Arcfibre CP 340 Preprint High-Holdout Scuff-Resistant Coating
A higher film build flexo preprint coating for liners that will be handled hard, with stronger holdout on absorbent recycled liner and higher dry rub resistance than CP 310. It needs more drying capacity than CP 310, and its heavier film is more exposed to hot plate contact at the double backer.
Grade Arcfibre CP 340 | Range Paper, Board and Corrugated Coatings | Technology Water-based acrylic dispersion flexo coating, higher film build
Technical Data Sheet
Arcfibre CP 340
Issue 2026.09
1. Product description
A higher film build preprint coating for liners that will be handled hard, with stronger holdout on absorbent recycled liner and higher dry rub resistance measured to ASTM D5264. It is the grade to specify where the case is scuffed in transit, where the graphic is heavily inked, or where the liner is open enough that CP 310 loses gloss into the sheet. It demands more drying capacity than CP 310, and a heavier film is more exposed to hot plate contact at the double backer, so line speed, dryer loading and hot plate temperature should be confirmed on trial.
2. Features
- Higher dry rub resistance to ASTM D5264 for cases scuffed in transit
- Holdout on open, absorbent recycled and test liner
- Suited to heavily inked graphics
- Line speed, dryer loading and hot plate temperature confirmed on trial
3. Recommended uses
Preprint coating for corrugated cases that are scuffed in transit, carry heavy ink coverage or use open recycled liner on which CP 310 loses gloss into the sheet.
Substrates. Recycled and test liner, kraft liner, white top liner, lower-grammage absorbent liners
4. Typical properties
| Property | Typical value | Method |
|---|---|---|
| Technology | Water-based acrylic dispersion flexo coating, higher film build | Formulation |
| Appearance | Milky liquid drying to a clear gloss film | Visual assessment, supplier protocol |
| Carrier | Water | By formulation |
| Non-volatile content | 36 to 46 per cent by weight | ISO 3251 |
| Flow time, 4 mm flow cup at 20 degrees C | 30 to 45 seconds | ISO 2431 |
| pH at 20 degrees C | 8.0 to 9.0 | ISO 976 |
| Gloss at 60 degrees | 20 to 45 gloss units on recycled and test liner, higher on coated white top liner | ISO 2813 |
| Dry rub resistance, Sutherland, 2 lb weight | 250 to 500 cycles without visible transfer, liner and ink dependent | ASTM D5264 |
| Behaviour at the double backer | No blocking, pick-off or loss of gloss at the customer hot plate temperature and belt pressure, confirmed on corrugator trial | Customer or supplier protocol |
Typical values, not a specification. Values for each batch are given on its Certificate of Analysis.
5. Application
| Parameter | Guidance |
|---|---|
| Application method | Wide-web flexo press at higher anilox volume |
| Surface preparation | Coat the printed face only and keep the coating off the glue side, as starch adhesive bonds to bare fibre |
| Dilution | Supplied ready for use; dilution reduces holdout, so adjust with 0 to 3 per cent water by weight |
| Applied dry coat weight | 3 to 5 g per square metre, by grammage difference to ISO 536 |
| Drying | Extended hot air and IR drying; the film must be fully dry before rewind |
| Next step | Reel combined on the corrugator at the double backer; confirm line speed, dryer loading and hot plate temperature on trial |
| Handling and safety | Refer to the Safety Data Sheet, issued by Arctic on request. |
Process. Wide-web flexo press at higher anilox volume, extended hot air and IR drying, the reel then combined on a corrugator
6. Storage and handling
Store in the original closed container at 5 to 30 degrees C, protected from frost and direct heat, and stir gently before use. Shelf life is stated on the label and 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.