I use one part each of the AS Adhesive parts A & B and add an equal part of AS Thermal Compound to the mix. I have always been able to just twist off the ramsinks using this mixture. The one time I used only the AS Thermal Adhesive Parts A & B I had to use a razor blade being very careful to stay up against the bottom of the heat sink(s) to remove them. It was a PIA but they did come off. It was after this I decided to add the equal part of AS Thermal Compound to the mix. Makes it alot easier to remove ram sinks.