LONGSEAL
Longseal membranes are suitable for internal and external tanking of underground structures. In this type of application membranes must be laid strictly in accordance with all approved design details, and following Longseal application recommendations. Longseal has a bitumen zip strip edge on each side of the membrane, and this ensures excellent overlap integrity between adjacent rolls.

In all applications care should be taken to ensure that the proposed application substrate is dry, clean and free from sharp projections and loose debris.