wall | foundation | mineral slurry | sealing | waterproof
short information
  • rigid, cement-bound sealing slurry
  • for sealing water tanks
  • sealing of interior cellar walls (negative side)
  • with capillary blocking and crystallizing substances
  • for vertical and horizontal surfaces
  • waterproof after drying
  • environmentally friendly as it is solvent-free
  • permeable to vapor diffusion
Slurry SF
25 kg / bag
sufficient for:
EAN code
euro pallet
approx. 6.25 m²
4 017228 00457 0
40 bag
  • combined waterproofing: approx. 1.5 kg/m² (1 coat)
  • negative-side waterproofing: min. 3 kg/m² (2 coats)
storage note
  • store dry, in closed rooms
  • in originally sealed containers storable for 12 months

status technical data sheet
13 November 2020

areas of application
BORNIT® Slurry SF is used for waterproofing horizontal and vertical surfaces made of concrete, masonry or cement plaster. The product can be used for sealing of walls and for tank sealing.
Sealing with BORNIT® Slurry SF must only be applied to building structures, where any formation of cracks is not to be expected.

type and properties
BORNIT® Slurry SF is a cementitious, hydraulically reacting powder with capillary blocking and crystallising agents for mineral waterproofing of building structures against soil moisture, seepage water and pressing water. BORNIT® Slurry SF can be used on the negative side (water penetrating from the rear) as well as on the positive side (side facing the water).
The rigid seal achieves good resistance to chemical and mechanical stresses. BORNIT® Slurry SF is free from soda and chlorides and is sulphate resistant.

  • waterproof after drying out
  • environmentally friendly as it is solvent-free
  • vapor diffusion tight
  • easy to process
  • mineral substrate for subsequent products
  • safe protection also against pressing water for negative and positive side

The mineral substrate must be clean, firm and free from separating substances, oils and greases. Voids and depressions must be removed. Masonry must be fully grouted. The substrate must be moistened prior to application. Standing water must be removed. Dusty and salt-damaged substrates must be primed with BORNIT® Basic Primer. Rigid mineral sealing slurries are not capable of bridging crack formation. Therefore, it must be ensured that no crack movements occur in the substrate.

For processing BORNIT® Slurry SF, in principle, the current “Guideline for planning and execution of waterproofing of building components with mineral sealing slurries” must be observed.

Mix BORNIT® Slurry SF with clean tap water into a smooth, spreadable compound. The powder is added to the water in portions under stirring.

Mixing ratio:
Mix the 25 kg bag contents with approx. 8 l of tap water.
Mix the 25 kg bag contents with approx. 6 l of tap water plus 1-2 kg of BORNIT® Stick Emulsion.
Adding BORNIT® Stick Emulsion to the mixing water increases the water retention capacity and prevents burning up of the slurry in warm weather.

Apply the slurry with a wide, firm brush onto the plaster or concrete in at least 2 coats. Between applications of the individual coats, at least 3 hours, at most 24 hours should pass.
The provisions of DIN 1045 must be complied with, i.e. avoidance of heat, frost and strong wind during execution and at least 24 hours thereafter. Keeping the applied layer moist can be omitted, when at least 15 % of BORNIT® Stick Emulsion were added to the mixing water.

Combined waterproofing:
BORNIT® Slurry SF can be applied directly under thick bitumen coatings (BORNIT® 1C and 2C Thick Bitumen Coating, BORNIT® Profi 1C Express, BORNIT® 2C Flex Thick Bitumen Coating, BORNIT® Profi Hybrid 2C, BORNIT® Mineral Flex 2C). This pre-treatment reduces the risk of blistering in the polymer-modified thick coating on porous substrates and excludes the risk of water ingress at problematic wall/floor connections. Apply BORNIT® Slurry SF directly onto the fully grouted and void-free masonry. After a drying period of min. 24 hours, the thick bitumen coating is applied.

