Ah, cool...
You might want to try out some of this stuff:
http://www.corrosionfluid.com/fiberg....aspx#benefits
Or something similar, apparently the FRP (fiberglass-reinforced-plastic) is pretty strong (people can stand on it) though I can't seem to find any with a mesh smaller than 1.5"x1.5", and I'm not too sure about the pricing.