Quality is a process, not an inspection
A good bottle is designed to pass, not inspected until it does. Our QC runs from resin drying and process control through to finished-goods testing, backed by ISO 9001, CE, SGS Gold Plus and GRS certification.
Leak & pressure testing
Bottles are checked for airtightness by vacuum / inversion testing: they must hold 0.6–0.8 MPa of pressure without leaking. This catches wall thinning, weld faults and closure mismatch before your formula ever goes in.
Drop testing
For products that need it, we run a drop test: a vertical free fall from 1–1.2 m, three times, with no cracking. It’s specified on request — typical for shipping-heavy or thicker-wall applications.
Print adhesion for PE
Because PE resists ink, every PE bottle destined for silk-screen passes a flame treatment and a water-adhesion (soak) test first, so decoration won’t peel or wash off in the field.
We won’t promise premium finishes blind: hot stamping, spray, electroplating and water-transfer are tested and signed off on your actual shape before we run them.
Getting capacity right
“200ml” on the label is net content — the bottle itself must hold a little more (headspace for the pump/closure and dosing). We size overflow capacity by range:
- 50–150ml: net + 15ml
- 150–300ml: net + 20ml
- 300–450ml: net + 25ml
- 450–600ml: net + 35ml
- 600–800ml: net + 40ml
- 800–1200ml: net + 45ml
Why it matters to you
These steps are invisible on the shelf but decisive in the field: fewer leaks in transit, no peeling logos, and a fill that dispenses cleanly. That reliability is the point of buying from a maker that controls the whole line.