• Optimised for use on the EFI® VUTEk® Roll-to-Roll GS and QS series printers
  • Developed for Mercury Vapour and LED UV Lamps
  • Fast Curing
  • Excellent Colour Gamut
  • Enhanced Scuff and Chemical Resistance
  • Supported by NUtec Digital’s Ink Delivery System (IDS) Warranty


The Amethyst A50-RTR-EF is a superior roll-to-roll UV curable ink optimised for use on the EFI® VUTEk® Roll-to-Roll GS and QS series printers. This flexible, fast curing UV ink is suitable for Mercury Vapour and LED UV lamps and designed for self-adhesive as well as flexible media.

The A50-RTR-EF performs well in a demanding, high speed printing environment, providing enhanced scuff and chemical resistance.

This formula features an excellent colour gamut for bright, vivid images.

Provided the inks are used in regular applications, using suitable substrates, the printed images will last for up to 24 months.

Print head compatibility
Seiko® {508GS 12pl & SPT510 35pl}
Packaging configurations
5L bottles
Colours and Shelf-Life
CMYKLcLmLyLk - 15 Months. White - 12 months
Shipping and Storage Information
Storage & transit temperatures: +5°C to +35°C; Store in a cool, dry area, not directly on the floor and away from direct sunlight.
Operating Specifications
Temperature: +19°C to +28°C; Relative Humidity: 30% to 80% Non-condensing; To be used in conjunction with NUtec maintenance and cleaning solutions.


Kindly note: Not all products are available in every country or region. Contact sales@nutecdigital.com for your region specific inks.

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