About a year ago I removed and replaced the cracked and leaking seam sealer on my 87 dodge daytona shelbyz. I used seam sealer from autozone that has cracked on the one side and is starting to fall off of the body of my car. My one friends that does body work says to go to home depot and buy some paint-able latex caulk. Should I use latex caulk instead of seam sealer? Who makes the best seam sealer that I can buy?