ever re-lubricate a 9-track tape?

[somehow this question makes me think of sex] Does anyone have experience re-lubricating 9-track tapes? I have some old 9-track 1/2" tapes which appear to be in good shape. I baked them but they end up squeeking in the drive and eventually the drive says "tape stuck". After reading this http://www.ukoln.ac.uk/services/elib/papers/supporting/pdf/p2.pdf I think the tape needs to be re-lubricated. Once document I found made a cavalier reference to using a silicone based libricant (which is what made me think of astroglide :-) but it didn't give any details. silicone = organosilicon polymer used in lubricants http://www.wcaslab.com/tech/silicone.htm astroglide = well, you figure it out www.astroglide.com anyone have any experience with this? it seems like something to be done with great care... -brad ps: the astroglide reference is just there for humor sake. I'm sure there is a more appropriate industrial grade lubricant used on tapes.