Sep 26, 2026Buyer Guides
From Reference to Production: How Custom Bottle Projects Run
How the six-step custom bottle process runs from requirement to shipping, the eight services behind it, and what to prepare so sampling and approval move without surprises.
You have a sketch, a cost frame and a launch window, and somewhere between them sits a custom glass bottle. What turns that sketch into a production order is not inspiration; it is a process.
If that sounds like the project on your whiteboard, here is how the six-step process at SEALAND Packaging runs, and what happens inside each step.
Every custom project we delayed traced back to the same gap: nobody owned the step between sample and production.
Where Custom Projects Usually Stall, and What That Costs
Delays rarely come from the factory floor; they build up in the gaps between steps. A sample is approved verbally, so the production spec is never written down. A cost is discussed before the mould scope is clear, so the quote gets revised twice. Because the steps are not owned, each handoff quietly adds a week.
The common thread is scope that moves after sampling. When the cap, the finish or the box changes after approval, the project pays for it in rework, and that is the real cost of a loose process.
From Requirement to Shipping: Six Steps That Keep the Project on Record
The process is published as six steps, so you can check your project against each one and know who owns what at any moment.
Step 1: Requirement, the Input That Drives Everything After
It begins with your requirement, and this is where you hand over capacity, bottle type, decoration idea, quantity and launch window. Sketches, sample references or a bottle whose weight you like all sharpen the brief.
Step 2: Sample
A prototype is made and sent for confirmation. This is where 3D models give way to real samples, so weight, glass and finish get judged in the hand instead of on a screen.
Step 3: Approval, the Step That Locks the Details
Details are confirmed and the quote is fixed: capacity, decoration, components and packaging, all recorded in writing. Treat the approved specification as the single reference that every later decision points back to.
Step 4: Production, Which Follows the Approved Specification
Mass production runs against the approved specification, with inspection built into the line rather than stacked at the end, so issues surface while they are still small.
Step 5: Inspection, So Issues Surface Before Packing
Each bottle programme is tested to the same standard: a 100% leak test, an air pressure test and a drop test. This is also where the range-wide rule shows up, with strict inspection at every stage from glass forming to packing.
Step 6: Shipping, the Step That Delivers Worldwide
Finished bottles are packed for export and shipped worldwide, so the last step is protective packing designed for glass in transit; that is what safe delivery worldwide means in practice.
These Eight Services Sit Behind the Six Steps
Those six steps sit on an eight-service line, and this is what makes full customization possible from 2,000 pcs: design and engineering, mould development, sample and prototyping, surface decoration, caps and pumps, packaging boxes, mass production and protective packing.
For a complete-set project this means bottle, cap and pump, decoration and gift box are handled as one scope, so approvals stay aligned across all of them. A new mould is quoted by evaluation, so the engineering conversation starts early, right after the requirement and before sampling.
What to Prepare, So Step 1 Starts With Numbers
Three inputs shorten every later step: your target capacity within the 10ml to 100ml range, the decoration effect you have in mind, and the quantity route you are planning, whether in-stock from 500 pcs, decoration from 1,000 pcs or full customization from 2,000 pcs. Bring those three answers and the first reply is already a project plan, so the conversation starts with numbers instead of questionnaires.
Now, Start the Project
Send your requirement, whether a sketch, a note about the bottle you want or three lines about the market, and the project starts at step one, so the first reply you receive is already a plan. You will hear back within 24 hours on business days, and when you are ready to move from idea to production, message us at shary@sealandperfumepackaging.com or on WhatsApp at +86 181 1854 1726 and we will take it from there.
