LIGHTFLEX Technical Data Sheet EN 3417.pdf
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<h1>LIGHTFLEX Technical Data Sheet EN 3417.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>LIGHTFLEX </p> <p>Art.-No. 2 01005</p> <p>Extra-light flexible multi-functional tile adhesive</p> <p>TILE <br />SCHOMBURG GmbH & Co. KG <br />Aquafinstraße 2–8 <br />D-32760 Detmold <br />04 <br />2 01005</p> <p>C2 <br />Reaction to fire: <br />Bond strength, as <br />Tensile adhesion after dry ageing: </p> <p>ry</p> <p>ve</p> <p>Cement-based adhesive with increased performance for <br />the installation of tiles in interior and exterior areas</p> <p>io n</p> <p>EN 12004 <br />LIGHTFLEX</p> <p>l o w e m iss</p> <p>class A1/A1fl <br />≥ 1 N/mm²</p> <p>Durability, as <br />Tensile adhesion strength after water immersion: ≥ 1 N/mm² <br />Tensile adhesion strength after heat ageing: <br />≥ 1 N/mm² <br />Tensile adhesion strength after freeze/ <br />thaw cycles: <br />≥ 1 N/mm²</p> <p>• very high yield <br />• for large format tiles <br />• 4-in-1 technology <br />• reduced dust <br />• very low emissions <br />• for underfloor heating <br />• for interior and exterior use <br />• wall and floor <br />• normal hardening <br />• variable, use also as a flow-bed adhesive <br />• fulfils the required criteria for a “flexible adhesive” <br />• tested to DIN EN 12004, C2 TE S1 <br />Areas of application: <br />LIGHTFLEX is used as a thin bed adhesive and flowbed adhesive with a high yield for fixing vitrified and <br />earthenware tiles, ceramic tiles with low water absorption <br />≤ 0.5% (fully vitrified), clinker, mosaic and natural stone <br />that is neither translucent nor sensitive to discolouration. <br />Due to its deformability, LIGHTFLEX is suitable for the <br />installation of large format tiles. LIGHTFLEX is suitable <br />for secure fixing to all substrates in accordance with <br />DIN 18157, part 1, e.g. concrete, aerated concrete, <br />render, cement-based (CT) and calcium sulphate</p> <p>based (CA) screeds and heated screeds, brickwork, <br />plasterboard etc. as well as to existing well bonded <br />tiled finishes. Furthermore it is suitable as an adhesive <br />for lightweight construction boards e.g. composed of <br />extruded polystyrene (tilebacker boards) and for fixing <br />tiles to mineral-based or dispersion-based bonded <br />SCHOMBURG waterproof systems in e.g. wet duty <br />environments, communal showers, swimming pool <br />surrounds and swimming pools. Uneven wall or floor <br />substrates can be levelled out with LIGHTFLEX up to a <br />thickness of 15 mm before starting tiling. Due to the low <br />weight, transportation to the building site is considerably <br />easier. <br />LIGHTFLEX is suitable for use in interior rooms in <br />accordance with the AgBB evaluation scheme <br />(Committee for Health-related Evaluation of Building <br />Products), the French VOC by-law and the Belgian <br />Royal Decree C-2014/24239. Very low emissions in <br />accordance with GEV-EMICODE, which as a rule leads <br />to positive evaluations within the framework of building <br />certification systems according to DGNB, LEED, BREEAM <br />and HQE. Highest quality level 4, row 8 in accordance <br />with the DGNB criterion “ENV 1.2 Local environmental <br />impact“. <br />Technical Data: <br />Basis: lightweight fillers, cement, <br />additives (polymer modified) <br />Colour: <br />cement grey <br />Adhesive bed thickness: up to 15 mm <br />Application/ <br />substrate temperature: <br />+5°C to +25 °C <br />Pot life *): <br />approx. 2 hrs <br />Open time *): <br />approx. 30 mins <br />Grout after *): <br />approx. 24 hrs <br />Foot traffic after *): <br />approx. 24 hrs <br />Full service conditions *): after 7 days <br />Cleaning: clean with water immediately <br />after use <br />Reaction to fire: <br />A1/A1fl</p> <p>1/4</p> <p>34/17</p> <p>Testing: <br /> <br /> </p> <p> <br /> </p> <p>· DIN EN 12004, MPA-NRW <br />Test certificate 220003005-04 <br />·D <br /> IN EN 12002 <br />· Guidelines for flexible adhesives by <br />the German Construction Industry <br />and the Association of the German <br />Tile Industry <br />· Reaction to fire to EN 13501-1 <br />· Low emissions to the AgBB scheme, <br />French VOC by-law and EC1R Plus <br />to GEV EMICODE</p> <p>Consumption: <br /> <br />· approx. 