Poster putty may be bit difficult to remove in one piece if it has been on the wall for a while. Roll the putty from one end to another to remove it, or use a fresh piece of putty to help remove stubborn bits. Clean stains with a citrus solvent.
Removing the Putty
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Pick at one corner of the putty to lift it from the wall.
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Roll the lifted end of the putty over the remaining putty to help lift the entire mass from the wall.
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Dab stubborn, tiny pieces of putty with another piece of putty to lift if off the wall.
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Soften a hardened chunk of putty that cannot be peeled away easily by dabbing one corner with a cotton swab coated with a citrus solvent. Lift the softened corner and roll the putty into a ball.
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Remove any marks left behind by the putty by dabbing it with a drop or two of citrus solvent applied to the tip of a cotton swab.