How do I hang a mosaic art work in a secure way?

[Matazoha]

Hi there

I'm a created a mosaic work made out of glass tiles on a mesh. My plan is to glue that on a 4.5mm thick cement sheet and then screw at the back of it aluminium French cleats an hang it on a bathroom wall. It is not going to be above the bath, but at the wall next to it.

An consultant at Bunnings advised me that it is not a good idea because I can't screw into cement sheet because though it is hard board, it is also brittle and won't hold the weight for the long term. Also, it would be to flexible to carry it on during the hanging process and it might snapped.

I'll appreciate if you can advise me about a better method to do so. The size of the artwork is 2m X 40cm (approx.). the overall thickness of the mosaic artwork is 3.5mm.

[MitchellMc]

Yes, it is; they are both construction adhesives.

Mitchell