STAIN: Greyish or brownish, absorbed or built-up
CONTAINS: Oils, sometimes soils
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Apply drycleaning solvent.
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Apply POG, blot.
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Alternate steps 1 and 2 until stain is removed.
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If stain remains, apply detergent solution, blot.
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Apply ammonia solution, blot.
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Apply vinegar solution, blot.
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Rinse with water, blot until dry.
* Bleaching (or professional stripping) may be necessary.