In-Wing Kreem Slosh removal method?

[wildirishtime]

I surprisingly can't find any threads detailing exactly the process
used for removing old Kreem from 2000 vintage tanks that are already
in the wing.

The general theory is discussed here and there in various threads, but
no clear procedure is outlined - specifically the threads don't discuss
how MUCH of the Kreem actually comes OUT in the process - all of it in
liquid form (like Kreem says)? or just that which is no longer bonded
perfectly? or just part of it ? Some people say use Acetone (including
Kreem themselves) some say use MEK...

Lastly, what do you guys do after rinsing/removing the Kreem on
the 'old' tanks? Re-slosh with the Caswell epoxy? Or maybe the Hirsch
product? Or is the 'rinse' removal enough if I don't really plan to run
E10 ( I'm a non-eth kinda guy!)?

Thanks!

[egp8111]

I flushed out my mid 90's Kreemed tanks with acetone, poured in about a gallon at a time and shook and rotated the wing everyway I could. At first the acetone drained out cream colored after about three or four times it was pretty clear. I resloshed with the Hersch product sold by ACS. Almost 100 hrs. now so far so good. A general PITA but doable. Enjoy

EG

[wildirishtime]

right, but what did they LOOK like inside when you were done? raw gold colored raw fiberglass? or could you still see traces of the Kreem?

[egp8111]

The tanks still showed some cream color in the weave looking in with a light. When the acetone came out clear I determined all the Kreem that was coming out by that method was out. I suppose you could get more aggressive about what you pour into fiberglass tanks but I wasnt willing to go there so I called it good. I think the big concern is how well the new material you use to re-slosh the tanks will adhere. I'm sure there are a lot of opinions and ideas out there. Like they say your results may vary.

EG

[wildirishtime]

Thanks for the clarification. How's the Hersch product holding up for you now, and are you running E10 over it?

[egp8111]

I'm using local mogas. I regularly check it for alcohol some times it shows none sometimes up to 5% same station, go figure. One of the reasons I chose Hersch product was it is supposedly alcohol proof It's been about 7 months and 100 hrs now since I sloshed the tanks so far no problems