Alexei Pace wrote >I have a sundial of a friend of mine...who tried to replace a rusty gnomon >but ended up breaking/chipping part of the stone of the dial itself.....its >a freestanding veritcal dial... > >With what can i attach the stone and the gnomon back in place? I thought >some epoxy glue would work maybe? >Can you please mention to me also some trade names so i can look for it by >name?:)
POLYVINYL ACETATE (PVA.) often sold as wood glue - exterior waterproof grade (a white milky liquid) is very good for joining broken stonework or concrete. It dries to be almost invisible and any excess can be washed off with water before it has set. Being quite thin in consistency it is easily squeezed out of the joint so no 'glue line' is visible. Epoxy resins are usually thicker, more difficult to squeeze out and cannot be cleaned off with water - methylated spirit does that job quite well. A common trade name in U.K. e.g. 'Resin W' Hope this is some help Tony Moss.
