Premseal 100 Self-Adhesive Tanking Membrane 1m x 20m

High performance self-adhesive membrane - ideal for use as an external tanking membrane when used with a Geodrain Membrane. Also suitable as a damp proofing membrane.



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Availability: Out of stock


RRP £226.00 Ex VAT
£157.50 Ex VAT £189.00 Inc VAT

Self-Adhesive Membrane

Premseal 100 Self-Adhesive Tanking Membrane is used primarily as an external tanking membrane when waterproofing below ground structures. In these instances, it should be used in conjunction with PermaSEAL 8 Geodrain Membrane.

Premseal 100 can also be used as a tanking membrane or a self-adhesive damp proof membrane in vertical and horizontal applications.

The self-adhesive membrane is tough and durable, with an overall thickness of 1.5 mm. It is constructed from a cross laminated high-density polyethylene sheeting and a bitumen-polymer adhesive compound. 

Installing a Self-Adhesive Membrane


Make sure that the vertical surfaces that you are applying the tanking membrane to have a smooth finish. They must also be free of loose mortar and dust. Brickwork and blockwork should be dry and pointed or rendered.

The surface would need to be sealed with our self-adhesive bitumen primer. You then need to allow the primer to dry thoroughly prior to installation. 


When installing the self-adhesive membrane make sure you apply pressure to the entire surface of the membrane. This ensures good adhesion. All laps and joints must be a minimum of 150mm and rolled to ensure a continuous watertight bond.

When installing the self-adhesive membrane externally, you should use protection boards or PermaSEAL 8 Geo Drain Membrane. This will protect the membrane from damage during backfilling. 

Important Note: Premseal 100 Self-Adhesive Tanking Membrane should not be applied in temperatures below 5 degrees, or in wet or misty conditions. 

Premseal 100 Self-Adhesive Tanking Membrane conforms to BS 8102:2009 as 'Type A' Waterproofing 'barrier protection'. The product has BBA certification and is CE approved.

Permagard – Providing Solutions. Inspiring Confidence. 

If you have any questions about self-adhesive bitumen membranes or external waterproofing generally then our technical team is available to help. Call us on 0117 982 3282. We also stock a gas resistant self-adhesive membrane if you are operating in a gas affected area. 


  • Self-adhesive membrane for horizontal and vertical applications above and below ground
  • Tough and durable with good resistance to puncture and tearing
  • Conforms to BS 8102:2009 for Type A Barrier Protection
  • BBA Approved
Model: Premseal 100 Self-Adhesive Tanking Membrane 1m x 20m
Manufacturer: Capital Valley Plastics
Packaging: Individual
Size: 1m x 20m
Dilution: N/A
Coverage: 1m x 20m
Country of Manufacture: United Kingdom

Need more information?

Speak to our technical experts.
0117 982 3282

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