BORNIT^® Slurry EL 1C

status technical data sheet

30th July 2025

Areas of application

BORNIT^® Slurry EL 1C is used for waterproofing against ground moisture and non-pressing water in the plinth area. BORNIT^® Slurry EL 1C can also be used, for example, for waterproofing terraces and balconies before tiling, for the protection of concrete surfaces, for waterproofing water tanks and for waterproofing swimming pools, wet and damp rooms under tiles.

Type and properties

BORNIT^® Slurry EL 1C is a cementitious, 1-component, crack-bridging surface coating with good adhesion to concrete, masonry and plaster, which is particularly suitable for substrates at risk of cracking due to its flexible properties. After drying, the product is waterproof, crack-bridging, abrasion-resistant and resistant to water attacking concrete.

Advantages

Surface

The substrate must be clean, firm and free from separating substances, oils and greases. 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 1C, 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.
Do not apply at ambient and substrate temperatures below +8°C or above +25°C and a maximum relative humidity of 75%. The dry mortar is thoroughly mixed with tap water (5.3-5.5 litres/bag) using a stirring tool at a slow speed (<500 rpm). After a maturing time of approx. 4-5 minutes, the mortar must be stirred again.
The pot life or working time is approx. 1 hour. For surface sealing, apply the ready-mixed material to the substrate in at least two coats using a brush, trowel or smoothing trowel. The second coat should be applied at least 12 hours after the first coat has been applied. For substrates at risk of cracking, for wall/floor connections and in corner areas, work BORNIT^® Glass Fabric 165 into the centre of the first layer. The curing time is approx. 1 to 3 days, depending on the weather conditions. During this time, the fresh coating must be protected from rain, other water exposure and frost. Permanent exposure to sunlight may cause discolouration. The sealing layer must not be exposed to mechanical stress and must be protected in accordance with DIN 18533-3.

Consumption

approx. 2.4 kg / m²

soil moisture and non-pressing water W1-E: 2 mm dry layer thickness = 2.4 kg / m²
splash water on the wall plinth W4-E: 2 mm dry layer thickness = 2.4 kg / m²

Layer thickness control

Minimum layer thickness 2 mm

Product type

flexible sealing slurry

Base

1-component system

Solvent

none

Consistency

after mixing: suitable for trowel application

colour(s)

grey

Application

brush, trowel or 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

Shelf life

can be stored for 12 months in originally closed containers

GISCODE

ZP1

GISCODE link comp. A

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

Bulk density

1.3 - 2.2 kg / dm³

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. 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: 10 13 11 wastes from cement-based composite materials other than those mentioned in 10 13 09 and 10 13 10.

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

No dangerous good in sense of these transport regulations.

Hazard pictograms

Signal word

Danger

Hazard-determining components for labelling

Cement, portland, chemicals