I borrowed my daughter's kayak which has paddles that come apart that I
didn't take apart and rinse after going into salt water. Now I can't get one
apart. Some corrosion inside. They are aluminum tubes that slide into each
other that are corroded.

Any ideas on some type of spray lubricant or other type of spray that I
could spray inside to see if that would help?



Also, I can't use much heat because paddles covered with plastic type
coating, but I am wondering if a hair dryer my help.