Silver elctroplating polyester articles

Hi.

I am attempting to silver electroplate certian decorative items
cast from polyester ( Crystic ).

I use bronze powder/lacquer for making the surface conductive
and subsequently electroplate the piece. I manage to get the
initial depositation however fail to get an electroplate shiney
finish.

Could someone please help out with a process that has been
successfully tried.

Thanks in advance

Rajah.

Ps I would me more than glad to share the exact details of the
procedure that I have been attempting.