First time i've had to try with some severely yellowed decals from an Avia S-199 72nd scale kit.
Taped to the attic window where they've been sitting for several weeks so I can't say exactly how long it took to clear but the result is amazing.
before
after
Taped to the attic window where they've been sitting for several weeks so I can't say exactly how long it took to clear but the result is amazing.
before
after
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