SRD:Silversheen

Silversheen: This substance can be applied to a weapon as a standard action. It will give the weapon the properties of alchemical silver for 1 hour, replacing the properties of any other special material it might have. One vial will coat a single melee weapon or 20 units of ammunition.

Faint transmutation; CL 5th; Craft Wondrous Item; Price 250 gp.