Arcresist HT
A heat-resistant coating for print that passes under a sealing jaw, through a shrink tunnel or over a hot roller. It gives the jaw a harder, more thermally stable surface so the ink does not soften, pick off or transfer to hot metal.
Grade Arcresist HT | Range Speciality Coatings for Packaging | Technology Clear heat-resistant overprint coating on a thermally stable binder, single-component or cross-linking, solvent-borne or water-based
Technical Data Sheet
Arcresist HT
Issue 2026.09
1. Product description
A heat-resistant coating for print that passes under a sealing jaw, through a shrink tunnel or over a hot roller. It gives the jaw a harder, more thermally stable surface so the ink does not soften, pick off or transfer to hot metal.
2. Features
- Stops ink softening, pick-off and transfer to hot tooling
- Keeps sealing jaws clean through a long run
- Matched to the ink system, the substrate and the dwell and pressure at the jaw
- Fully dried, and on cross-linking grades fully cured, before the web meets heat
3. Recommended uses
Printed flow-wrap, sachet, pouch and sleeve work that runs under heat-seal jaws, through shrink tunnels or over hot rollers.
4. Typical properties
| Property | Typical value | Method |
|---|---|---|
| Technology | Clear heat-resistant overprint coating on a thermally stable binder, single-component or cross-linking, solvent-borne or water-based | Formulation |
| Appearance | Clear liquid, drying to a clear, hard film | visual |
| Carrier | Organic solvent blend or water, stated for the grade supplied and matched to the ink system | formulation |
| Non-volatile content | 20 to 40 per cent by weight | ISO 3251 |
| Supply viscosity, ISO flow cup 4 mm at 23 degrees Celsius | 30 to 50 s as supplied | ISO 2431 |
| Heat resistance of the printed face | No softening, pick-off or transfer to the jaw at the converter's sealing temperature, dwell and pressure; tested at or just above the production jaw temperature, typically 120 to 160 degrees Celsius on BOPP and PE structures and up to 200 degrees Celsius on PET and foil structures | customer or supplier protocol, printed face against a hot jaw on a laboratory heat sealer |
| Retained solvent | Measured on the finished reel against a limit agreed with the converter | customer or supplier protocol, headspace gas chromatography |
| Rub resistance | Stroke count and load agreed per pack; tested on the intended substrate after drying and conditioning | ASTM D5264 |
| Adhesion over ink on film | No coating or ink removed in the tape test on the printed film | ASTM F2252 |
Typical values, not a specification. Values for each batch are given on its Certificate of Analysis.
5. Application
| Parameter | Guidance |
|---|---|
| Application method | Flexo or gravure coating station, inline or offline |
| Surface preparation | Ink fully dried before coating. On polyolefin film, check wetting tension on the reel to be coated with the test solutions of ASTM D2578. Trial over the printed areas, not on the unprinted edge of the web |
| Dilution | Supplied at or near application strength; reduce only with the diluent specified by Arctic for the grade, check flow time to ISO 2431 at fixed intervals recorded against temperature, and confirm any correction against a measured coat weight |
| Applied dry coat weight | 1.0 to 2.5 g/m2 |
| Drying and cure | Dryer air typically 50 to 80 degrees Celsius, limited by the heat tolerance of the substrate, set so the web leaves dry, free of retained solvent and cool at the rewind; water-based grades need more drying energy and dwell than solvent-borne grades at the same coat weight. Cross-linking grades are allowed their full cure before the web meets heat |
| Next step | Confirm on the packing line at the actual jaw temperature, dwell and pressure before release; on shrink sleeves, confirm that the coating follows the film through the shrink tunnel at the design shrink ratio without cracking, whitening or loss of adhesion |
6. Storage and handling
Store in the original containers, kept closed, in a cool, dry, covered area away from direct sunlight and sources of heat, within the temperature range given on the label, and protect water-based grades from frost. Shelf life is stated on the label and on the Certificate of Analysis. 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.