Hi, Hoping to get some help or advice. My son dropped my Hoya HMC circular polarizing filter and the lens snapped out of it. The lens is okay, but I can't figure out what kept it in the ring. I did find a rubber band type thing on the floor and wonder if that is what kept it in. Could I use a very thin bead of silicone to re-attach it? Or must I return it to company for repairs? Thanks for any help!