If the embankment walls are made of concrete and the pond liner is to be fixed there, good advice is often expensive. You can find out in detail in our article which solutions are possible here and which work less well.
Pond liner can be glued to concrete, for example
problem
Fastening the pond liner is essential in this case. It must be pulled up to the edge of the embankment. In order to fix them there, however, a stable solution is required.
Special conditions then apply to the fastening materials:
- they must be highly corrosion-resistant (since they are constantly in contact with the water in the pond)
- they must not expand too much in length when heated (poor hold, no tight screwing possible)
- they should offer a way of optically concealing the attachment
bonding
This is a very good and very easy way gluing the foil. As an adhesive that adheres well to concrete, one should think primarily of the adhesives that roofers also use to glue foils firmly and permanently.
These are usually adhesives based on styrene rubber. They are suitable for both PVC and EPDM foils and reliably and permanently bond the foil to the concrete.
In terms of cost, gluing is not expensive - for 2 - 3 m² of foil you need glue for around 15 EUR.
rail attachment
In addition to gluing or as the sole measure for fastening, rails are particularly suitable. Due to the high level of corrosion resistance required and the low expansion required, only anodised aluminum and stainless steel can be considered here.
Plastic splints are a poor choice because while they resist corrosion well, they can quickly expand significantly when heated. The solar radiation is often particularly intense in the bank area, which also leads to intensive warming.
In order to conceal the rails visually, you can easily clamp bank mats under the rails and then simply let them hang down over the rails later. This makes both the pond liner and the rail in the bank area invisible.
tips
A combination of gluing and rail fastening will probably make the most sense. This guarantees a permanent hold in any case.