Formaliner impermeable geomembranes are heavy-duty linear low-density
polyethylene weldable impermeable geomembranes, for Formavoid stormwater
attenuation and containment applications. Specifically selected for flexibility, tensile strength, puncture resistance and chemical stability.
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It is advised that joints hot air welded with a twin wedge welder and tested with an air lance. For attenuation applications, membrane panels may be sealed with double sided Formaliner jointing tape subject to design specification.
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For use in accordance with harmonised standards: BS EN 13361/13362/13492.

Advantages
Flexible installation with the choice of welding or jointing tape to suit site conditions.
Available in a range of roll widths up to 7m.
Supplied to the m² to reduce wastage.

Weldable joints

Weld Testing

Forma Jointing Tape
