Question
Is there any available brush on pond liners?  I know rubber
mat like liners are the norm and readly available but for my
situaution I need a brush on waterproof liner.  I was
thinking fiberglass resin, any ideas?

Answer
How big an area are you talking about if it is fairly small you might try brush on truck bed liner they use in pickup trucks. A resin may work but I would suggest going to a fibreglass supply store or marine supply. I will surf the web a little more and try to come up with a better answer.

   In the meantime if you find an answer please let me know.

         Keep Ponding
            Leigh.