ARDEX WPM 185 - Grey | WPD Group

*Must be installed by a certified installer*

ARDEX WPM 185 is an A.P.P. type modified bitumen membrane.

  • Positive vapour barrier
  • Excellent resistance to atmospheric agents
  • Cold flexibility -5°C
  • Resistant to chemical attacks
  • Withstand thermal shocks
  • High puncture resistance

Typical Uses:
ARDEX WPM 185 is used as a cap layer in exposed membrane systems (allowing light foot traffic for maintenance). ARDEX WPM 185 is available in slate grey and green.


  • A.P.P.
  • Slate Grey
  • Green
  • White


  • Fibreglass and polyester (180g/m2)


  • 4.5kg/m2

Top surface:

  • Slate Chip

Bottom surface:

  • Torch film

Heat stability:

  • 110°C

Cold flexibility:

  • -5°C


  • 1m x 8m (W x L)
  • 45kg

Rolls per pallet:

  • 25

Primer Options:

  • Ardex WPM 240 (not needed if using immediately over base sheet)


Ardex WPM 185 PDS

Ardex WPM 185 SDS

Ardex WPM 185 Spec Sheet

Ardex WPM 185 VOC

Ardex Guide to Torch Applied Membranes

Ardex WPM 185 AS4654