Blu-Tack is a great product for attaching papers to walls and other surfaces. A putty-like, pressure-sensitive product, it's often used in offices and schools because it's effective for hanging papers without having to put pin holes in walls. When Blu-Tack ends up on the floor, however, it can get stuck on the soles of shoes, and it's not easy to get off. With a few tricks, though, you can remove Blu-Tack from your shoes so that you don't track it around.
Put the shoes in a plastic grocery bag and tie the bag up. Place the bag in the freezer, and leave it in the freezer for several hours.
Take the bag of shoes out of the freezer, open the bag and remove the shoes from the bag.
Use a scraping tool such as a putty knife, butter knife or spatula to scrape off as much of the Blu-Tack as possible. To avoid having to clean up another mess, hold the shoes over a trash can while you scrape the Blu-Tack off. Allow the shoes to return to room temperature before proceeding to the next step.
Apply mineral oil to a clean rag, and wipe the remaining Blu-Tack with the mineral oil. If your shoes have crevices or cracks that the Blu-Tack is wedged into, use a cleaning brush or an old tooth brush to reach the Blu-Tack. Carefully pour a few drops of mineral oil into the cracks before scrubbing the soles with the brush.
Spray the soles of your shoes with a de-greasing cleanser once the Blu-Tack is gone. Wipe the de-greasing cleanser off with a paper towel. This step is important because the mineral oil you used in the last step will make the soles of your shoes slippery. The de-greasing cleanser removes all traces of the slippery oil so you don't fall down the next time you wear your shoes.