I have a 92 Four Winns with 2 back to back seats. Some of the vinyl corner seams on the top edges are starting to come loose due to the thread deterioration. I know the best way would be to tear the upholstry off and resew but since the boat is older is there any type of adhesive that I could use that would effectively hold the seam togeather. I not ready to just put duct tape over the area yet. Any suggestions would be appreciated.