Today I put a piece of coverite on some scrap balsa and then put some stikit on it. After letting it dry I tried some different chemicals to see what would remove the adhesive with out damaging the coverite. I wasn’t worried about paint damage since the patch needs to be painted anyway.
Mineral Spirits , Denatured Alcohol, Turpentine, and Goo Gone didn’t remove any adhesive.
Lacquer Thinner removed the most of the adhesive but left some in the fabric weave.
Acetone and Sig Thinner both worked really well. I had forgotten that I had some Sig Thinner.
When I cleaned up the adhesive around the patch on my painted wing I did some with the Acetone and some with the Sig Thinner. They worked equally well with both removing some paint along with the adhesive.
If you need to remove some Stikit and have some Acetone on hand I wouldn’t hesitate to use it because it is a lot cheaper than Sig Thinner and might save you a trip to the hobby store which may or may not have it. Just know that if you use either one on a painted surface you will need to do some paint touch up.