I remember reading a review where they through in sliced cheese ? LOL , really.
I got a test tube from IC Diamond in that forum test they mention on their web site.
Worked well.
The factory stuff applied on the H50 seems to work well. Shin Etsu ?
edit: Also way back in the late 90's , I had recalled that super glue, could be used. So I used it on one of the first 2d/3d cards that I had back then. I can't recall which one it was, but it worked well, I had also added a fan, where there had been none on the card.