Silver nitrate mirror on 3d printed sla resin For a project, I need to develop special array of reflectors.

Usually this is done through a process of plastic injection and vapor deposition, however the prototyping cost is very high. 

Another solution I would like to explore is to 3d print the array of reflector with SLA printer like Form 3 and then deposit silver through the process of silver nitrate on solution. 

However, I wonder if that could work and if the bond would be good enough, if the resin part would need prior treatment. 

Another method could be by depositing a conductive layer and then do electroplating. 

I'm not a chemist and don't really know where to start looking. 

Thanks
My experience with glass reduced-silver mirrors is that bonding is poor, and that unprotected Ag rapidly degrades in air (a matter of days, in some cases). The bond to organic surfaces, I believe, might be worse. 

If you have access to a fairly good vacuum pump (less than 10-4 Torr), it's not hard to aluminize. Watch a demo online.

You might also request a quote from an aluminization service, such as those in this list. In 2010, a 200 mm diameter mirror was said to cost about US$70 to aluminize. This British service has an online price list, starting at £20.