Arctube ML 250 BPA-NI Lining for Aluminium Bottles and Food Aerosols
Arctube ML 250 is a BPA non-intent internal lining for impact-extruded aluminium bottles and monobloc food aerosols. The film has to follow the metal through heavy necking without cracking and, for beverages, stay neutral in taste and aroma.
Grade Arctube ML 250 | Range Tube, Aerosol and Aluminium Bottle Coatings | Technology Solvent-borne thermosetting lining, BPA non-intent
Technical Data Sheet
Arctube ML 250
Issue 2026.09
1. Product description
A BPA non-intent internal lining for impact-extruded aluminium bottles and for monobloc food aerosols, covering water, still and carbonated beverages, spirits, edible oils and aerosol cream. The film has to follow the metal through heavy necking into a narrow threaded or crown neck without cracking, and for beverages it has to be neutral in taste and aroma. It is formulated without bisphenol A or BPA-based epoxy resins for markets that apply the EU ban, but food-contact compliance is established on the finished container by migration testing and, for beverages, sensory testing. Used on a fill it has not been tested against, such as a strongly acidic juice or a high-strength spirit, it can blister or affect flavour.
2. Features
- Formulated without bisphenol A or BPA-based epoxy resins as raw materials
- Follows heavy necking into narrow threaded or crown finishes
- Porosity read after necking
- Food-contact compliance is established on the finished container by migration testing and, for beverages, sensory testing
3. Recommended uses
Internal lining of aluminium bottles and monobloc food aerosols for water, still and carbonated beverages, spirits, edible oils and aerosol cream. Each fill is tested before use: an untested fill such as a strongly acidic juice or a high-strength spirit can blister the film or affect flavour.
Substrates. Impact-extruded aluminium bottles with screw, roll-on or crown finishes, and monobloc aluminium cans for food aerosols.
4. Typical properties
| Property | Typical value | Method |
|---|---|---|
| Technology | Solvent-borne thermosetting lining, BPA non-intent | Formulation |
| Carrier | Organic solvent blend | Not applicable |
| Non-volatile content | 25 to 45 per cent by weight | ISO 3251 |
| Supply viscosity | 30 to 60 s, 4 mm flow cup at 23 degrees C, or the 3 mm cup for thinner grades | ISO 2431 |
| Dry film weight | 5 to 12 g/m2, reported as mg per container for the container size | Gravimetric, container weighed before and after stripping the cured film, supplier protocol |
| Cure state | 50 to more than 100 methyl ethyl ketone double rubs without breakthrough, according to grade | ASTM D5402 |
| Adhesion | Cross-cut classification 0 to 1 on flat aluminium panels; no coating removal by tape on the formed container | ISO 2409 on panels; customer or supplier protocol on containers |
| Porosity after necking | Current reading within the acceptance limit agreed for the container size at qualification, read on necked containers | Current conduction with an electrolyte fill (enamel rater), customer or industry protocol |
| Taste and aroma, beverage fills | No taint in sensory testing of the finished container with the actual fill | Customer or supplier protocol |
| Pack test with the actual fill | No blistering, delamination, corrosion or change in the product after storage, commonly at 40 to 50 degrees C for 1 to 6 months | Customer protocol |
Typical values, not a specification. Values for each batch are given on its Certificate of Analysis.
5. Application
| Parameter | Guidance |
|---|---|
| Application method | Lance spray into the rotating container |
| Surface preparation | Container washed or degreased to remove the extrusion lubricant before lining |
| Viscosity adjustment | Adjusted at the line within 30 to 60 s (ISO 2431 flow cup, 23 degrees C) to suit the spray equipment, using only the thinner Arctic specifies for the grade |
| Dry film weight | 5 to 12 g/m2, quoted as mg per container |
| Cure schedule | Typically 6 to 12 min at about 200 to 240 degrees C metal temperature before basecoating, set against the customer's oven with a traced temperature logger |
| Next step | External basecoat such as Arctube BC 160, dry offset print and overvarnish; necking follows the last bake |
| Qualification and food use | Porosity after necking, pack, sensory and migration testing, and resistance to the pasteurisation cycle where the filler pasteurises, precede commercial use; declarations are issued on request against the product supplied, and a trial on the customer's line is required |
Process. Sprayed by lance into the rotating container, typically 5 to 12 g/m2 dry film, quoted as mg per container, and cured typically 6 to 12 min at about 200 to 240 degrees C metal temperature before basecoating, set against the customer’s oven. Porosity is read after necking, pack, sensory and migration testing precede commercial use, and a trial on the customer’s line is required.
6. Storage and handling
Store in the original, tightly closed containers in a cool, dry, covered area, protected from frost, direct sunlight and heat, and keep containers closed between uses to limit solvent loss. 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.