AK7P Technical Data Sheet EN 3217.pdf
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<h1>AK7P Technical Data Sheet EN 3217.pdf</h1> <p>SCHOMBURG GmbH & Co. KG <br />Aquafinstrasse 2–8 <br />D-32760 Detmold (Germany) <br />phone + 49-5231- 953-00 <br />fax + 49-5231- 953-108 <br />email export@schomburg.de <br />www.schomburg.com</p> <p>Technical Data Sheet</p> <p>AK7P </p> <p>Art.-No. 2 01000</p> <p>04 <br />2 01000</p> <p>ry</p> <p>ve</p> <p>SCHOMBURG GmbH & Co. KG <br />Aquafinstrasse 2–8 <br />D-32760 Detmold</p> <p>io n</p> <p>Flexibilized tile adhesive</p> <p>l o w e m iss</p> <p>EN 12004 <br />AK7P</p> <p>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“.</p> <p>Cement-based adhesive for the <br />installation of tiles in interior and exterior areas <br />C2 <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>Class A1/A1fl <br />≥ 1 N/mm²</p> <p>≥ 1 N/mm² <br />≥ 1 N/mm² <br />≥ 1 N/mm²</p> <p>• very low emission <br />• for interior and exterior use <br />• easy to use <br />• especially good slip resistance <br />• tested to DIN EN 12004, C2 TE <br />Areas of application: <br />AK7P is used as a thin bed adhesive for the installation <br />of vitrified and earthenware tiles, ceramic tiles with lower <br />water absorption ≤ 0.5% (fully vitrified), clinker, mosaic <br />and natural stone materials which are not sensitive to <br />discolouration or translucent. AK7P is suitable for an <br />assured installation to all substrates in accordance with <br />DIN 18157, part 1 e.g. concrete, aerated concrete, <br />render, plaster, cement-based and calcium sulphate <br />based screeds / heated screeds, masonry work, <br />plasterboard etc. It is also suitable as an adhesive for <br />lightweight construction boards e.g. those made with <br />extruded polystyrene and for the installation of tiles onto <br />mineral-based and dispersion-based SCHOMBURG <br />bonded waterproof membranes in interior areas. <br />AK7P is suitable for use in interior rooms in accordance <br />with the French VOC by-law and the Belgian Royal <br />Decree C-2014/24239. Very low emissions in</p> <p>Technical Data: <br />Basis: <br />cement / sand <br />(polymer modified) <br />Colour: <br />cement grey <br />Filler composition: fine sand <br />Reaction to fire: <br />A1 / A1fl <br />Testing: <br />DIN EN 12004, MPA NRW, <br />Test certificate 220001533-02-01, <br />Reaction to fire in accordance with <br />EN 13501-1 <br />Bulk density: <br />1.35 kg/l <br />Application / <br />substrate temp: <br />+5° C to +25° C <br />Pot life *): <br />approx. 2 hrs <br />Open time *): <br />approx. 20-30 mins <br />Grout after *): <br />approx. 24 hrs <br />Foot traffic after *): approx. 24 hrs <br />Full service <br />conditions *): <br />after approx. 7 days <br />Consumption: <br />approx. 2.1 kg/m2 <br />with a 6 mm notched trowel <br />approx. 2.8 kg/m2 <br />with an 8 mm notched trowel <br />approx. 3.5 kg/m2 <br />with a 10 mm notched trowel <br />approx. 5.2 kg/m2 <br />with a 12 mm notched trowel <br />Cleaning: <br />immediately with water <br />Packaging: <br />25 kg plastic bag</p> <p>1/3</p> <p>32/17</p> <p>Storage:</p> <p>12 months when stored dry in the <br />original unopened packaging. Use <br />opened packaging promptly.</p> <p>* Values relate to +23° C and 50% relative humidity</p> <p>Substrate preparation: <br />The substrate must be dry, load-bearing, adequately flat, <br />free from penetrating cracks and free from separating <br />substances such as oil, paint, laitance and loose areas. <br />It must have a largely closed surface texture with a <br />surface condition and strength commensurate with its <br />type. When installing tiles, the substrate, its preparation <br />and tile installation to DIN 18157, part 1 is decisive. <br />Prime porous substrates with ASO-Unigrund. Calcium <br />sulphate screeds must be abraded, vacuumed and as <br />with all calcium sulphate based substrates, primed with <br />e.g. ASO-Unigrund/ASO-Unigrund-S (diluted 1 : 1 with <br />water). If large format tiles are to be laid on calcium <br />sulphate based screeds, we recommend priming with <br />ASODUR-V360W due to its greater barrier effect.Heated <br />screeds must be commissioned to recognised technical <br />regulations prior to the installation of floor finishes. The <br />readiness of the substrate to receive surface finishes is to <br />be determined by moisture measurements with a carbide <br />hygrometer (CM device). <br />The CM moisture content may not exceed: <br />• CT ≤ 2.0% for screeds on insulation or separating <br />layers, in interior areas <br />• CA without underfloor heating ≤ 0.5% <br />• CA with underfloor heating ≤ 0.3% <br />The CM measurement is to be carried out in accordance <br />with the FBH work instruction taken from the technical <br />information “coordination of cut-out points with heated <br />screeds”</p> <p>Product preparation: <br />Mix AK7P with clean water in a clean mixing bucket until <br />homogenous. <br />Mixing ratio: <br />7.0-8.25 litres water : 25.0 kg AK7P. <br />Allow to stand for 3 minutes, then stir once again. Only <br />prepare as much adhesive as can be used within the <br />pot life. Spread the mixed adhesive over the substrate <br />surface and comb through with a suitable notched trowel <br />dependent on the tile format and fix within the open time. <br />To install large format tiles or those subjected to greater <br />loads or temperature fluctuations, we recommend that <br />AK7P is modified with UNIFLEX-B. <br />The deformability and tensile adhesion strength in <br />accordance with DIN EN 12004 is considerably <br />increased. Dependent on the modification, deformability <br />class S2 is achieved, which is particularly recommended <br />for tiles larger than 60 × 60 cm. Shear stresses are <br />then compensated for to a larger degree, which under <br />unfavourable extraneous conditions can lead to debonding. To improve workability, UNIFLEX-B is mixed <br />with water and then homogenously mixed into AK7P. <br />Mixing ratio, highly deformable <br />(conforms with class C2 S2, deflection > 5 mm): <br />4.17 kg UNIFLEX-B : approx. 4.0 l water : 25 kg. <br />Advice: <br />• When installing tiles in heavy duty areas such as <br />exterior areas (balconies and terraces) use the <br />highly elastic bonded waterproof membrane system <br />AQUAFIN-TBS (AQUAFIN-RS300, AQUAFIN-2K/M <br />and UNIFIX-S3 or UNIFIX-2K). <br />• When installing natural or synthetic stone, heed the <br />specific properties of the product to be installed <br />(tendency to discolour, risk of curling etc.) and the <br />installation recommendations of the manufacturer.</p> <p>2/3</p> <p>32/17</p> <p>• To avoid curling effects resulting from water absorption, <br />we recommend the use of ASODUR-EK98 or <br />ASODUR Design with agglomerate / synthetic stone. <br />• Prime calcium sulphate based substrates with <br />ASO-Unigrund. To avoid the formation of ettringite <br />with calcium sulphate based substrates, UNIFIX-AEK <br />is suitable for laying tiles up to a residual moisture <br />content, measured with a carbide hygrometer, of 1.0% <br />when heated or 1.5% when unheated. <br />• Do not attempt to re-life adhesive which has already <br />started to stiffen, by adding fresh adhesive or more <br />water as there is a risk of inadequate strength <br />development. <br />• Direct contact between cement-based adhesives <br />and magnesite screeds leads to the destruction of <br />the magnestie screed through chemical reaction. <br />Moisture penetration from the rear must be excluded <br />using appropriate means. Mechanically abrade the <br />magnesite substrate and prime with the epoxy resin <br />ASODUR-V360W with max. 5% water addition as <br />necessary (approx. 250 g/m2). After waiting for <br />approx. 12 hours up to a max. of 24 hours at +20 °C, <br />apply a second coat of ASODUR-V360W (approx. <br />300-350 g/m2). Blind the second coat whilst still wet <br />with quartz sand of grain size 0.5-1.0 mm. After waiting <br />for a further 12-16 hours the installation works may <br />proceed. <br />• In continuously wet areas (swimming pools, containers <br />etc.), we recommend the use of system thin bed <br />adhesives UNIFIX-S3, UNIFIX-2K, UNIFIX-2K/6 using <br />the floating-buttering method onto the SCHOMBURG <br />waterproof material suitable for the particular <br />application. <br />• AK7P is a hydraulically curing adhesive and must be <br />protected against water and frost until fully cured, <br />which may take a few days in unfavourable weather <br />conditions. <br />• Protect areas where AK7P is not to be applied.</p> <p>• Observe the relevant current regulations. E.g. <br />DIN 18157, DIN 18352, DIN 18560 <br />DIN 18202, EN 13813, DIN 1055 <br />The BEB information sheets, distributed by the <br />Bundesverband Estrich und Belag e.V. <br />The technical information “coordination of cut out <br />points in heated floor constructions”. <br />The ZDB information sheets, distributed by the <br />professional association of the German tile industry: <br /> [*1] “Bonded waterproof membranes” <br /> [*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 observe a current valid EU Safety data sheet. <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 does not consider local building codes or legal requirements. It shall be used as general reference for the product, based on our current knowledge and experience. <br />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 technical department for further information.</p> <p>3/3</p> <p>WKD/CoS/TM</p> <p>32/17</p>
