BORNIT^® Slurry SF

status technical data sheet

13th December 2024

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.

Advantages

Surface

The mineral substrate must be clean, firm, free from separating substances, oils, and fats, and must be open-pored. Suitable methods for this are milling, sandblasting, shot blasting, or high-pressure water jetting with at least 350 bar. 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.

Processing

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.

Mixing:
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.
or
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.
To achieve a consistency tailored to the applicator, up to 1.0 liter of clean tap water can be added to the mixture.

Application:
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 6 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).

Post-treatment:
The applied slurry should be protected from strong winds, direct sunlight, frost, and moisture.

Consumption

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

Product type

sealing slurry based on cement

Base

cement

Density at +20 °C

approx. 1.60 g/cm³

colour(s)

grey

Application

quast and trowel

Cleaning

in fresh state with water

storage

store dry, in closed rooms

Shelf life

in originally sealed containers storable for 12 months

GISCODE

ZP1

GISCODE link comp. A

https://www.wingisonline.de/showbetrandoc.aspx?gisbaunr=4/00000012207/000009&docid=2161&lang=de

Hazard class according to ADR

keine

Water vapor diffusion resistance

60 (µ-value)

sD worth (2mm layer thickness)

0.12

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.

Storage

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).

Note

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.

GISCODE

ZP1

UN-number

Kein Gefahrgut im Sinne der Transportvorschriften.

Hazard pictograms

Signal word

Danger

Hazard-determining components for labelling

Cement, portland, chemicals

H-records

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).

P-records

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: