|
|
|
Tel: +86-510-82733182 |
Tube choice looks simple until the first dented shipment or the first complaint about a plastic shoulder that sucks air back into a sensitizer formula. Aluminum and plastic tubes solve different problems; Chinese tube plants will push whichever line has open capacity.
Aluminum wins on barrier. Oxygen, light, and aroma-sensitive formulas — some ointments, high-fragrance balms, peroxide-adjacent products — often need the foil-like wall that aluminum provides. It also collapses as product is dispensed, which reduces air re-entry compared with many plastic tubes that rebound.
Premium positioning still uses brushed or coated aluminum for a cold, technical feel. If your brand story is "airless-ish protection in a squeeze pack," aluminum is usually closer than monolayer PE.
Plastic tubes dominate mass skincare, hair care, and travel sizes. They are lighter, often cheaper at volume, and take soft-touch or high-gloss finishes that aluminum coating lines may not match economically. Multi-layer plastic tubes can add EVOH or similar barrier layers when the formula needs more than monolayer PE — ask for the actual structure, not "barrier tube" as a slogan.
Plastic also survives parcel shipping with fewer cosmetic dents. Aluminum shows every knock; retailers sometimes reject cosmetically damaged aluminum even when the seal is intact.
Barrier need versus cost. Dispensing feel and suck-back. Decoration: offset print, silk screen, hot stamp, shrink sleeve. Cap and orifice options, including orifice reducers for thin formulas. Filling method at your co-packer — hot fill, cold fill, ultrasonic vs heat seal for plastic shoulders. Minimum order and print plate costs differ sharply between aluminum and plastic programs.
Sleeve diameter, wall thickness, and shoulder design affect both filling speed and consumer squeeze force. A beautiful thin aluminum tube that crumples in the first week of retail handling is still a quality failure.
Approving artwork on a white plastic sample while production will be metallic aluminum — registration and color shift surprise everyone. Skipping compatibility testing with the real formula against the tube body and the shoulder weld. Ignoring liner or lacquer systems inside aluminum tubes that can interact with actives. Ordering plastic "barrier" tubes without naming the barrier layer and thickness.
Trading companies sometimes mix tube body and cap from different plants. Require a matched system sample for cap torque and orifice drip tests. For aluminum, ask how dents are classified in AQL — cosmetic dent criteria must be written or every shipment becomes an argument.
State formula type, fill temperature, target shelf life, and whether the pack must be considered high-barrier. Ask for tube structure (monolayer, multilayer with named layers, or aluminum with internal lacquer type). Request seal method, leak test method, and decoration process capability. For recycled content claims on plastic tubes, demand verifiable PCR percentage and how it affects color.
Ask for a short production routing: extrusion or impact extrusion location, printing location, capping location. Split routes are fine; undocumented split routes are how shade lots drift.
A European skincare brand sourced white plastic tubes for a vitamin C derivative cream because the ex-works price beat aluminum by a wide margin. After eight weeks in a warm warehouse, the cream near the shoulder darkened and the consumer squeeze felt "gassy." The tube body was monolayer PE; the brand had assumed "cosmetic tube" implied barrier. Moving to a multilayer structure with a named EVOH core — still plastic, still printable — fixed the issue without jumping to aluminum. Aluminum remained the backup for a fragrance-heavy balm SKU where aroma retention mattered more than dent cosmetics.
That split decision is normal. One brand does not need one tube technology.
Before you approve mass production, require a short written confirmation from the Chinese supplier covering: production site address for this SKU, materials actually used in the pilot, critical dimensions checked, and any subprocessors for decoration or secondary operations. Keep that confirmation with the pilot samples.
When something fails later, you will need that paper trail more than a memory of a WeChat call. Build the habit on every packaging program, including this one.
Run a paired sample: same SKU brief in aluminum and in the plastic structure you were quoted. Fill with real bulk, ship a carton through your normal parcel test, and compare suck-back, dents, and print. Decide from that carton, not from a tabletop squeeze.
Based on common export packaging procurement practice; verify tube structures, lacquers, and fill compatibility with your supplier and lab partners.