I am thinking of constructing a shower enclosure using toughened glass sheets (up to 1400mm x2500mm x8mm thick), and coating the back of the glass with a coloured gel coat / resin  / epoxy.

I have been quoted £2600 to purchase factory made coloured glass splash backs which is outside of my budget!

A plain / metallic grey (aluminium powdered?) would be the preferred finished colour.

UV stability will not be much of an issue due to very low natural light levels indoors.

I would like some advise on what would be the most suited gel coat / resin / epoxy that would bond well to glass, and could provide a good uniform colour (not opaque).

Thanks, Sean.