Negative-side waterproofing:
Brittle, loose joints must be cleaned and closed flush with the surface with BORNIT® Sealing Mortar. Following thorough hardening of BORNIT® Sealing Mortar, the surface to be waterproofed is primed with BORNIT® Basic Primer (consumption: min. 120 g/m², for highly absorbent substrates up to 250 g/m²). After a waiting period of at least 30 minutes, the first coating with BORNIT® Slurry SF is applied (consumption: 1.5 kg/m²). The second waterproofing layer of BORNIT® Slurry SF is applied after approx. 30 to 60 minutes (when the first layer of the waterproofing cannot be damaged by the application of the second layer anymore). Here, consumption likewise amounts to 1.5 kg/m². Final bonding takes place with a last application of BORNIT® Basic Primer (consumption: min. 250 g/m²).

combined waterproofing: approx. 1.5 kg/m² (1 coat)
negative-side waterproofing: min. 3 kg/m² (2 coats)

product data in brief
product type
sealing slurry based on cement
density at +20 °C
1.85 kg/l
quast and trowel
in fresh state with water
store dry, in closed rooms
shelf life
in originally sealed containers storable for 12 months
BZM 1 (powder)
BZM 2 (mixture)
GISCODE link comp. A
GISCODE link comp. B
hazard class according to ADR
Water vapor diffusion resistance
60 (µ-value)
sD worth (2mm layer thickness)

health and fire protection, occupational safety
To ensure safe handling of the product, the physical, safety, toxicological and ecological information provided online, the information in the current safety data sheet and the additional information on the label must be read and followed before purchasing or using the product! The applicable regulations, ordinances and laws must be complied with.

In case of doubt, please contact the BORNIT® application technology department or the BORNIT® service hotline on +49 375 2795 123.

The product must be stored dry, in closed containers. In originally sealed containers storable for 12 months.

disposal note
Only recycle completely empty containers. Material residues can be disposed of according to AVV-ASN: 170101 (concrete).

The above information replaces all previous technical information about the product. Thus, this information is no longer valid. The details have been compiled according to the latest state of application technology. Please observe, however, that, depending on the state of the construction object, deviations from the method of application suggested in the datasheet may be required. Unless agreed otherwise in individual contracts, any information contained in the datasheet shall be non-binding and thus does not represent an agreed product constitution. We reserve the right to any changes in the information contained in this datasheet anytime.
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BORNIT-Werk Aschenborn GmbH
Reichenbacher Straße 117
D-08056 Zwickau



EN 1504-3:2005 ZA.1a
Concrete replacement product for statically and non-statically relevant repairs, mortar application by hand

Compressive strengthClass R1
Chloride ion content≤ 0.05 %
Adhesive capacity≥ 0.8 Mpa
Impaired shrinking/swellingNPD
Carbonisation resistanceNPD
Modulus of elasticity>10 Gpa
Temperature change toleranceNPD
Thermal expansion coefficientNPD
Capillary water absorptionNPD
Fire behaviourClass E
Hazardous substancesNPD


Safety Data Sheet Poison Information Centre , 24h: +49-361-730730

ERFURT - Poison Control Centre Erfurt, Joint Poison Information Centre of the federal States of Mecklenburg-Western Pomerania, Saxony, Saxony-Anhalt and Thuringia; ggiz@ggiz-erfurt.de; www.ggiz-erfurt.de

-     What: name of the substance or product as precisely as possible, etc.
-     How much: as exact a quantity as possible
-     Who: Age, weight, sex and condition of the person(s) concerned.
-     When: Time of the event
-     Where: Place of occurrence
-     How: ingestion, inhalation, skin contact, etc.
-     Why: accidentally or intentionally

component A


Kein Gefahrgut im Sinne der Transportvorschriften.

Hazard pictograms

signal word

Hazard-determining components for labelling

H315: Causes skin irritation.
H318: Causes serious eye damage.
H335: May cause respiratory irritation.
H373: May cause damage to organs ( state all organs affected, if known) through prolonged or repeated exposure (state route of exposure if it is conclusively proven that no other routes of exposure cause the hazard).

P101: If medical advice is needed, have product container or label at hand.
P102: Keep out of reach of children.
P260: Do not breathe dust/fume/gas/mist/vapours/spray.
P280: Wear protective gloves/protective clothing/eye protection/face protection/hearing protection.
P305 + P351 + P338: IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.
P312: Call a doctor if you feel unwell.

recommended, personal protective equipment:

component B

BZM 2 (Mischung)