In a message dated 5/14/2010 7:12:24 P.M. Eastern Daylight Time,
thewestyman@GMAIL.COM writes:

am  trying to find a way to get the radiator soaked into something that
would lift  the slime from the inside of it, so I can just blast it out with
water and  compressed air.  I have a copper radiator and an aluminium one.
They are both loaded with slime.
I know, I can buy a new one.   That's not the question now.  There are many
of us on the list who would  like to know this.  And maybe it is a good
practice to rinse it  sometimes, I guess.  It can be done while still in the
car.  Then we  would not have to replace it.
I think of something acid or alkali  kind.  Maybe there is one that is
already being used long time and I just  don't know of.  One maybe for aluminum
one for  others.
Anyone?

hey guys  we have used draino on these and heater cores without any
problems.  normally we let them soak for a couple of days.  these were  done this
way because the customers couldn't afford to fix them  right.    So far none
of them that was fixed this way have had  any problems  later  mark dearing