3M Anti-Tarnish Paper roll 5mx2.5cm Gold & Silver Tarnish

3M Anti-Tarnish paper roll – 5m x 2.cm is designed to inhibit tarnish or discoloration of metals in transit or storage. It works on silver, copper, tin, gold, nickel, pewter and brass by absorbing or “trapping” atmospheric pollutants – notably hydrogen sulfide and other chemical compounds.

3M Anti-Tarnish paper roll –  protect on a ratio of one 1″ x 1″ tab up to 30 cubic inches of container void.
When exposed to surrounding airspace, the activated sites immediately go to work scavenging corrosive agents such as hydrogen sulfide, sulfur dioxide, nitrogen dioxide (a secondary pollutant of photochemical smog, also produced in combustion processes), ozone, hydrogen chloride and chlorine and organic carboxylic acid.