GT Membrane 500
We offer a range of impermeable liners for wrapping modular water storage units/blocks, creating a watertight barrier to prevent storm water from filtering and saturating the surrounding ground.
GT Membrane 500 is a standard impermeable geomembrane used for standard ‘attenuation tank’ applications in SUDS.
The membrane is completely wrapped around the modular water storage tanks to make them watertight, then the whole tank together with the membrane is wrapped with a protection fleece geotextile to prevent the membrane being punctured.
This geomembrane is a standard impermeable membrane used for standard “Attenuation Tank” applications in SUDS. The membrane is completely wrapped around the modular water storage tanks to make them watertight, then the whole tank together with the membrane is wrapped with a protection fleece geotextile to prevent the membrane being punctured.
Please note that for higher risk applications a thicker geomembrane is usually required, however this is usually specified by the client.
Resistance to Water and Water Vapour
The Geomembranes and methods of jointing provide an effective barrier to the passage of liquid water and water vapour from the ground.
Adjacent sheets should be overlapped by at least 150mm and should be bound with jointing tape. Double sided and single sided tape is available on request from sales office.
Resistant to attack by inorganic acids, alkalis and salt solution which cause corrosion to metals and dilute solutions of detergent or bleaches.
Resistance to UV Light
Does not have UV stabilisation therefore not recommended for long periods of exposure to sunlight. Weathering will not occur when installed in accordance with geotechnical engineer’s instructions.
Resistance to Puncturing
Has a high standard of resistance when used in accordance with suitable protection layer which should be specified by and engineer on site. Care should be taken to avoid damage during storage, handling and installation.
GT Membrane 500 Specification
|Elongation at Break||Unaged (%)||>500|
|Ageing at 56 days at 80 oC (%)||>250|
|Impact strength||Body (F50,g)||>1000|
|Durability - effective operational temperature range (oC)||25-60|
|Roll size (m)||4 x 12.5|