This modifier has the same uses as very popular Graphic Chemical Easy Wipe.
It is a tack reducer for etching and block printing oil based inks.
It is useful in intaglio for:
A better ink distibution in grooves even with a very stiff ink.
An easier wiping off that allows to print fine details.
It is useful in blockprinting for:
Avoiding paper sticks to the block.
Facilitating printing by hand.