Technical data sheet AQUAFIN®-1K Mineral waterproofing slurry
Material number
Contents
Unit of quantity
Packaging
Colour
204248003
25
KG
Bag
Grey
204248004
5
204248003SXP
Fields of application / waterproofing For presealing building components in direct ground contact for water impact classes W1.1-E, W1.2-E and W4-E As retroactive building waterproofing in accordance with WTA datasheet 4-6 for waterproofing containers and basins (W1-B, W2-B in accordance with DIN18535) for the repair of sulphate-damaged substrates for process and waste water tanks for interior and exterior use For walls and floors
Product features Rigid mineral-based waterproofing slurry Resistant to concrete-damaging water (XA2), in accordance with DIN 4030
SCHOMBURG GmbH & Co. KG · Aquafinstr. 2–8 · D-32760 Detmold (Germany) · Tel. +49-5231-953-00 · Fax +49-5231- 953-333 · schomburg.com 1/5
04/06/2025
Technical data sheet AQUAFIN®-1K Advantages Highly sulphate-resistant Resistant to frost and ageing Can be applied by brush, spatula and spray watertight easy and economical application Adheres to matt damp substrates without primers Vapour permeable
Technical Data Material properties Product components Base material Consistency Density, ready to use product (ISO 1183-1) Watertightness (PG MDS/FPD) Watertightness against negative pressing water (WTA-datasheet 4-6) Tensile adhesion strength DIN EN 1542 Crack classes DIN 18535 Classification of the reaction to fire in accordance with DIN EN 13501-1
1 component system Pre-blended dry mortar Paste, non slump approx. 1.85 kg/dm³ to 1 bar to 0,75 bar ≥ 0.5 N/mm² R0-B E
Mixing Mixing time Water addition Water addition (percentage)
approx. 3 minutes Approx. 6.7 l per 25 kg approx. 26 - 27 %
Application Substrate/application temperature Pot life Method of application, max. layer thickness per application step Consumption Consumption (surface levelling) per mm layer thickness Second application step after waiting time Foot traffic after Withstands pressurised water after
approx. 5 - 30 °C approx. 60 minutes up to 1 mm approx. 3.50 - 5.30 kg/m² approx. 1.75 kg/m² approx. 4 - 6 hours approx. 24 hours ≥ 7 days
Processing equipment Aids/tools Stirrer (approx. 500-700 rpm) Suitable mixing paddle Trowel Serrated or layer-thickness trowel Flat trowel Brush Spray equipment
Manual processing Can be trowelled off Can be painted on with paint rollers Applicable with a brush
Machine application AQUAFIN®-1K can be mechanically applied. For precise information, see the additional Technical Information No. 43.
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Technical data sheet AQUAFIN®-1K Suitable substrate Plasters P II and P III Masonry work Concrete
Preparing the substrate Requirement for substrate 1. Load-bearing 2. Even 3. Pore open 4. Sealed in the surface 5. Free of adhesion inhibiting substances
Preparing the details Depressions > 5 mm and mortar pockets, plaster grooves in brickwork, open butt or bed joints, damaged areas, large pored substrates or uneven masonry work must be levelled in advance with ASOCRET-M30 (cement-based mortar).
Preparing the surface 1. Pre-moisten the dry substrate so that it is matt damp at the time of application. 2. Extremely absorbent and slightly sandy substrates must be primed with AQUAFIN-Primer. 3. The primer must be completely dry / must have reacted fully before the subsequent work steps are carried out.
Base slab-wall transition 1. Pre-screen with AQUAFIN®-1K or ASOCRET-M30 in a consistency that is able to screen. 2. While still wet, install a sealing cove with an edge height of at least 4 cm made of ASOCRET-M30. 3. After drying, carry out the waterproofing with AQUAFIN®-1K.
Application Mixing 1. Put the Approx. 6.7 l per 25 kg water into a clean mixing bucket and mix with the powder component to produce a homogeneous, lump-free mass. 2. Mixing time is approx. 2-3 minutes.
