ASO-EZ4_205527_Englisch.pdf
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<h1>ASO-EZ4_205527_Englisch.pdf</h1> <p>Technical data sheet <br />ASO®-EZ4 <br />Binder for water-repellent, accelerated cement-based screeds</p> <p>Material number</p> <p>Package type</p> <p>Colour</p> <p>Units / pallet</p> <p>Pc/package</p> <p>205527001</p> <p>25 kg, bag</p> <p>Cement grey</p> <p>42</p> <p>1</p> <p>Areas of application <br />As binders for creating water-repellent cement-based screeds <br />As binders for creating accelerated screeds <br />For damp, wet areas, swimming pools and balconies, terraces <br />Heated and unheated design <br />for interior and exterior use</p> <p>Product features <br />Cementitious binder <br />Water-repellent <br />Quality up to CT-C50-F6-A9 in accordance with DIN EN 13813 <br />Rapid setting</p> <p>Advantages <br />Increased safety thanks to water-repellent properties <br />rapid construction progress <br />No efflorescence</p> <p>SCHOMBURG GmbH & Co. KG · Aquafinstr. 2–8 · D-32760 Detmold (Germany) · Tel. +49-5231-953-00 · Fax +49-5231- 953-333 · schomburg.com <br />1/5</p> <p>27/02/2026</p> <p>Technical data sheet <br />ASO®-EZ4 <br />Technical Data <br />Material properties <br />Base material <br />Consistency <br />Heating, screed after <br />Strengths</p> <p>Special cement, additives <br />Powdered <br />after 3 days <br />A strength greater than C35– F5 is achieved at a mix ratio of 1: <br />4 parts by weight, using aggregate after DIN 4226 and a <br />grading curve between A8 and B8 close to B8.</p> <p>Mixing <br />Mix ratio, component A <br />Mix ratio, aggregate <br />Mixing time <br />Water addition</p> <p>1 weight proportion <br />approx. 4 - 5 weight proportion <br />approx. 4 - 6 minutes <br />approx. 8.25 l - 10 l</p> <p>Application <br />Substrate temperature <br />Mixing method, machines, tools <br />Foot traffic after <br />Ready for covering with tiles <br />Pot life <br />Pot life (drainage mortar) <br />Application temperature <br />Hardening time / full resilience</p> <p>approx. 5 - 25 °C <br />Forced paddle mixer <br />approx. 6 hours <br />approx. 3 days <br />approx. 40 - 60 minutes <br />approx. 20 - 40 minutes <br />approx. 5 - 25 °C <br />approx. 7 days</p> <p>SCHOMBURG GmbH & Co. KG · Aquafinstr. 2–8 · D-32760 Detmold (Germany) · Tel. +49-5231-953-00 · Fax +49-5231- 953-333 · schomburg.com <br />2/5</p> <p>27/02/2026</p> <p>Technical data sheet <br />ASO®-EZ4 <br />Material rate <br />Material consumption rate according to the area of application</p> <p>Minimum nominal thickness in accordance with DIN 18560</p> <p>Processing equipment <br />Machine application <br />ASO®-EZ4 can be mechanically applied. For precise information, see the additional Technical Information No. 43.</p> <p>Suitable covering <br />Ceramic tiles and boards <br />Natural stone coverings <br />Artificial stone coverings</p> <p>Preparing the substrate <br />Measures for substrate preparation <br />The substrate must correspond to the load-bearing capacities in accordance with DIN EN1991-1-1.</p> <p>Application <br />Mixing recommendations for mixing and conveying machines <br />1. In conventional mixing and conveying machines with a 220 l mixing vessel, e.g. Estrich-Boy from Brinkmann, a total 200kg of aggregate is mixed <br />with 50 kg ASO®-EZ4. This equates to a mixing vessel level of approx. 80% - as recommended by the machine manufacturers in general. <br />2. Half-fill the mixing drum with aggregate with a grain size 0/8 (approx. 15 scoops of 7 kg each), add approx. 5—6 l water and 50 kg ASO®EZ4. Mix for approx. 2 minutes for a plastic consistency. <br />3. Add the remaining aggregate to the mixing drum and then the remaining water. <br />4. Depending on the aggregate moisture, a total of approx. 10-20 l water is required. The latter value relates to dry aggregate. In general, <br />aggregate with a grain of 0–8 has a moisture content of approx. 4%, therefore 8 l of water is already contained in 200 kg of aggregate but the <br />quantities do fluctuate. <br />5. It is imperative to comply with the total mixing time of 4 minutes, as all components are only decomposed after this time and the final consistency <br />is formed.</p> <p>SCHOMBURG GmbH & Co. KG · Aquafinstr. 2–8 · D-32760 Detmold (Germany) · Tel. +49-5231-953-00 · Fax +49-5231- 953-333 · schomburg.com <br />3/5</p> <p>27/02/2026</p> <p>Technical data sheet <br />ASO®-EZ4 <br />Application <br />1. Observe the water addition and avoid excess water! <br />2. Mixing, application, and processing must be completed in immediate sequence. <br />3. The dimensions of surfaces must be such that the application can be completed within this pot life. <br />4. Higher temperatures shorten the pot life. Lower temperatures increase the application and hardening times. <br />5. With bonded screeds, first brush ASOCRET-HS-FLEX into the prepared, e.g. abraded concrete substrate <br />6. Apply the screed to the wet slurry coat. The relevant guidelines for cement-based screeds after DIN18560 and DIN 18353 apply for <br />processing.</p> <p>Mixing recommendation for mortar <br />1. Mix ASO-EZ4 at a mix ratio: 1: 3 parts by volume (equates to approx. 1: 4.5 parts by weight) with aggregate (Ø 0–4 mm) in a suitable forced <br />paddle mixer. <br />2. The mixing time is at least 4 minutes! <br />3. Protect the fresh screed to prevent it drying out too rapidly (e.g. due to heat or draughts). <br />4. Tiles are ready for laying after 3 days if the following prerequisites are met: * Mix ratio of 1:4 parts by weight * Dry aggregate (DIN 4226; <br />grading curve A8 - B8 close to B8; constant grading) * Water addition of 17 litres on 50 kg ASO-EZ4 * Ambient and substrate temperature: <br />+23 °C * Rel. humidity of 50% * Layer thickness of 5 cm <br />5. A moisture measurement must be carried out using the CM method to check the moisture content. In the case of screeds that are required to <br />satisfy a certain screed quality in accordance with DINEN13813, a performance test is necessary. This must be performed before starting the <br />work.