p>• CA without underfloor heating ≤ 0.5% <br />• CA with underfloor heating ≤ 0.3% <br />Tiles can be installed with UNIFIX-S3 on cement-based <br />screeds as soon as they will take foot traffic, concrete <br />substrates after 28 days, independent of the moisture <br />content. <br />The CM readings are to be carried out in accordance <br />with current FBH-AD work instructions taken from the <br />technical information for the “coordination of cut out <br />points in heated floor constructions”. <br />Unevenness in the substrate that is ready to receive tiles <br />can be levelled out beforehand with SOLOPLAN-30. <br />Product preparation: <br />UNIFIX-S3 is a combination product and is supplied <br />at a predetermined mix ratio. Firstly add the liquid <br />component B to a clean mixing bucket. Then add the <br />powder component whilst stirring and continue to mix <br />until a homogenous consistency is achieved. For ease <br />of application up to a maximum of 8% (approx. 1.6 <br />litres) of water can be subsequently added. After a short <br />standing time, stir the thin bed adhesive once again. Do <br />not mix more UNIFIX-S3 than can be used within the pot <br />life of approx. 2 hours. <br />Mixing ratio: <br />15 kg UNIFIX-S3 : 5 kg UNIFLEX-B : dependent on <br />desired consistency up to 1.6 litres water <br />Trowel UNIFIX-S3 onto the surface of the substrate and <br />comb through with a notched trowel suitable for the tile <br />size/material. Install tiles within the open time (finger <br />test). In exterior areas and continuously wet areas ensure <br />that as far as possible a void free bedding of the tiles <br />is achieved. Special trowels (e.g. HFV notch, Flowline) <br />have proved successful for this purpose. <br />A waterproofing function is achieved when UNIFIX-S3 <br />is trowelled out at a uniform 2 mm thickness. Apply <br />ASO-Joint-Tape-2000/preformed pieces at wall/ <br />floor junctions or over movement joints, free from voids <br />or folds, with UNIFIX-S3. Joints are to be carried out <br />by overlapping a minimum 5 to 10 cm. Once the</p> <p>2/4</p> <p>49/15</p> <p>membrane has hardened then the tiles can be installed <br />using the previously mentioned application technique. <br />Advice: <br />• T he relevant regulations (DIN, ZDB data sheets) still <br />insist on keeping to a 28 day waiting time for <br />cement-based substrates to receive finishes. <br />Longstanding experience with the elastic thin bed <br />adhesive UNIFIX-S3 has shown that it is possible to <br />safely achieve a damage free installation even on <br />‘green’ substrates. We agree to recommend this <br />special construction method by contract. <br />•W <br /> hen combining ‘green’ substrates and the <br />installation of large format tiles, the tile size is to <br />be restricted to a maximum of 50 cm x 50 cm. <br />A minimum joint width of 3 mm is to be planned. <br />When installing tiles greater than 50 cm x 50 cm the <br />moisture content of the screed is to be additionally <br />tested with a carbide hygrometer. Keep to a moisture <br />content of ≤ 2 CM% for unbonded or floating cementbased screeds. <br />• It is a prerequisite that the following criteria are <br />followed: <br />The positioning of movement joints must conform to <br />relevant regulations. Use a minimum trowel notch of <br />8 mm in order to be able to absorb minimal <br />deformation within the substrate. Undertake the <br />commissioning (heating up) of screeds from the 21st <br />day after installation in conformance with relevant <br />regulations (ZDB data sheet). The tile installation <br />begins as early as possible depending on the ability <br />to traffic the screed; as a rule after a minimum of 3 to <br />8 days. The screed must have achieved at least 70% <br />of its final strength (normally after 7 days). Carry out <br />grouting with hydraulically setting grouts e.g. <br />ASO-Flexfuge or HF05-Brillantfuge. <br />•W <br /> hen working on ‘green’ cement-based substrates <br />(screeds, heated screeds) be aware of the diminished <br />trafficking capacity of the screed construction. Do <br />not store heavy tools, flooring materials etc. on the <br />screed, especially at fragile locations – implement <br />load spreading measures. <br />•W <br /> hen installing natural and synthetic stone the <br />specific properties of these products (tendency to</p> <p>• <br />• <br />•</p> <p>• <br />• <br />• <br />•</p> <p>• <br />•</p> <p>3/4</p> <p>discolour, risk of curling etc.) and the installation <br />recommendations of the manufacturer are to be <br />observed. In cases of doubt carry out a fixing trial. <br />To avoid curling effects due to water absorption <br />we recommend the use of ASODUR-EK98 with <br />agglomerate/synthetic stone. <br />Direct sunlight and draughts can lead to the early <br />formation of a skin or to a shortened open time. <br />UNIFIX-S3 is a hydraulically setting adhesive with a <br />dispersion component that until fully hardened is to be <br />protected from water and frost penetration, which can <br />take a few days under inclement weather influences/ <br />climatic conditions. <br />The filling of pools, containers etc. may only be <br />implemented after a minimum of 28 days. <br />Areas not being treated are to be protected from the <br />effects of UNIFIX-S3. <br />Avoid contact with the eyes and skin. <br />Prime calcium sulphate based substrates with <br />ASO-Unigrund-GE or ASO-Unigrund-K (mix ratio <br />1:3 with water). To avoid the formation of ettringite <br />with calcium sulphate based substrates UNIFIX-AEK <br />is suited for the installation on these substrates up to <br />residual moisture values of 1.0% with heated and <br />1.5% with unheated constructions, measured with a <br />carbide hygrometer. <br />Do not re-life adhesive that has already started to <br />stiffen by adding more water or fresh adhesive as <br />there is a risk of inadequate strength development. <br />The direct contact between cement-based adhesives <br />and magnesium screeds leads to the destruction of the <br />magnesium screed via a chemical reaction. Moisture <br />pressure from the rear of the substrate must be <br />eliminated with appropriate measures. Mechanically <br />abrade the magnesium substrate and prime with the <br />epoxy resin ASODUR-V360W with the addition of <br />max. 5% water as necessary (approx. 250 g/m2). <br />Wait for approx. 12-24 hours at +20° C then apply <br />a second coat of ASODUR-V360W (approx. 300350 g/m2). Broadcast quartz sand of particle size <br />0.5-1.0 mm to excess into the wet second coat. After <br />waiting for a further 12-16 hours, installation may be <br />commenced.</p> <p>49/15</p> <p>• In continuously wet areas (swimming pools, containers <br />etc.) ensure that, as far as possible, the tiles are <br />bedded free from voids. For this purpose special <br />trowels (e.g. HFV notch, Flowline) have proved <br />successful. The spreading of adhesive on the rear <br />of tiles can be omitted with suitable installation <br />techniques, in so far as the Floating-Buttering method <br />has not been explicitly specified from a planning <br />aspect. It is recommended to continually monitor the <br />results of workmanship. <br />Please observe a valid EU Health & Safety Data Sheet. <br />GISCODE: ZP1 <br />GISCODE: D1</p> <p>(component A) <br />(component B)</p> <p>Information about the emission level of volatile compounds in indoor <br />air, which pose a health risk by inhalation, on a scale from class A+ <br />(very low emissions) to C (high emissions).</p> <p>This technical data sheet does not consider local building codes or legal requirements. It shall be used as general reference for the product, based on our current knowledge <br />and experience. Legally binding is only the latest Data Sheet from one of our foreign subsidaries inside their sales territory. In any case of uncertainty please consult our <br />technical department for further information. <br />4/4</p> <p>WKD/CoS/JD</p> <p>49/15</p>
