The following product listing is an example of the inks which have been or are presently being made and sold to facilities producing documents requiring overt and covert security features.
Water based intaglio implies flat die stamping.
Varnished based flat dir stamping inks are also available, but security based inks for this process are not yet popular. However, upon special request, varnished based inks can most likely be formulated in a relatively short time with some lab work. Offset implies both dry offset and conventional lithography. Water sensitive inks which bleed color when wetted are only made for dry offset. 500mg presswet samples of ink that run well are often required to provide a similar or better match.