I trod in some Blu-tack. It is now stuck into the tread and to the rubber sole of a very expensive pair of shoes. Using the shoes with the Blu-tack still adhered to the sole is not really an option; tiny bits get stuck to the flooring tiles and to the carpet.
I have tried:
- scraping the Blu-tack of the shoe with a knife
- digging the Blue-tack out of the tread with a knife, a wooden pick, and a metal pick
- lightly sandpapering the Blu-tack
- cooling the shoes (initially in a refrigerator and then in a -18 C freezer) in the hope of hardening the Blu-tack before trying each of steps 1-3 again
I have succeeded in removing very small amounts of the stuff, but large amounts are still stuck to, and into, the rubber. Is there any reliable method for removing the Blu-tack and leaving the shoes in reasonable condition?