Plasticizing silver

Silver has the highest reflectance of any metal (almost 100%) but
tarnishes easily. Has anybody tried plasticizing it to prevent
tarnish?

I don’t know about plasticizing, but you can try coating it with
ProtectaClear from http://www.ganoksin.com/gnkurl/1lm

It comes in both high shine and satin finish. A great product that
lasts a long time. Not affiliated, just love the product.

Michele