Kindly suggest any method or solvent to re suspend silver from old dried out silver paint/paste. It's a 25 years old "Dotite©" D-550 bottle. Strangely there is no expiry date mentioned on the bottle.
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1$\begingroup$ Generally speaking, with difficulty. After 25 years perhaps it is time to get a new bottle? $\endgroup$– Jon CusterCommented Jul 15, 2017 at 14:12
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$\begingroup$ A current advert (2spi.com/item/05003-ab) displays the jar labelled with expiry date. $\endgroup$– ButtonwoodCommented Jul 15, 2017 at 16:31
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1 Answer
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According to SPI Supplies:
If the Dotite Silver Paint dries out, unlike some other silver paints, it can be re-suspended with the addition of SPI #05004 Silver Paint Thinner followed by an ultrasonic bath treatment.
Generally, ketones are used as diluents, also for conductive paints (acetone, methyl ethyl ketone (MEK), methyl isobutyl ketone (MIBK)).
answered Jul 15, 2017 at 5:26