Part of SIOEN

World market leader in kaders, laser cutting, welding and complexing of technical textiles, films and foils


At Coatex, we cut and we weld pond liners for water reservoirs, used in the construction of recreational ponds and industrial reservoirs, cultivating beds and dams, for customers worldwide.

Calendering is a process where polymers pass between rollers at high temperatures under high pressure to obtain a flat film. Our calandering line within the Sioen Industries Group, produces pondliners in different thicknesses, always on a 200 cm width. There is no risk for fish intoxication and it offers resistance against root penetration. We offer 0,46 till 1,5 mm thick material.


Rolls are available in different standard widths 2, 4, 6 & 8m, wider widths on demand


Prepacks are off-the-shelf products, available in different dimensions, packed in a solid PE bag, with possibility of adding your personalized insert. In addition to the prepacked foils , we also produce and supply non woven underlayers, prepacked or on roll.

Tailor made sizes

For exceptional projects, we can weld sheets up to 1000m².