1.3 kg/m2 with a 6 mm notched trowel <br /> <br />· approx. 1.8 kg/m2 with an 8 mm notched trowel <br /> <br />· approx. 2.2 kg/m2 with a 10 mm notched trowel <br /> <br />· approx. 1.9 kg/m2 with an 8 mm Flowline trowel <br /> <br />· approx. 2.7 kg/m2 with a 10 mm Flowline trowel <br /> <br />· approx. 3.2 kg/m2 with a 12/20 mm medium <br />bed trowel <br />Packaging: <br />15 kg plastic bag <br />Storage: Dry, 12 months in the original <br />unopened packaging. Use opened <br />packaging promptly. <br />*) These values relate to +23 °C and 50% relative humidity. <br />Substrate preparation: <br />The substrate must be dry, load bearing sufficiently <br />flat and free from penetrating cracks and separating <br />substances such as oil, paint, laitance and loose <br />components. The substrate surface must have a largely <br />closed texture and its condition must be appropriate for its <br />type. For tiling, the substrate, its preparation and product <br />application must conform to DIN 18157, part 1. <br />Prime absorbent substrates with ASO-Unigrund-GE <br />or ASO-Unigrund-K (diluted 1:3 with water). Calcium <br />sulphate screeds must be abraded, vacuumed and <br />thoroughly primed as with all substrates based on calcium <br />sulphate binders. If large format tiles are to be installed <br />and/or medium bed adhesives are used, then due</p> <p>to the formation of a greater barrier, we recommend <br />priming with ASODUR-V360W. Heated screeds must be <br />commissioned in accordance with technical regulations <br />before applying finishes. To determine whether <br />the substrate is ready for tiling carry out a moisture <br />measurement with a carbide hygrometer (CM device). <br />The CM moisture measurement may not exceed <br />• CT 2.0 CM% for screeds on insulation or separating <br />layers in interiors <br />• CA without underfloor heating 0.5 CM% <br />• CA with underfloor heating 0.3 CM% <br />The CM measurements are to be carried out in <br />accordance with current FBH-AD work instructions from <br />the technical information “coordination of cut out areas for <br />heated floor constructions”. <br />Product preparation: <br />Mix LIGHTFLEX with clean water in a clean mixing bucket <br />until homogenous. <br />Mixing ratio: <br /> <br />· as a thin-bed adhesive: <br />7.5 – 8.1 litres water: 15 kg LIGHTFLEX <br /> <br />· as a smoothing mortar: <br />7.4 – 7.9 litres water: 15 kg LIGHTFLEX <br /> <br />· as a flow-bed adhesive: <br />10.2 – 10.8 litres water: 15 kg LIGHTFLEX <br />Allow to stand for 4 minutes, then mix thoroughly through <br />once again. When using as a flow-bed adhesive <br />firstly mix LIGHTFLEX with approx. 8 litres of water and <br />subsequently mix in the remaining water until a pourable <br />consistency is achieved. Do not mix more material <br />than can be used within the pot life. Spread the mixed <br />adhesive over the substrate and dependent on the tile <br />format comb through with the appropriate notched <br />trowel. Fix the finishing material within the adhesive open <br />time. When installing large format tiles larger than 60 x <br />60 cm, we recommend that LIGHTFLEX is modified with <br />UNIFLEX-B. Modification with the UNIFLEX-B elastifier <br />improves the deformability and tensile adhesion of <br />LIGHTFLEX. Dependent on the level of modification, S2</p> <p>2/4</p> <p>34/17</p> <p>deformation class can be achieved which is particularly <br />recommended for tiles larger than 60 x 60 cm. This <br />considerably compensates for shear stresses, which can <br />lead to delamination in unfavourable exterior conditions. <br />UNIFLEX-B is mixed with water for improved application <br />and then mixed with LIGHTFLEX until homogenous. <br />Mixing ratio, highly deformable <br />(relates to class C2 S2, deformation > 5 mm): <br />4.17 kg UNIFLEX-B : approx. 4.0 l water : 15 kg LIGHTFLEX. <br />Important advice: <br />• For fixing tiles in heavy duty areas in exterior locations <br />(balconies and terraces) install the highly elastic <br />bonded waterproofing system AQUAFIN-2K/M <br />and UNIFIX-2K. <br />• Levelling layers produced with LIGHTFLEX can be <br />tiled over after approx. 