Quote Originally Posted by David Allen View Post
In my previous darkroom I built my own sink simply using MDF sealed with boat varnish - worked a treat!
I've also built a similar wooden sink, sealed with epoxy resin, the material that's used to set fibreglass mat.

Another idea I've heard about but not tried, is to make a wooden frame the size and depth of the sink you need, then place a sheet of plastic sheet into it and up over the sides. Very cheap to build, but a bit of a problem to drain, I think.