I sprayed my front and rear cameras with plasti dip for added protection. They have been underwater a few times and no problems yet.
Yeah, the old camera was supposed to be completely waterproof but it filled with water the first rain we got. So I dismantled it and cleaned it out and dried it up and used FIPG around the seal and around the chord going into the housing and it did the same thing next rain. I tried to get the seller to replace it but needless to say the language barrier between English and Chinese proved to be too big of an obstacle. So I bought another almost identical cam from an American seller this time. Hopefully it stays dry.