Define the exposure
State whether the requirement is access, rain, splash, immersion or pressure. Include the stored contents and orientation.
Application / pouch lips & outdoor soft goods
Magnetic Closure Strips for Water-Resistant Pouches & Outdoor Bags
Plan the closure lip, fabric stack and joining process together. Define splash, immersion and pressure requirements before choosing a magnetic strip construction.
OEM components · matched A/B constructions · project-specific review
Application priorities
The magnet closes the lip. The system controls the seal.
A bike pouch, a golf bag organizer and an immersion pouch do not ask the same thing of a closure. Some need quick one-handed access under a flap. Others need a defined sealing face and a fully qualified bag construction.
Start with the opening width, fabric or film, corner details and expected exposure. Compare how the closure behaves when the pouch is loaded, folded, contaminated or closed imperfectly. The ends and seams deserve the same attention as the straight magnetic section.
For a welded construction, include the actual coated textile or membrane and production joining method. A film material label does not by itself establish a compatible weld window, drinking-water suitability or a finished-product water rating.
Start here
What the assembly needs to do
- A clear distinction between access closure and water seal.
- A lip layout and end detail that fit the bag geometry.
- A joining route compatible with the actual film or textile.
- Retention and release checked with the bag loaded.
- Finished-bag qualification for the specified exposure.
A focused selection framework
Separate the exposure levels in your brief.
Use the finished garment or bag as the test specimen. A bare magnetic strip is only one part of the result.
| Decision | What to evaluate | What to record |
|---|---|---|
| Everyday access pouch | Closing feel, loaded shape and opening action | The expected load and how the user reaches the contents. |
| Rain or splash use | Flap overlap, drainage path, seams and closure ends | Exposure direction, duration and acceptance definition. |
| Immersion requirement | Whole-pouch lip, film, corners and all joints | Depth or pressure, duration and the finished-product test method. |
| Hydration or food contact | All contacting materials, joining and cleaning | Market, contact conditions and the required evidence. |
| Repeated folding | Lip recovery, encapsulation and seam stress | Fold locations and the agreed conditioning sequence. |
Your sample request
A better brief makes a better comparison.
- Finished opening width and a lip/corner drawing.
- Film or coated fabric type and thickness.
- RF welding, heat joining, sewing or other process available.
- Target exposure, duration and acceptance condition.
- Sample size, production forecast and shipping destination.
Integration & qualification
Qualify the opening from lip to corner.
Make a full opening
Include the closure lips, corners, terminal seals and a representative section of the bag wall.
Set the joining process
Record the material, tooling and qualified production settings. Assess seam strength and damage around the magnetic elements.
Test after conditioning
Repeat the agreed leak and handling assessment after opening cycles, folding and environmental exposure.
Agree the drawing, test conditions and acceptance criteria before qualification. Review specification inputs and testing and safety considerations with your product team.
Construction shortlist
Explore the relevant strip formats.
01 / MZS-FlexTapeContinuous strip construction
MZS-FlexTape™
Continuous paired strip formats for pattern-led lengths and repeatable OEM assembly.
Explore the construction02 / MZS-HermeticWeldable lip development
MZS-Hermetic™
Plan the magnetic lip, sealing surface and welded bag construction as one system.
Explore the constructionBuyer questions
Questions before you start sampling
Is a magnetic zipper strip naturally waterproof?
No. Magnetic attraction and a waterproof sealing path are different properties. The lip, membrane, seams, folds and end details need to work together in the finished product.
Can you guarantee IPX8 or 30 m immersion from this page?
No. Those claims require a defined finished product and its corresponding test conditions and evidence. Include the intended exposure in your project brief.
Should I sew or weld the closure into a dry bag?
Choose the process from the material stack and sealing requirement. A sewn attachment may suit a covered access opening, while a sealing membrane requires its own qualified joining and end-seal design.
Can the strip be used in a hydration bladder?
A drinking-water reservoir requires separate assessment of contact materials, cleaning, joining and finished-product suitability. No food- or water-contact approval is inferred from an enclosure material name.
Is this a FIDLOCK HERMETIC or Gooper spare part?
No brand affiliation, interchangeable replacement part or licence is implied. A custom magnetic lip project must be reviewed on its own construction and intellectual-property requirements.
R&D sample selection
Start with the opening you need to seal.
Share the opening length, fabric stack and intended use. Discuss a paired sample selection before committing to a production specification.
Sample contents, availability and shipping are confirmed for your project.
