Sigma Polyurethane Pad Printing Ink

UR Series

About Sigma UR Inks

Sigma UR Pad Printing Ink is specifically formulated to provide excellent mechanical durability and solvent resistance as both the direct print and in top-coat applications.

The Polyurethane ink series adheres extremely well to ABS, Acrylics, Polystyrene, Polycarbonate, SAN, PET, Rigid and flexible PVC, Polypropylene (pretreated), varnished surfaces, Nylon, Polyurethane, Powder Coated and Anodized surfaces, Glass, pretreated Polypropylene, pretreated Polyethylene, and POM’s such as Delrin with pre-treat and post bake.

As with all Sigma Ink Series the UR ink series has earned:

  • USP Class VI Medical Certification
  • REACH Compliance (EC 1907/2006)
  • RoHS Compliance (RoHS2 Directive 2011/65/EU)
  • ISO 9001:2015 Quality Management System
  • ISO 14001:2015 Environmental Management System

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Looking for a Custom Color Match?

Experience true batch-to-batch color consistency when using Sigma inks to perform custom color formulation, or when ordering pre-blended colors. Every lot of Sigma ink is carefully analyzed using a spectrophotometer to ensure color consistency without drift, allowing you to formulate a color recipe once and repeat with confidence.

Custom Color Matching can be performed according to:

  • Pantone Matching System
  • Sample color chip
  • RAL Color Standard
  • Federal Standard 595
  • L*a*b* color values

Color matches can be provided as a blend number to order pre-blended ink, or we can provide the blend recipe for you to mix the color match in-house on demand.

Buy Standard Colors

Click on a color name below for ink details and how to place your order.

SubstratesMP SeriesUR SeriesPP SeriesUV Series
Acrylic Glass (PMMA)checkcheckcheck
Anodized Aluminumcheck, MP203, MP200check
Glass, Ceramics, and Chromecheck, MP201check
Metalscheck, MP200checkcheck, MP200
PETG, PETAcheckcheck
Polyacetal POM (Delrin)check, MP200check
Polyamide (Nylon, Kevlar)check, MP200, MP206checkcheck, MP200
Polyestercheck, MP202check
Polyethylene, Pre-treatedcheck, MP202, MP206checkcheck, MP200
Polypropylene, Pre-treatedcheck, MP206checkcheckcheck, MP200
Polypropylene, Un-treatedcheck
Polyurethanecheck, MP200check
Powder Coated Surfacescheck, MP200check
PVC, Rigidcheckcheckcheck
Thermoplastic, TPE
PVC, Flexablecheckcheck
Phenoliccheck, MP203check
Textiles, Cottoncheckcheck
Textiles, Syntheticscheckcheck
Varnished Surfacescheckcheckcheck, MP200
Paper, Corrugated Boardcheckcheck
Part #Mix ratio (by weight)
UR 101 Retarder*3-10%
UR 102 Thinner**15-30%
UR 103 Fast Thinner**15-30%
UR 200 Hardener20%
UR 201 Glass Hardener20%

*Retarder amount varies according to operating requirement

**Recommended Thinner ratio dependent on application