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[Casabar] A registered trademark for a silver cleaning solution. Instant-Dip® contains thiourea in a sulfuric acid-based solution. It was developed in 1946 for use in museums as a quick, non-abrasive cleaner. Instant-Dip® removes black tarnish from silver pieces but will etch the surface of other materials such as steel, aluminum, zinc, marble, pearls, paint, and lacquer.

Synonyms and Related Terms

silver dip cleaner; InstantDip; Instant Dip

Hazards and Safety

Usually corrosive. Skin contact will cause burns. Thiourea is carcinogenic.

Additional Information

InstantDip: Website

Sources Checked for Data in Record

  • Product Information Comment: From product label - 1998