8 – 24 hours dependent on <br />thickness applied *): <br />• Where LIGHTFLEX is used as a flow-bed adhesive, tiles <br />are generally ready for foot traffic and grouting after <br />48 hours. <br />• When fixing natural and synthetic stone refer <br />to the specific product properties (tendency to <br />discolour, risk of curling etc.) and the manufacturer’s <br />recommendations. In cases of doubt carry out a trial <br />area. <br />• To avoid curling effects through water absorption, <br />we recommend the use of ASODUR-EK98 or <br />ASODUR-Design with agglomerate/synthetic stone. <br />• When installing large format tiles larger than 50 x 50 <br />cm, in order to improve the adhesion, a scratch coat <br />should be applied to the rear of the tile or they should <br />be fixed in the buttering-floating method. <br />• To avoid the formation of ettringite with calcium <br />sulphate based substrates UNIFIX-AEK is suitable <br />for fixing tiles on to these substrates up to a residual <br />moisture content of 1.0% when heated and 1.5% when <br />unheated, measure with a carbide hygrometer.</p> <p>• Adhesive that has already started to set should not be <br />re-lifed by adding more water or fresh adhesive. There <br />is a risk of inadequate strength development. <br />• In continuously wet areas (swimming pools, containers <br />etc) we recommend the use of the system based thinbed adhesive UNIFIX-2K/6 onto the SCHOMBURG <br />waterproof membrane suitable for the particular <br />application. <br />• Direct contact between cement-based tile mortars and <br />magnesium-based screeds leads to the destruction of <br />the magnesite screed through a chemical reaction. <br />Negative moisture penetration from the rear must <br />be prevented through appropriate measures. <br />Mechanically abrade the magnesite substrate and <br />prime with the epoxy resin ASODUR-V360W (approx. <br />250 g/m²) with a maximum of 5% water as necessary. <br />After waiting between 12-24 hours at +20° C, then <br />apply a second coat of ASODUR-V360W (approx. <br />300-350 g/m²). Broadcast the wet second coat with <br />0.5-1.0 mm quartz sand to excess. After waiting for a <br />further 12-16 hours continue with the tile installation. <br />• LIGHTFLEX is a hydraulically setting adhesive and <br />should be protected from the influences of water and <br />frost until fully cured, which may take a few days under <br />unfavourable weather conditions. <br />• Protect areas not to be treated from the effects of <br />LIGHTFLEX. <br />• The relevant current regulations are to be observed. <br />E.g. <br />DIN 18157 <br />DIN 18352 <br />DIN 18560 <br />DIN 18202 <br />EN 13813 <br />DIN 1055 <br />The BEB data sheets distributed by the National <br />Association for screeds and finishes. The technical <br />information ““coordination of cut out areas with heated <br />floor construction”. <br />The ZDB data sheets distributed by the Technical <br />Association of the German Tile Industry: <br /> [*1] “Bonded waterproof membranes”</p> <p>3/4</p> <p>34/17</p> <p> [*2] “Finishes on calcium sulphate screeds” <br /> [*3] “Movement joints in wall and floor tile finishes” <br /> [*5] “Ceramic tiles, natural stone and cementbound composite slabs on cement-based floor <br />constructions with insulation” <br /> [*6] “Ceramic tiles, natural stone and cement-bound <br />composite slabs on heated cement-based floor <br />constructions” <br /> [*7] “Finishes in exterior areas” <br /> [*8] “Finishes on poured asphalt” <br /> [*9] “Tolerances in level” <br /> [*10] “Tolerances” <br /> [*11] “Cleaning, protecting, maintenance” <br /> [*12] “Swimming pool construction” <br />Please use a current valid EU Safety data sheet. <br />Low chromate. <br />GISCODE: ZP1</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 is a translation from the German language version and does not consider local building codes or legal requirements. It shall be used as general reference for the <br />product. Legally binding is only the German technical data sheet or the latest Data sheet from one of our foreign subsidiaries inside their sales territory.</p> <p>4/4</p> <p>WKD/CoS/TM 34/17</p>
