AK7P Technical Data Sheet EN 2918.pdf
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<h1>AK7P Technical Data Sheet EN 2918.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>Flexibilized tile adhesive</p> <p>EN 12004 <br />AK7P <br />Cement-based adhesive for the <br />installation of tiles in interior and exterior areas</p> <p>ry</p> <p>ve</p> <p>CHOMBURG GmbH & Co. KG <br />Aquafinstrasse 2–8 <br />D-32760 Detmold <br />04 <br />2 01000</p> <p>io n</p> <p>and HQE. Highest quality level 4, row 8 in accordance <br />with the DGNB criterion “ENV 1.2 Local environmental <br />impact“.</p> <p>l o w e m iss</p> <p>Technical Data: <br />Basis: <br />cement / sand (polymer modified) <br />Colour: <br />cement grey <br />Filler composition: fine sand <br />Reaction to fire: 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: +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 />*) <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>A K 7P</p> <p>C2</p> <p>TE</p> <p>C2 <br />Reaction to fire: <br />Class A1/A1fl <br />Bond strength, as <br />tensile adhesion strength after dry storage: <br />≥ 1 N/mm² <br />Durability, as <br />tensile adhesion strength after water immersion: <br />≥ 1 N/mm² <br />tensile adhesion strength after warm storage: <br />≥ 1 N/mm² <br />Tensile adhesion strength after freeze/thaw cycles: <br />≥ 1 N/mm²</p> <p>EN</p> <p>12 0 0 4</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 <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</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>1/3</p> <p>29/18</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 layers, <br />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>surface and comb through with a suitable notched trowel <br />dependent on the tile format and fix within the open time. <br />For laying ceramic tiles (large formats) in highly thermally <br />exposed areas and in other highly stressed areas, the <br />use of a tile adhesive with higher deformability class S2 <br />– such as UNIFIX-S3 or UNIFIX-S3-fast, for example – <br />is recommended. <br />AK7P can be used to produce a highly deformable <br />adhesive mortar of class C2, deflection > 5 mm <br />(corresponds to S2) with the following mix ratio when <br />UNIFLEX-F is added: <br />25 kg AK7P: 5 kg UNIFLEX-F: approx 1.9 l water. <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, <br />AQUAFIN-2K/M-PLUS and UNIFIX-S3 or <br />UNIFIX-S3-fast). <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. <br />• 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.</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</p> <p>2/3</p> <p>29/18</p> <p>• 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 underwater areas (swimming pools, <br />containers, etc.), we recommend use of UNIFIX-S3 <br />using the Floating-Buttering method on SCHOMBURG <br />waterproofing materials suitable for the respective area <br />of 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. <br />• Observe the relevant current regulations. E.g. <br />DIN 18157, DIN 18352, DIN 18531,DIN 18534 <br />DIN 18560, 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”.</p> <p> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> </p> <p>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”</p> <p>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 <br />information. <br />3/3</p> <p>WKD/TET/TM</p> <p>29/18</p>
