Klix 88
is (was? - don't know if it's still available) a powerful oil and wax type
of solvent but not very quick to evaporate giving one plenty of time to blot
it up before it re-deposited the gunk it had dissolved all over the area you
were trying to clean.

Dan,

 

The DuPont S-22 solvent had the same characteristics.

 

<<<<

In my opinion, acetone is less desireable from this
angle because it evaporates so quickly. Yes, acetone will dissolve the bad
stuff quite readily, but when it evaporates it will leave whatever it has
dissolved behind - spread evenly over the area you're trying to clean.
>>>>

 

That's why I consumed a forest of paper towels - After thorough degreasing, the next step was performed with acetone ->Soak, swipe a bit, flip, swipe a bit, fold, swipe a bit, flip.......New sheet, repeat as before.  Note, a bit = 3-4 inches square. With great care I would have thinly and evenly spread a miniscule amount of contaminants hither and yon......plus an occasional mote or two.  Then I would begin to sand.  More cleaning would follow.  Now I remember why it took me 7 years to build.

 

Recently I was again looking at the pictures of the Legacy stub wing skin separation.  Egads, the "bonded" surface area was enormous.  I know that I have used pressurized air to split molded parts away from the mold but if that skin was properly prepared and wetted before fresh flox was used it just should not have peeled away so neatly.  Hmmmmm.......

 

I know the caveman techniques and materials we used have been improved but everything is still stuck together.

 

 

And Primitive Chemicals