AQ (High Gloss, Duct, Matt & High Scuff) Our most popular coating is AQ or Aqueous (Semi Gloss) finish. We supply high gloss, duct over print varnish, matt over print varnish to printing industries. This is a high-gloss coating applied over the front of the printed piece. Aqueous anti-mold coating for offset, flexo, and roller applications with excellent mold and grease resistance and high humidity block resistance.