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PermaSEAL 8 Clear 48m² Waterproof Membrane Kit

£210.00 Ex VAT
£252.00 Inc VAT
Out of stock

PermaSEAL 8 Clear is a BBA Approved, high quality cavity drain waterproofing membrane suitable for use internally below ground to retaining walls, vaulted soffits and floors.

Basement Waterproofing Kit

PermaSEAL 8 Clear is a high quality high density polyethylene (HDPE) membrane suitable for use in waterproofing structures below ground level (basements) and isolating damp walls above ground level. The stud depth of 8mm provides versatile use as both a wall and floor applied membrane. The membrane can be finished with baton and board or a metal track or independent wall infront.

Kit Contents

This basement waterproofing kit contains all you need:

  • 1 x PermaSEAL 8 Clear Waterproofing Membrane 2.4m x 20m (48m²)
  • 1 x PermaSEAL Tape (for membrane jointing)
  • 2 x PermaSEAL Brick Plug Super (bag of 100) 
  • 2 x PermaSEAL Brick Plug Sealing Washers (bag of 100
  • 1 x 10mm SDS Drill Bit

PermaSEAL 8 Clear is suitable for use in accordance with BS8102:2009 to provide Type 'C' drained protection to structures below ground providing a Grade 3 dry environment suitable for domestic or commercial use.

It is essential that if applied in this way it is used in conjunction with the PermaSEAL Sump and pump system (unless passive drainage is available on one side of the building) and that this is maintained throughout the lifetime of the installation.

PermaSEAL 8 Clear is guaranteed for 30 years and has a life expectancy of at least 50 years (DIN 9001:2000). P-Seal 8 Clear is an inert product with high compressive loading stability. It is highly resistant to water, alkalis, saline solutions and organic acids, and is not affected by minerals. It is also resistant to bacteria, fungi, and other small organisms.

Our innovative PermaSEAL Quick Plug is used when fitting the PermaSEAL 8 Clear to the wall and if a below ground waterproofing system is being installed then it should be used with our Drainage Channel, Floordrain and sump and pump drainage systems.

This clear waterproofing membrane can accept a range of wall and floor finishes. PermaSEAL Quick Plugs and Brick plugs accept screws which allow for the addition of batons and metal lath systems which can be insulated before the addition of plasteboard finish. Fixtures, fittings walls and staircases can be built off PermaSEAL 8 Clear membrane. When used as a floor membrane insulation, underfloor heating, screed and floating floors can all be accommodated.

PermaSEAL BBA approved waterproofing system

Our PermaSEAL waterproofing system has BBA approval, awarded by the UK’s leading building product certification body. Independent, expert-led and trusted by professionals, BBA certificates are a symbol of quality within the construction industry. You can use our PermaSEAL 8 and 20 membranes and related products safe in the knowledge they have been independently tested to ensure the highest quality levels.

Related Resources

Make sure you comply with BS8102 Regulations. Read our guide to Basement Conversions for more information or browse more basement waterproofing products.


  • BBA Approved system
  • 8mm stud depth providing 5.3 litres of drainage volume per m2
  • High compressive load bearing strength 200kN/m2
  • Waterproof, salt resistant, root resistant, contaminant resistant
  • Easy to bend, form around windows, doors, vaulted ceilings etc
  • Easy to cut with scissors
  • Low and high temperature tolerances
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