</p> <p>Cleaning tools <br />Clean tools thoroughly with water after use.</p> <p>Storage conditions <br />Storage <br />Store in a cool and dry place. Min. 12 months in the original canister. Promptly use opened container.</p> <p>SCHOMBURG GmbH & Co. KG · Aquafinstr. 2–8 · D-32760 Detmold (Germany) · Tel. +49-5231-953-00 · Fax +49-5231- 953-333 · schomburg.com <br />4/5</p> <p>27/02/2026</p> <p>Technical data sheet <br />ASO®-EZ4 <br />Notes <br />All values given in the TM apply at +23°C and 50% relative humidity. <br />Do not add any additives and substances! <br />Observe the technical data sheets of the products mentioned before starting work. <br />A moisture measurement must be carried out using the CM method to assess whether it is ready to receive. <br />Low temperatures, high humidity and heavy layer thicknesses delay hardening, drying and extend the time until ready to receive tiles. (Also <br />see the BEB data sheet “Building climate preconditions for drying screeds”). Tests showed that the crystalline binding of the water is slower at <br />low temperatures (+5 to +10°C), meaning that the screed was only ready to receive tiles after a longer period of time! <br />Water that is pressed out of the surface of the screed indicates excessive water or aggregate addition (more than 3.3: 1 volume – parts, <br />equates to approx. 5: 1 parts by weight), an incorrect grading curve or inadequate mixing. A consequence of this will be a crumbling <br />surface! <br />The quality of the aggregate used partly affects the properties of the screed produced. The aggregate must not contain any harmful and <br />staining components. Aggregate after DIN 4226 should be used with a constant grading curve between A and B (close to B) after DIN <br />1045. If aggregates with other grain distributions are used, a greater quantity of binder may be required. Aggregates with a grading curve <br />between B and C after DIN 1045 require a higher proportion of ASO®-EZ4. The grain size distributions that should be used with different <br />layer thicknesses are available in the “Layer thickness in accordance with grading curve” table. <br />If the surface of the screed cannot be closed sufficiently when rubbed, this indicates that the proportion of fines in the aggregate is too low. A <br />higher quantity of ASO®-SEB is required to replace the missing proportion of fines! <br />The installation location must be ventilated. However, draughts and direct solar radiation should be avoided during application and the <br />hardening process. The indoor temperature and floor temperature must be at least +5°C during application, and during the following week! <br />Air dehumidifiers may not be used during the first 3 days! <br />If the selected mixing time is too short or mixing is not sufficiently intense, this is not guaranteed to disperse all constituents sufficiently. The <br />screed will not be ready to receive tiles and boards quickly, and it will no longer exhibit a high strength! <br />Border, field, building separation and movement joints should be carried over to or installed at the designated location; suitable means (e.g. <br />edge strips) should be used to detach them! Crack control joints should be cut in up to a third of the introduced layer thickness! <br />Instead of ASOCRET-HS-FLEX, bonding slurry made of ASOPLAST-MZ at a ratio of 1: 1-2 can be diluted with water and screed mortar <br />made of 1 RT ASO®-EZ4 and 2 RT aggregate Ø 0–4 mm can be used! <br />We recommend the ASO®-EZ4-PLUS pre-blended dry mortar to lay tiles, boards and pool edging stones in a thick layer. <br />If more water is added than required to achieve the stiff or stiff plastic consistency, the excess water cannot be bound and must evaporate. <br />The screed will then be ready to receive tiles later! <br />ASO®-EZ4 already contains fibres. If additional fibres are added, this can cause the screed to be ready to receive tiles later! <br />For use in areas with inadequate aggregate quality or where storage of the mortar components is not possible or desirable, the ASO®-SEM <br />/ ASO®-EZ4-PLUS pre-blended dry mortars are available!</p> <p>Relevant regulations <br />Planning, inspection of substrates and building site circumstances, laying, grouting and subsequent <br />care of the work must be done in accordance with the relevant DIN standards and recognised rules of <br />technology (e.g. the ZDB Data sheets of the Zentralverband Deutsches Baugewerbe e.V.(German <br />construction Association) in the latest version. <br />Observe applicable safety data sheet!</p> <p>The rights of the buyer with regard to the quality of our materials are based on our terms and conditions of sale and delivery. Our technical advice team will be happy to advise you <br />in the case of requirements that exceed the scope of the application described here. In order to be binding, a legally binding written confirmation is required. The product description <br />does not release the user from a duty of care. Lay a test area in the event of uncertainty. This version becomes invalid in the event of a new version being issued.</p> <p>SCHOMBURG GmbH & Co. KG · Aquafinstr. 2–8 · D-32760 Detmold (Germany) · Tel. +49-5231-953-00 · Fax +49-5231- 953-333 · schomburg.com <br />5/5</p> <p>27/02/2026</p>
