A few days ago while experimenting with my mobile antennas as I grabbed my newest K 40 antenna the bottom magnet came unglued from the plastic housing above it. Well today I cleaned up to old glue residue and compared it to my old K 40 ( Looks like they cheapen the construction ). Anyway looks like I can get some construction adhesive and put it back together but I figure I better ask if there is any special adhesive I should be looking for or one to stay away from ?