DigiPrime® 4431

Brand Family Overview

ProHere™ grades are waterborne polymer dispersions and emulsions specifically developed for use in metal coatings. The range encompasses both polymer resins that can serve as organic binders in a coating formulation as well as lubricants and anti-scratch additives for metal processing and in-use lubricants.

See more ProHere Additives products.


This patented flexo and gravure ready coating provides excellent adhesion of HP Indigo ElectroInks® to most films and papers. This product is suitable for food contact and is especially useful for flexible packaging applications as well as label production. When applied at the recommended coating weight, the optical properties of the substrate are minimally affected, so maintaining the original aspect of the substrate. This product possesses good stability to light and is resistant to yellowing.


Primer for digital printing

Performance Attributes

This product is used in many applications including the following:

ApplicationProperties Imparted
HP Indigo SolutionsApplicator - flexo / gravure/ roll, OEM - Indigo ws10000, OEM - Indigo ws5000, OEM - Indigo ws7000, Substrate - film, Substrate - paper

See more products recommended for HP Indigo Solutions.
Physical Properties

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

AppearanceWhite, translucent liquid
pH8.0 - 10.0
Emulsifier ChargeAmmoniated dispersion
Percent Non-Volatile27.5 - 29.0
Brookfield Viscosity (cps, mPa·s) <100
Spindle Number1

Site of Manufacture (and Product Code)

CIN (DP4431)
AUB (DP4431.E)
SNG (DP4431.S)

Application Data

DigiPrime® 4431 may be applied by flexo or gravure coating systems. EZ Cup Viscosity - #3 Cup, 8-13 sec. Recommended coat weight: 0.2 to 0.3 gsm dry.