Innovation built on experience

ProctorGeo D-Rain DC8 Plus


ProctorGeo D-Rain DC8 Plus (GeoD-Rain DC8+) is a dimpled HDPE sheet that provides an effective drainage and membrane protection layer for use with foundation walls, flat roofing and underground structures. The integration of a 100gsm non-woven geotextile over the 3-dimensional dimpled layer prevents soil particles from blocking drainage.

The D-Rain DC8+ structure effectively captures and transports high volumes of water and resists the loads from earth and formwork. The compressive resistance 200kPa will be suitable for most common applications but where a higher compressive resistance is required, please contact us with your requirements. Products such as D-Rain DC10+ may be suitable.

D-Rain DC8 Plus is installed with the non-woven geotextile facing the backfill, soil or ballast.


  • Provides an efficient drainage system for underground structures.
  • Acts as a protection layer over waterproofing membranes in horizontal and vertical applications.
  • When sealed, creates a vapour barrier.
  • Compressive strength permits usage in moderate load-bearing situations of up to 200kN/m²
  • Wide and easy to handle rolls result in rapid and low cost installation.
ProctorGeo D-Rain DC8 Plus

Technical data

Physical PropertiesTest methodResult (tolerance)
Compression resistance  200kPa (±20%)
Total thicknessEN 9863-1  8mm (±10%)
Total weightEN 9864  600g/m² (±5%)
Geotextile weightEN 9864100gm² (±15%)
Tensile Strength MD/CDEN 1031910kN/m (-20%)



 EN 10319 

50% (±25%)

50% (±25%)

Drain flow capacityEN 129580.25l/m.s. (-20%)
Horizontal application(M/R 20kPa i = 0.04)
Drainage flow capacity

Horizontal application

EN 12958

(M/R 20kPa i=1)

0.25 l/m.s (-20%)
Drainage flow capacity

Vertical application

EN 12958

(M/R 20kPa i = 1)

 1.75 l/m.s (-20%)
Spread of flame indexAS1530.30
Heath evolved indexAS1530.32
Smoke developed indexAS1530.33
Roll Width2m or 2.4m
Roll length20m
Rolls per pallet6

The information supplied here are based upon good practice and currently available information. Please contact us to discuss your project and any technical enquires.