Conventional mineral oil free printing varnish for the ink unit to get glossy-, matt and/or trickle down effects by the inline coating with water based coatings in offset printing machines with integrated coating unit. The effect depends on the used material, the combination of primer and coating and their film weights.
The primer should not be used on EPDM (ethylene-propylene-diene-rubber) rollers because the primer can swell the roller.