Product Data Sheet Show all documents
Sika® Drain-850 Geo

Sika® Drain-850 Geo

Dimpled drainage and protection sheet with integral filtration layer

Sika® Drain-850 Geo is a high density polyethylene (HDPE), heavy duty drainage and protection sheet with 10 mm high dimples on the bottom layer and a bonded geotextile (PP) filtration layer on the top layer.

  • High drainage capacity
  • High mechanical/impact resistance
  • Integral filtration layer
  • Resistant to natural aggressive substances in ground water and soil
  • Suitable for contact with soft water (aggressive to concrete)
  • Can be installed on damp and wet substrates
  • Forms a drainage channel in the space between the structural elements and the backfilling/soil/substrate to allow water to be drained away
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Product Data Sheet Show all documents

Usage

As a protection and drainage sheet for:
  • Preformed sheet and liquid applied membrane waterproofing systems
  • Sika® White Box concept for waterproofing retaining walls and heavy duty use roofs/podiums
 

Advantages

  • High drainage capacity
  • High mechanical/impact resistance
  • Integral filtration layer
  • Resistant to natural aggressive substances in ground water and soil
  • Suitable for contact with soft water (aggressive to concrete)
  • Can be installed on damp and wet substrates
  • Forms a drainage channel in the space between the structural elements and the backfilling/soil/substrate to allow water to be drained away

Packaging

Roll size

Length

~12,50 m

Width

~2,44 m

Refer to current price list for packaging variations

Colour

Top layer

Bonded filtration geotextile / White

Bottom layer

HDPE sheet with 10 mm deep dimples / Brown or black

02_en_SikaDrain_850_1000

Product Details

Sustainability / Certifications / Approvals

APPROVALS / STANDARDS

Conforms to the requirements of EN 13252:2016 – Geotextiles and geotextile-related products intended - For use as filtration and separation (F+S+D) in drainage systems

DoP 79308994, certified by Factory Production Control Body 1213 and provided with the CE mark
Product Information

Shelf Life

5 years from date of production

Storage Conditions

Product must be stored in original unopened and undamaged packaging in dry conditions and temperatures between +5 °C and +35 °C. Always refer to packaging.

 

Thickness

10,0 (±1,0) mm (at 2 kPa pressure)

(EN ISO 9863-1)

Weight

120 (±12) g/m2 (geotextile)

(ISO 9864)
Technical Information

Resistance to Static Puncture

1,6 (-0,32) kN (geotextile)

(EN ISO 12236)

Tensile Strength

Machine direction

12 (-2) kN/m

Cross machine direction

10 (-2) kN/m

Elongation

Machine direction

50 (±20) %

Cross machine direction

50 (±20) %

Ambient Maximum Temperature of Liquids

+32 °C (water)

Drain flow capacity

Horizontal application*

(S/R, i= 0,04)

0,60 (-20 %) l/(m·s)

Vertical application*

(S/R, i= 1)

3,5 (-20 %) l/(m·s)

*Values at at 20 kPa pressure

Resistance to dynamic perforation

32 (+6) mm (geotextile, cone drop test)

(EN ISO 13433)

Compression resistance

400 (± 20 %) kPa

Water flow capacity

110 (-33) l/(m2·s)

(EN ISO 11058)

Application

Application Information

Ambient Air Temperature

-10 °C min. / +55 °C max.
Application steps

SUBSTRATE QUALITY

All substrates must be clean and free of all contaminants such as dirt, oil, grease, dust and loose friable particles to allow full capacity water flow.

APPLICATION

Installation procedure

Strictly follow installation procedures as defined in method statements, application manuals and working instructions which must always be adjusted to the actual site conditions.

Installation method – General

The waterproofing membrane is installed by loose laying and mechanically fastening

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