Molded Plastic Zippers for Workshop and Manufacturing Use
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Molded Plastic Zippers in Manufacturing
Molded plastic zippers are selected when a visible, individually defined tooth profile is required. Their performance depends on tooth geometry, tape construction, slider channel, bottom hardware and the finished-product sewing method.
Despite the Turkish trade name “bone zipper”, the elements are manufactured from plastic resin rather than natural bone.
Selection by Manufacturing Area
| Manufacturing Area | Zipper Approach | Production Check |
|---|---|---|
| Jacket and vest | Open-end standard molded zipper | Test the insertion pin, box and centre-front length. |
| Coat and long outerwear | Long open-end or verified two-way molded zipper | Two sliders are required for lower-opening functionality. |
| Outerwear pocket and bag compartment | Short closed-end molded zipper | Confirm the actual opening and slider direction. |
| Decorative fashion product | Crocodile-tooth or metallic-look zipper | Approve finish consistency on the production sample. |
| Tent, tarp and technical cover | Heavy continuous molded chain | Plan reinforcement, corners, sliders and end finishing. |
Plastic Material Description
Product specifications should use clear material descriptions such as:
- Molded plastic teeth
- Injection-moulded plastic elements
- POM plastic teeth — only where confirmed
- Metallic-look molded plastic teeth
Natural bone, genuine metal and molded plastic must not be listed as the same material.
Closed-End, Open-End and Two-Way Functions
A closed-end zipper remains joined at the bottom and may be used for pockets, bags and accessory closures.
An open-end separating zipper allows both tapes to detach through the insertion-pin and box system. It is used for jackets, coats and vests.
A two-way separating zipper has two separate sliders and allows the lower section to open. It must not be confused with an ordinary one-slider separating zipper.
Crocodile-Tooth Molded Zippers
Crocodile-tooth describes a visibly larger or patterned molded tooth. It can be used as a design detail on fashion outerwear, sports jackets, coats and statement accessories.
The decorative profile does not provide a verified strength classification by itself. Strength and performance must be tested on the actual zipper.
Metallic-Look Molded Zippers
Metallic-look zippers create the appearance of gold, silver, brass, copper, antique or black metal while retaining a molded plastic tooth structure.
These products should remain within the molded plastic category and should not be filtered as genuine metal zippers.
Ready-Length and Continuous Chain
A ready-length zipper includes the slider and prepared end construction. It can be installed on standard jacket, coat, pocket or bag patterns.
Continuous molded chain is cut during production and still requires compatible sliders and secure end finishing.
See chain products in the continuous zipper-chain category.
Slider Compatibility
Molded-tooth sliders must match the actual tooth height, width and geometry. Turkish Type 5, Type 6 and Type 9 descriptions should not be used as universal compatibility standards without checking the real chain.
Browse available components in the zipper slider category.
Pre-Production Testing
- Confirm the functional length on the finished pattern.
- Check whether the tooth profile creates excessive stiffness.
- Run the slider repeatedly along the full chain.
- Check that the closed teeth do not separate behind the slider.
- Test the insertion pin and box on open-end products.
- Compare tape and tooth colors with the approved fabric.
- Inspect metallic finishes after sewing and folding.
Common Manufacturing Errors
- Do not describe molded plastic teeth as natural bone.
- Do not filter metallic-look plastic teeth as genuine metal zippers.
- Do not describe all separating zippers as two-way.
- Do not mix sliders made for different tooth profiles.
- Do not approve replacement compatibility from length alone.
- Do not guarantee coating performance without a sample test.
- Do not begin bulk production before approving the box, pin and slider.
Frequently Asked Questions
What are molded plastic zipper teeth made from?
They are manufactured from moulded plastic material and attached directly to textile zipper tape.
Can molded plastic zippers be used on jackets?
Yes. Open-end models are commonly used for jacket, coat and vest front closures.
Is a metallic-look molded zipper made from metal?
No. The metallic appearance is a color or finish applied to molded plastic teeth.
What is a crocodile-tooth molded zipper?
It is a molded zipper with a larger or patterned decorative tooth appearance. The elements remain plastic.
Are separating and two-way zippers the same?
No. Separating means the tapes detach completely. A two-way zipper also has two sliders and lower-opening operation.
Can a coil zipper slider be used on molded teeth?
No. Molded and coil chains use different geometries and require matching slider channels.
Last updated: July 22, 2026
Business: E-Zippers — zipper, slider and textile accessory supplier, Istanbul, Türkiye.
