Can anyone recommend a die lubricant for forming a galvanized steel tube? We have a hydraulic swaging machine that slightly swages a tube to grip a bearing, but when we do this with a steel tube with a zinc coating, the tube will often stick in the die and foul up the operation of our automated manufacturing cell. We do not use a lube with bare steel tube and have no sticking problem. I hope someone else may have a favorite die lube for forming galvanized steel sheet and I would like to give that a try.

Thanks for your help,