We recommend rubber-based inks for general letterpress printing—it’s the type of ink we use in our own print shop. Rubber-based inks dry by being absorbed into the paper. That makes them ideal for the cotton and bamboo blends of paper used in letterpress. Use the oil-based inks if you’d like a glossier ink that works well with coated papers . Oil based inks dry by oxidation or air drying. That is why they can form a skin on the top of the can after opening and why you won’t want to keep it on your press overnight. Try the acrylic if you’re looking for a glossier ink that can still stay open on the press. Acrylic inks will also harden in the can quicker than rubber-based inks so long term storage can be a factor.
It is best to mix only like inks from the same family—oil base with oil base, rubber base with rubber, and acrylic with acrylic.
Posted in: CML Oil Base Inks Category, Ink, Letterpress Inks, Mix and Store Letterpress ink, Rubber Base Inks category