Can any body suggest a brand of sealant which will be safe to use in a water course, and available in something other than black and white? I have 'faced up' in natural green (lakeland) slate and would like to finish the seams and joints in some sort of mastic which won't harm the fish. As the joints are small I would prefer to finish them with a narrow bead rather than pointing conventionally and sealing with G4.
I don't expect to get this at the local B&Q so any suggestion, however 'off the wall' will be appreciated.
Posted on Oct 17, 2005, 11:54 AM from IP address 81.130.186.56