Try http://www.weatherbos.com/BossProd/TheBoss/index.htm
The say absolutly non toxic.

..Built mine 3 years ago
Applied product to the point of run off

http://photos.yahoo.com/jrock64rose check the pond album

jROCK



"nigel" wrote in message
...
I want to build a waterwheel for my pond can anyone advise me what type
of varnish is safe to use?
Thanks