[dgas]

The old VHT stuff works well ( I think it is now Mr Gasket or whatever Summit calls it now) BUT you HAVE to follow the directions to a T, the whole deal- sandblast, wipe clean w solvent -DO NOT TOUCH it w your bare hands!, Use plastic gloves. The oil in your skin will mess up the whole thing. Then cure per directions on the can. I used to have the same troubles until I actually did the whole routine including the warm up curing steps. I have a set painted white on a BBC car and they look great after 6 years w some yellowing around the ports is all.