Contract sealing and tamper-evident finishing
SachetsCo provides contract induction sealing, tamper-band application and cap-torque checks for compatible bottles, jars and tubs in Sydney. Projects can combine filling, capping, foil sealing, shrink bands, labelling, coding and secondary packing, with container, closure, liner and product compatibility reviewed before production.
This is an outsourced packaging service for business customers—not induction-sealing machinery sales, hire or repair. We can review both integrated filling projects and suitable already-filled stock requiring authorised finishing or rework.
Services that can be combined
| Step | Purpose | Compatibility or control point |
|---|---|---|
| Cap application | Apply a compatible closure before or as part of the sealing process. | Bottle or jar neck, cap thread, liner, product contact and agreed application method. |
| Induction sealing | Bond a compatible foil liner to the container finish using an agreed process. | Container material, finish, closure, liner construction, product and process window. |
| Tamper-evident banding | Apply a compatible heat-shrink band around the cap and neck area. | Band dimensions, component heat sensitivity, placement and finished appearance. |
| Cap-torque checks | Apply or assess closure torque against the agreed project method. | Closure supplier guidance, component condition, timing and documented acceptance range. |
| Coding and labelling | Apply customer-authorised labels and agreed lot or date information. | Approved source data, code location, adhesion, legibility and reconciliation. |
Compatibility is assessed for the exact pack
Induction-seal performance depends on the product, container material and finish, cap, liner, application torque, induction settings and time between capping and sealing. Tamper bands also depend on the exact component dimensions and heat response.
For that reason, “leak-proof”, “airtight”, “hermetic” or guaranteed shelf-life outcomes are not implied. The accepted requirement and verification method are documented for the reviewed container-and-closure system.
Suitable project pathways
Integrated filling and finishing
Selected powders, liquids, gels, creams or pastes filled into compatible bottles, jars or tubs, then capped, sealed, coded, labelled and packed.
Already-filled stock
Suitable customer-owned stock can be reviewed for authorised induction sealing, tamper-band application, coding, relabelling or other finishing work.
Pilot or repeat programs
Trial quantities, first commercial runs, multi-SKU work and scheduled repeat production can be privately scoped.
What to send for review
- Product form, specification and current batch status.
- Container, cap and induction-liner supplier specifications.
- Photographs and representative samples of the exact components and filled pack.
- Required induction seal, band, cap-torque, coding, label and carton scope.
- Quantity by SKU, current stock condition and repeat demand.
- Any customer acceptance method, transport conditions or leak-test requirement.
- Deadline, delivery location and whether components are customer supplied.
Induction sealing and tamper-band FAQ
Which containers can be induction sealed?
Compatible bottles, jars and tubs can be reviewed. Suitability depends on the exact container material and finish, cap, induction liner, product and application conditions.
Can SachetsCo seal already-filled stock?
Yes, suitable stock can be assessed for authorised finishing or rework. We first review the existing fill, component condition, liner system, quantity and required checks.
Do you apply heat-shrink tamper bands?
We can review compatible tamper-band application for bottles, jars and tubs. Band dimensions, component heat response and finished placement must be confirmed.
How is cap torque checked?
The method and acceptance range are agreed from the exact closure system and applicable supplier or customer requirements. Timing and component condition can affect the result.
Can filling, capping, sealing, coding and labelling be combined?
Yes, where the product, components and complete line pathway are suitable. We can privately scope an integrated project or selected finishing steps.
What is required for a quote or trial?
Send the product, exact container-cap-liner system, quantities, current stock status, required finishing steps, acceptance checks, coding and timing.
Related filling and finishing services
Bottle, tube and cosmetic filling · Pouch, jar and tub packing · Quality and project records · Contract manufacturing
Request a sealing or finishing review
Send the exact container, closure, liner, product, quantity and required checks. Representative components may be needed before a written production scope.
If the project is outside the suitable SachetsCo pathway, we can—with your consent—offer an optional no-charge referral through FactoryTender.