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 <br />+ 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 <br />Cement-based adhesive for the <br />installation of tiles in interior and exterior areas</p> <p>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 <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>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</p> <p>Technical Data: <br />Basis: <br />cement / sand <br /> <br />(polymer modified) <br />Colour: <br />cement grey <br />Filler composition: <br />fine sand <br />Reaction to fire: <br />A1 / A1fl <br />Testing: DIN EN 12004, <br />MPA NRW, Test certificate <br />220001533-02-01, Reaction <br />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 *): <br />approx. 24 hrs <br />Full service conditions *): after approx. 7 days <br />Consumption: approx. 2.1 kg/m2 with <br />a 6 mm notched trowel <br />approx. 2.8 kg/m2 with <br />an 8 mm notched trowel <br />approx. 3.5 kg/m2 with <br />a 10 mm notched trowel <br />approx. 5.2 kg/m2 with <br />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: 12 months when stored dry <br />in the original unopened <br />packaging. Use opened <br />packaging promptly. <br />* 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. The deformability and <br />tensile adhesion strength in accordance with DIN EN <br />12004 is considerably increased. Dependent on the <br />modification, deformability class S2 is achieved, which is <br />particularly recommended for tiles larger than 60 × 60 <br />cm. Shear stresses are then compensated for to a larger <br />degree, which under unfavourable extraneous conditions <br />can lead to de-bonding. To improve workability, <br />UNIFLEX-B is mixed with water and then homogenously <br />mixed into AK7P. Mixing ratio, highly deformable <br />(conforms with class C2 S2, deflection > 5 mm): 4.17 kg <br />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 <br />absorption, we recommend the use of ASODUR-EK98 <br />or ASODUR-Design with agglomerate / synthetic <br />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 <br />1.0% 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). <br />After waiting for approx. 12 hours up to a max. of <br />24 hours at +20° C, apply a second coat of <br />ASODUR-V360W (approx. 300-350 g/m2). <br />Blind the second coat whilst still wet with quartz sand <br />of grain size 0.5-1.0 mm. After waiting for a further <br />12-16 hours the installation works may 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 cement-bound <br />composite slabs on cement-based floor constructions <br />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 <br />information. <br />3/3</p> <p>WKD/CoS/TM</p> <p>32/17</p>
