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 Width 2m or 2.4m
Roll length 20m
Rolls per pallet 6

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