Waterproofing 1. Apply AQUAFIN®-1K in a minimum of two application steps ensuring it is free of pores. 2. The second application (and following) step can take place when the first application step can no longer be damaged by reworking. 3. An even layer thickness is achieved using a coating thickness trowel or notched trowel and then smoothing. 4. An application thickness of more than 2 kg/m² in one application step can lead to cracking.
Cleaning tools Clean tools thoroughly with water after use.
Storage conditions Storage Store in a cool and dry place. Min. 12 months in the original canister. Promptly use opened container.
Disposal Product residues can be disposed of in accordance with disposal code AVV 17 01 01.
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Technical data sheet AQUAFIN®-1K Notes Protect surfaces that are not to be treated from the effects of AQUAFIN®-1K! In case of strong sunlight, work against the movement of the sun in shaded areas. The substrate may be matt damp before application. The formation of puddles must be avoided. After the coating has hardened, keep the surface damp for ≥ 24 hours. Protect the fresh coating from rain, wind, frost and direct sunlight. A load-bearing substrate is a precondition for a long-lasting bond between the substrate and coating system. Less adhesive and bonddamaging substances must be completely removed. High-pressure water jetting (> 400 bar; < 2000 bar) and jets with fixed blasting agents are suitable measures. The last application step must be cleaning with pressure water jetting. In rooms with high humidity and/or insufficient ventilation (e.g. water containers), dropping below the dew point (condensation formation) may occur on the surface. This must be avoided by taking suitable measures such as by using condensation dryers. Direct heating or uncontrolled blowing warm air is not permitted. In the service water tanks, temperatures around +10 °C to +15 °C are usually expected. In order to ensure complete hydration of the cement, the coating is kept damp for a sufficiently long period (constant relative humidity of > 80%) and protected against drying. 7 days are generally sufficient for this. Do not add water or new mortar to existing AQUAFIN®-1K mortar that has already set in order to make it workable again. (Risk of inadequate strength development) For substrates that are subsequently prone to cracking, use AQUAFIN®-RS300, AQUAFIN®-RB400 or AQUAFIN®-2K/M-PLUS depending on the application.
Observe applicable safety data sheet! GISCODE: ZP1 Explanations Conformity / Declaration / Verification
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Technical data sheet AQUAFIN®-1K Impact classes and typical applications in accordance with DIN 18533 Impact classes and typical applications in accordance with 18533 Water exposure class
Water exposure
Example applications
W1-E
Ground moisture and non-pressurised water Capillary-bound water and water transported by capillary force even against gravity W1.1-E
W1.2-E
W2-E
Ground moisture and non-pressurised water for floor slabs and walls in direct ground
Ground moisture and non-pressurised water for floor slabs and walls in direct ground with drainage
Highly permeable subsoil Highly permeable back-filling of the building pit Minimum 50 cm above the design water level
Water-logging in poorly permeable subsoil is avoided through drainage Minimum 50 cm above the design water level
Pressure water Water pressing in from the outside can act as groundwater, flood water or backwater. W2.1-E
Moderate influence from pressure water ≤3 m immersion depth Backwater / flood water up to 3 m
W2.2-E
High exposure to pressing water > 3 m immersion depth Backwater / flood water over 3 m
W3-E
non-pressurised water on earth-covered ceilings Precipitation water that seeps through the earth fill to the waterproofing and must be drained off there
W4-E
Splash water and ground moisture at the wall base and capillary water in and under walls
Splash and seepage water affect the plinth surfaces, floor slabs and foundations Water can rise in capillary action in and under walls With double-shell masonry work, rainwater running off can seep into the space between the shells
Impact classes for container in accordance with DIN 18535 Impact classes for containers in accordance with DIN 18535 The water exposure class of a container depends on the filling level. Water exposure class
Filling level
W1-B
≤ 5m
W2-B
≤ 10m
W3-B
> 10m
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 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 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.
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