DigiGuard® Plus 921

DigiGuard Plus Family Overview

DigiGuard® Plus strengtheners enhance the performance of compatible UV-curable overprint varnishes for HP Indigo digitally printed high-performance labels. These strengtheners provide improved mechanical durability with increased abrasion, scratch, chemical, water, and thermal resistance. Learn more about DigiGuard Plus »


An additive designed to improve the performance of HP-validated UV OPVs used in combination with Michelman's DigiPrime® priming solutions. It provides water and chemical resistance for high performance labels. This product can be used in combination with DigiGuard® Plus 920.

Performance Attributes

This product is used in many applications including the following:

ApplicationProperties Imparted
HP Indigo Solutionschemical resistance, water resistance, Substrate - film, Applicator - Indigo ILP station, OEM - Indigo ws6000, OEM - Indigo 8000

Physical Properties

AppearanceColorless to yellow
Percent Non-Volatile98.0% – 100.0%
Brookfield Viscosity Range15 – 25
Spindle Number1

These physical properties are typical but should not be considered specifications.

Additional Information

Description: UV OPV performance enhancer

Handling: Ensure adequate ventilation. Handle in accordance with good industrial hygiene and safety practice. Keep away from open flames, hot surfaces and sources of ignition.

Shelf Life: 12 Months

Technical Data Sheet: Click here to download a Technical Data Sheet PDF for DigiGuard® Plus 921

Site(s) of Manufacture (and Product Code):

Aubange, Belgium (DG921.E)