50 ml. of panel bond, I really don't know how much that is in volume but its easy to use and to use it properly grind the metal with a roloc disc, lay some panel bond on each piece to be joined, cover the bare steel with the panel bond using a spreader then on the vehicle side lay yet another bead of panel bond down and join together. Once joined clamp it all together but if you need to make an adjustment slide the panels, DO NOT lift them, clean up the excess and follow cure times.