HarryHydro wrote:
> Hi Folks:
> I just read a funny post telling someone to twist their drive in
> their hands to unstick the heads from the platters. It had to be done
> is a certain direction. Then someone said if your south of the equator,
> you need to flick it in the other direction! Haha! Anyway..
> I've had three 2.5" hard drives, oldies, just recently seize. I
> pulled them apart, and the platters look a little scuffed, but the
> heads do seem to stick to the surface. Trichlor seemed to clean the
> surface of the scuff marks, leaving me to think there is some kind of
> lubricant/wax or such on the platters. Well, I think I washed it off,
> because the heads are dragging real heavy now! I can barely spin the
> platters by hand! It feels like I'm going to tear the heads off! The
> heads lift off the platters easy, they don't 'stick' but they do drag
> like rubber on asphault. Some post said there is no coating. These are
> two 60mb and two 20mb 2.5" drives. They're crap anyway, but was
> wondering what's causing this. I think I'm going to replace them with
> flash-cards.
> Harry
>

There are a couple of lubricants discussed here.

http://www.eurekalert.org/pub_releas...s-hd081604.php

So various coatings are used.

And Trike is a carcinogen. I had my bottle of Trike, taken away
from me years ago, by the Health and Safety committee. Find a
safe way to dispose of it (not down the sink).

http://en.wikipedia.org/wiki/Trichloroethylene

Paul