Southeast Asia: custom 30 ml and 50 ml PETG jar on a private tool
An exclusive jar design that did not exist in any mold library. The project was a tooling programme before it was a production one.
A 45-day tooling programme, delivered in June 2026
When a brand wants a jar shape that no supplier stocks, the schedule is set by the tool, not by the molding line. This project was scoped around that reality from the first quotation.
Material: PETG, for thick-wall clarity in a premium jar format with an airless assembly.
Two sizes were tooled, 30 ml and 50 ml. The mold programme ran 45 days from drawing approval to first samples, and 8,000 pieces were delivered in June 2026.
The design is exclusive: the tooling was made for this client, is marked for them, and is not resold to another customer.
Project record
Structured fields rather than a narrative, so this page can be read the same way by a buyer and by a search engine.
Southeast Asian brand — custom PETG airless jar
How a private mold programme runs
This is the stage sequence for a new tool. It is longer than a stock-mold project, and each stage below is a point where the buyer has something to approve.
What a private tool means for your design
A private mold is the part of a packaging project most often misunderstood, in both directions — buyers sometimes assume it buys more protection than it does, and sometimes assume it is not worth paying for at all.
| Question | What applies |
|---|---|
| Is the design exclusive? | Yes, in the sense that matters: the tooling was made for this client, is marked for them, and is not resold to another customer. |
| Who owns the tool? | Tooling terms are set out in the quotation for each programme. What is not offered is free tooling or lifetime mold ownership as a standing promise — those are commercial decisions taken per project, not a blanket offer. |
| Can the tool be moved? | A tool is a physical asset and its location is a commercial question, not a technical one. Raise it before the tool is cut if it matters to your business. |
| Does a private tool remove the sampling stage? | No, it adds one. A new tool always produces a first sample for approval before production; the decision is what you do with the sample, not whether you get one. |
| Is a private tool always the right answer? | Rarely. Most projects are built on the closest existing mold plus custom colour, closure and decoration. A private tool buys a specific shape and exclusivity — if you need neither, search the library first. |
- ▸We do not publish the client’s design or artwork. The tool is theirs, and the drawing is theirs.
- ▸We do not quote a tooling price without the drawing. Cavity count, steel choice, surface finish and slide requirements all move the cost, so a number given without a drawing would be fiction.
- ▸We do not offer free tooling or lifetime mold ownership as a standard promise. Per-project tooling terms are set out in the quotation, and large programmes can amortise tooling across the order if that is the commercial structure the buyer wants.
Products this project drew on
Real Shijin items in the same material and format family. The jar on this project is a client tool and is not published; these are the stock items a similar programme would start from.
SJT0497 — 150 ml PET cream jar
A cream jar supplied with a screw lid and inner liner — the stock jar format a jar programme is usually benchmarked against.
Read more →SJE-1667-15 — 15 ml PETG bottle
A thick-wall PETG item in the same material family, showing the clarity PETG gives at small sizes.
Read more →SJE1714-50 — 50 ml mini cylindrical bottle
A 50 ml small-format bottle — the same size band as one of the two tooled jars, in a different material route.
Read more →Material, engineering and further reading
A private-tool jar programme turns on design for manufacture, tooling sequence and the material’s limits. These pages cover each in depth.
Questions this project raises
How long does a new mold take?+
On this programme the tooling ran 45 days from drawing approval to first samples. That is a representative figure for a two-cavity jar tool rather than a universal one — cavity count, steel choice, surface finish and any slide requirements all move it, which is why it is quoted against a drawing.
Can I see the jar that was made?+
No. The tool and the design belong to the client, and the drawing is not ours to publish. What we can show a prospective buyer is the sequence: the recorded stock-mold search, the tool programme, the first-article approval, the inspection gates and the test reports that travel with the shipment.
Why PETG rather than PET for a jar?+
Thick-wall clarity. PETG can be run in heavier walls without the haze that develops in standard PET at the same thickness, which is what produces the glass-like look a premium jar needs. The trade-off is a lower heat ceiling — PETG is normally worked around 70–75 °C — so a hot-filled cream would need a different material.
What is an airless jar, and why specify one?+
An airless jar dispenses with a piston assembly rather than by the user dipping a finger into the product. It suits formulas that are sensitive to air and contamination, and it allows a measured dose. The cost is a more complex assembly and a closure that has to be designed together with the jar rather than chosen off a list.
Is tooling quoted separately from the bottle price?+
Yes. Tooling is quoted and invoiced separately from the unit price so a buyer can see exactly what the tool costs and what it buys. Where a programme is large enough, amortising tooling across the order is a conversation worth having.
Will you resell my mold to another customer?+
No. Custom tooling is made for the project and marked with the client’s own identification. That is also why we ask for an NDA before receiving technical drawings where a brand requires it — it is standard practice for us, not an unusual request.
What is the minimum order on a private-tool project?+
It is set by the tooling economics rather than by a published floor. On a stock-mold project orders start at 5,000 pcs in white, black or natural, or 10,000 pcs for custom colours; a new tool has to carry its own cost, so the first order is larger and is quoted per project.
What if I need two sizes in one range?+
That is what this project was. Two sizes were tooled, 30 ml and 50 ml, and the proportions were designed as a set so the two jars read as one family. Tooling two sizes costs more than one — the design work is where that cost is controlled or wasted.
Discuss your packaging project
Send a drawing, a reference jar or the dimensions you have in mind. Engineering replies within one business day.
Part of Custom Packaging Projects for Global Brands | Shijin
Keep reading
Material, engineering and buying pages that this one sits next to.