In rearranging the storage building last week, we found about ten
yards of never-used Pacific Cloth I'd forgotten about. So I went
looking for info on the effective life of its tarnish preventing
properties. Googled and found some posts by professional
conservationists. One mentioned that s/he had contacted Wamsutta
about any tests they may have done Re: the length of effectiveness
and the company hadn't any data. A retail site quoted "40 years".
Basically on how it works, what I found is that Pacific Cloth is a
brown felted fabric made by Wamsutta that contains thousands of
small particles of silver. When a piece of silver is wrapped in
Pacific Cloth, sulphur-containing gases from the surrounding air
react with these small silver particles rather than the silver item.
According to the infomation I gathered, the other colors of
anti-tarnish cloths are made by other companies and many have a
Most fabrics stores used to carry Pacific Cloth. Unfortunately, the
only one I found that even knew what I was talking about was Hancock
Fabrics. There is a list of stores on their website. They also have
it available for online sales.