>>> on the bottom CleanTarnish-1.3 and it brought it out to a darker brown so then i tried prep 4.4 and 7.7 and it did nothing the bag is second hand
CleanTarnish-1.3 is for metallic stains and is not appropriate to use as it only react with metallic stains! However any usage of CleanTarnish-1.3 has to be pH balance with Basifier-8.8.
CleanTannin-3.5 is used for browning correction from vegetable or plant derived stains and is used as the final correction. It is to be left to dry for the “redox” (reduction-oxidation) to takes place.
>>> before i started in the crevices with no light it is white and the front and back were light yellow with the bottom a light brown tinge
Any surface release soiling or contamination or stains has to be moved “off” the surface of the skin and the only possible method is by “reverse transfer” and mentioned.
Roger Koh
Leather Care System Formulator
Consultant / Practitioner / Instructor
web: www.leatherdoctor.com
forum: www.leathercleaningrestorationforum.com
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