Source of metal or plastic sheets for waterfall?

[secuono]

My spillway is very wide.
Rocks are heavy, expensive and hide filth.
Hoping someone knows of a UV stable plastic or rust-proof metal that can be glued or bent into 1ft by 16 or so foot lengths. Could do shorter if they can seal together.
Any ideas?

[joe09]

My spillway is very wide.
Rocks are heavy, expensive and hide filth.
Hoping someone knows of a UV stable plastic or rust-proof metal that can be glued or bent into 1ft by 16 or so foot lengths. Could do shorter if they can seal together.
Any ideas?

the standard waterfall liner is 45 mil epdm the same that you use to line your pond. just cup the edges so you dont have side spill. rocks give it a natural effect

[coolwon]

Stainless steel sheeting can be bent and joined together by tig welding each piece of metal together.

304 could develop surface rust spots.

316 is rust free.

Cost! An arm and a leg,but it is for life.

Std sheet size 8 x4 feet.