PR
Rosin Modified Phenolic Resin
REACH-aligned
PR-140
Rosin-modified phenolic for offset / letterpress inks and hard-drying varnishes
PR-140 is a rosin-modified phenolic resin made by modifying gum rosin with phenols. It is used in over-print varnishes, lithographic and letterpress inks, hard-drying varnishes, primers and paints.
Technical specifications
Spec sheet
| Property | Value |
|---|---|
| Melting Point | 140–160 |
| Acid Value | 25 |
| Viscosity | 60–100 sec (FCB4 @30°C, 50% in Toluene) |
| Heptane Value | 20 |
Applications
Recommended for
- Over-print varnishes
- Lithographic inks
- Letterpress inks
- Hard-drying varnishes, primers and paints
Key features
Grade notes
- Imparts gloss and adhesion
- Strong oil resistance
- Compatible with rosin resins, tall oil alkyds and vegetable oils
End uses
Common applications
Printing Inks
Discuss PR-140 for your formulation.
Send the application and target specification. We can provide a sample and connect you with the technical team.