Arcveil SF 110 Ultraviolet-Fluorescent Security Coating
A coating that is invisible on the printed sheet in daylight and fluoresces under a 365 nm lamp, supplied as a plain fluorescent grade or with a taggant for reader-based verification. The response is read against a defined excitation source and detector, so substrate fluorescence and the emission colour form part of the specification.
Grade Arcveil SF 110 | Range Scratch-Off, Security and Coding Coatings | Technology Ultraviolet-fluorescent coating, plain or with taggant, with the carrier agreed at enquiry for the press process
Technical Data Sheet
Arcveil SF 110
Issue 2026.09
1. Product description
A coating that is invisible on the printed sheet in daylight and fluoresces under a 365 nm lamp, used for covert marks, authentication panels and taggant coding. It is supplied as a plain fluorescent grade or with a taggant for reader-based verification. What distinguishes it in this range is that the response is read against a defined excitation source and detector rather than judged by eye, so substrate fluorescence and the chosen emission colour are both part of the specification.
2. Features
- Not visible on the printed sheet in daylight; fluoresces under 365 nm excitation
- Plain fluorescent grade, or taggant grade for reader-based verification
- Emission colour selected against the background fluorescence of the substrate
- Accepted against a signed reference sheet read under the customer's own lamp or reader
- Spot or full-sheet application by flexo, gravure or screen
3. Recommended uses
Covert marks, authentication panels and taggant coding on pharmaceutical and consumer-goods cartons and labels. The coating is an authentication aid read by lamp or detector and carries no security rating.
Substrates. Coated and uncoated paper and board, label papers and corona-treated filmic facestock. Substrates carrying optical brightening agents absorb in the same 365 nm band and emit in the blue, so they raise the background against a blue-emitting mark, and the substrate is assessed and the emission colour selected before the grade is confirmed.
4. Typical properties
| Property | Typical value | Method |
|---|---|---|
| Technology | Ultraviolet-fluorescent coating, plain or with taggant, with the carrier agreed at enquiry for the press process | Formulation |
| Appearance in daylight | Not visible on the printed sheet | Visual, daylight |
| Fluorescence response | Fluoresces under 365 nm excitation in the emission colour agreed at enquiry | 365 nm lamp or customer reader, against the signed reference sheet |
| Taggant response | Taggant grade only; read by the customer's detector | Customer or supplier protocol |
| Supply viscosity, water-based flexo and gravure grades | 30 to 40 s, 4 mm flow cup at 23 degrees C | ISO 2431 |
| Supply viscosity, pigmented screen grades | 300 to 2,500 mPa.s at 25 degrees C, cone and plate | ISO 2884-1 |
| pH, water-based grades | 7.5 to 9.5 | ASTM E70 |
| Light fastness of the fluorescent response | Blue wool 2 to 4, according to grade, assessed as loss of fluorescence under 365 nm against blue wool references exposed alongside | ISO 12040 exposure, filtered xenon arc; fluorescence assessed under 365 nm, in-house |
| Adhesion | Cross-cut classification 0 to 1 on filmic facestock held flat on a rigid backing; no pick on tape removal on paper and board | ISO 2409 on filmic facestock; tape pick and rub, in-house, on paper and board |
| Substrate background | Background fluorescence of the substrate, including optical brightening agents, assessed before the grade is confirmed | 365 nm lamp, in-house |
Typical values, not a specification. Values for each batch are given on its Certificate of Analysis.
5. Application
| Parameter | Guidance |
|---|---|
| Method | Flexo, gravure or screen, applied as a spot or a full-sheet coating |
| Substrate assessment | Substrate checked under 365 nm for optical brightening agents; where the blue background is high, an emission colour away from the blue is selected |
| Surface preparation | Filmic facestock corona treated; coated and uncoated paper and board and label papers used as supplied |
| Dilution | Supplied ready for use; adjust only with the diluent stated for the grade supplied, to the press viscosity set on the trial |
| Applied coat weight | 1.0 to 4.0 g/m2 dry, giving a dry film thickness of 1 to 4 micrometres (ISO 2808) |
| Drying or cure | Drying route stated for the grade supplied, with conditions set on the press trial |
| Verification | By 365 nm lamp or the customer's own reader, against a signed reference sheet from the trial; light exposure in distribution stated at enquiry |
Process. Flexo, gravure or screen, applied as a spot or a full-sheet coating. Verification is by 365 nm lamp or by the customer’s own reader, using a signed reference sheet from the trial as the acceptance standard.
6. Storage and handling
Store in the original closed container at moderate temperature and out of direct light, with water-based grades protected from frost; shelf life is stated on the label and Certificate of Analysis. Handling guidance is given in the Safety Data Sheet, issued on request. Handle and use the product in line with its Safety Data Sheet.
7. Safety and regulatory information
Read the Safety Data Sheet before use. Safety Data Sheets and regulatory declarations are issued by our technical centre against the product and batch supplied, so they are sent on request rather than published. Request a Safety Data Sheet or declaration.
This Technical Data Sheet is published for on-screen reference. The information is given in good faith from laboratory and application experience and describes typical values; it is not a specification and does not replace a trial on your own substrate and line. Arctic Materials may revise this sheet without notice. Issue 2026.09.
Technical Data Sheets on this site are for on-screen viewing. For a controlled copy, write to tech@arcticmaterials.com.
Other grades in this range
Need a Safety Data Sheet, a regulatory declaration or a grade specified to your line? Contact our technical centre.