I merely observe that the assertion does not appear to be supported by the product's MSDS. That could be due to an MSDS failure, or any number of things. The MSDS I have (from Ramshot's website, today) is dated 2007. Perhaps Thales has begun adding de-coppering agent(s) very recently(?). Or, perhaps they're claiming de-coppering capability from a slightly non-'traditional' de-coppering ingredient(?).