This site was updated February 2013 From my own research and
study I have found there are 4 primary different mildew spores (
we Brits call it mildew, other conservators refer to it as
"mould" or the US spelling "mold") that cause foxing and each
reacts in a different way. The first formula I invented 17 years
ago only worked on 1 spore, I tried to make a universal formula
but each spore seemed to react differently and over 5 years I
created 4 different formulae....one for each spore. All have one
common denominator and that is they are all attracted to one
single element in chemical wood pulp. This isn't a marketable
product as it is more of an exact science. You will need to be
able to identify each different spore, some papers will have 2
or even 3 which means each spore will need to be treated
separately......but first you will need to be able to identify
many different types of paper fibres manufactured over the
centuries as you will also need to identify and re-make
different types and strengths of the