BORNIT^® Slurry EL 2C

status technical data sheet

17th June 2026

Areas of application

BORNIT^® Slurry EL 2C serves waterproofing against ground moisture and non-pressing water. BORNIT^® Slurry EL 2C is used, e.g., for terrace and balcony waterproofing prior to tiling, for protecting concrete surfaces, for waterproofing water tanks as well as for waterproofing swimming pools, wet and moist rooms under tiles.
BORNIT^® Slurry EL 2C is not suitable for waterproofing against water loads acting on the rear.

Type and properties

BORNIT^® Slurry EL 2C is a cementitious, two-component, crack-bridging surface coating with good adhesion on concrete, masonry and plaster, which with its flexible properties is particularly suitable for substrates at risk of crack formation. After drying, the product is waterproof, crack-bridging, abrasion-resistant as well as resistant to water aggressive to concrete.

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 eliminated. Masonry must be fully grouted. Absorbent substrates must be primed with BORNIT^® Basic Primer. Non-absorbent substrates are pre-wetted slightly damp. Standing water must be removed. Shrinkage holes must be filled.

Processing

Upon processing BORNIT^® Slurry EL 2C, in principle, the current “Guideline for planning and execution of waterproofing of building components in contact with the ground with flexible sealing slurries” must be observed. BORNIT^® Slurry EL 2C is not suitable for waterproofing against water loads acting on the rear. Processing must not be undertaken at ambient and substrate temperatures below +5 °C or above +30 °C. The two components are delivered in containers holding the respectively required quantities. The mixing ratio of liquid component: powder component is approx. 1 part by weight: 3 parts by weight, i.e., 25 kg of the powder component have to be mixed with 8 kg of the liquid component. Add the powder component to the liquid (not vice versa) and mix them into a homogeneous and lump-free compound using a slow-running agitator with stirring paddle. Do not stir too much air into the compound. To achieve a consistency tailored to the applicator, up to 0.5 liters of clean tap water can be added to the mixture.The pot or processing time, resp., is approx. 1 hour. For surface waterproofing, apply the ready mixed material to the substrate in at least two coats using a wide brush, trowel or smoothing trowel. In case of substrates at risk of crack formation, for wall/floor connections and in corner areas, embed BORNIT^® Glass Fabric 165 centrally into the first layer. In order to achieve particularly smooth surfaces, the surface must be smoothed with a slightly moistened rubber slider or the like. Depending on the weather, the thorough hardening period is approx. 1 to 3 days. During this time, the fresh coating must be protected from rain, other water loads and frost. In case of permanent solar irradiation, discolouration is possible.

Consumption

approx. 3.4 kg / m²

soil moisture and non-pressing water: 2 mm dry layer thickness = 3.4 kg / m²
splash water on the wall plinth: 2 mm dry layer thickness = 3.4 kg / m²

Layer thickness control

Minimum layer thickness 2 mm

Product type

flexible sealing slurry

Base

2-component system

Solvent

none

Density at +20 °C

component A: 1.1 – 1.3 g/cm³ component B: 1.03 g/cm³

Consistency

after mixing: suitable for trowel application

colour(s)

white

Application

smoothing trowel

Processing time

approx. 1 hour

Thorough hardening time

1 to 3 days

Cleaning

in the fresh state with water, in the hardened state mechanically

storage

store dry, cool but frost-free

Shelf life

can be stored for 12 months in originally closed containers

GISCODE

BZM 1 (powder)
BZM 2 (mixture)

GISCODE link comp. A

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

GISCODE link comp. B

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

Substances hazardous to health in terms of the ordinance on hazardous materials

contains cement, therefore alkaline reactions, for more information see “Health and fire protection, occupational safety”

Hazard class according to ADR

none

Minimum layer thickness

2 mm

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 cool, but frost-free. In originally sealed containers storable for 12 months.

Disposal note

Component A Only recycle completely empty containers. Material residues can be disposed of according to AVV-ASN: 170101 (concrete). Component B Material residues can be disposed of according to AVV-ASN: 070208* (other reaction and distillation residues).

Note

The information set out above supersedes all previous technical information relating to the product. The previous information is therefore no longer valid. The details have been compiled in accordance with the latest state of the art in application technology. Please note, however, that depending on the condition of the building, it may be necessary to deviate from the working method recommended in this data sheet. Unless otherwise agreed in an individual contract, all information contained in this data sheet is non-binding and therefore does not constitute an agreed product specification. We reserve the right to make changes to the information contained in this data sheet at any time.

The product illustrations are to be understood as examples. No legally binding claim can be derived from them. We reserve the right to make changes to the product’s appearance.

Our packaging complies with the relevant legal requirements and with Regulation (EU) 2025/40 on packaging and packaging waste (PPWR). The technical documentation in accordance with Annex VII is available and can be provided on request by email to info@bornit.de.

GISCODE

ZP1

UN-number

Kein Gefahrgut im Sinne der Transportvorschriften.

Hazard pictograms

Signal word

Danger

Hazard-determining components for labelling

Portland cement clinker

H-records

H315: Causes skin irritation.
H318: Causes serious eye damage.
H335: May cause respiratory irritation.

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.
P310: Immediately call a doctor.

Recommended, personal protective equipment:

GISCODE

ZP1

UN-number

Kein Gefahrgut im Sinne der Transportvorschriften.

EUH-records

EUH208: Contains 1,2-Benzisothiazol-3(2H)-on; 1,2-Benzisothiazolin-3-on. May produce an allergic reaction.

Recommended, personal protective equipment: