The CLL-1101 is a toothless silicone magnetic zipper from the MAGTECH CLL Series, developed as a metal-zipper alternative for ski jackets, high-end down coats, waterproof outdoor shells and technical bags. A sintered NdFeB magnetic core with 2200–2300 Gs paired attraction is fully encapsulated in flexible silicone, so the fastener contains no teeth and no slider to jam or derail.
Each pair measures 15 × 3 × 670 mm with a 5 mm side margin and weighs 34 g. The strip is built inside the fabric interlayer and perimeter edge-stitched, closing automatically into alignment for silent, one-handed operation.
Key Features
Toothless closureNo teeth or slider mechanism, so mechanical jamming and slider derailment are removed from the design.
Fully sealed silicone bodyZero fluid ingress and salt-spray resistance for waterproof shells and wet outdoor use.
Silent one-hand usePull to open, self-locating automatic closure — no metal-on-metal sound.
Wide thermal windowStable operation from −40°C to +80°C for alpine and cold-storage environments.
Concealed exteriorStitched into the fabric interlayer for a seamless, hardware-free outer aesthetic.
Technical Specifications
Model
CLL-1101 (CLL Series)
Product type
Silicone magnetic zipper / toothless silent slide fastener
Dimensions
15 × 3 × 670 mm
Side margin
5 mm
Weight
34 g per pair
Magnetic core
Sintered NdFeB encapsulated in flexible silicone
Core magnetism
2200–2300 Gs
Magnetizing method
Radially magnetized paired attraction
Holding force (vertical peel-off)
1.61 N/cm (164.33 g/cm)
Holding force (parallel shear)
1.38 N/cm (140.53 g/cm)
Operating temperature
−40°C to +80°C
Waterproofing
Fully sealed silicone casing, zero fluid ingress
Installation
Built inside fabric interlayer, perimeter edge-stitched
Models and Options
The CLL-1101 is the primary documented model in the CLL Series, supplied in the 670 mm length with a 5 mm side margin and a 34 g pair weight. Because the strip is produced on flexible magnetic extrusion lines, dimensional formats, encapsulation build and magnetic Gauss grades can be specified to match a garment pattern; custom Pantone colour matching is also available.
Documented data in this listing covers CLL-1101 only. Alternative formats are quoted on request against your drawing.
Materials and Structure
The magnetic circuit uses high-energy sintered neodymium (NdFeB) magnetized radially as a matched pair, so the two strips locate each other rather than requiring a slider track. The magnets are encapsulated in high-grade flexible silicone that forms a continuous sealed casing around the core, protecting it from water, salt spray and repeated flexing while keeping the strip soft enough to follow a garment edge.
Installation is a sewing operation: the strip sits inside the fabric interlayer and is perimeter edge-stitched, leaving only a slim silicone line visible on the finished panel.
Applications
Specified for ski jackets, high-end down coats, waterproof outdoor shells, and technical bags and backpacks. The combination of a sealed body and −40°C to +80°C operation suits alpine outerwear, while the toothless face and self-locating closure suit minimalist bag flaps and pack openings that need quiet, one-handed access with gloves on.
Ski jackets
High-end down coats
Waterproof outdoor shells
Technical bags & backpacks
Customization
MAGTECH supports dimensional customization, encapsulation specification, custom magnetic Gauss grades and custom Pantone colour matching for the CLL Series, backed by a 12-engineer R&D team and a 2,500 m² production facility. Materials are certified to OEKO-TEX® STANDARD 100 Class II for skin contact, and are compliant with EU REACH, RoHS and PFAS-free requirements; magnetic shielding packaging is used for air freight under IATA Dangerous Goods Regulations (UN2807 criteria).
Frequently Asked Questions
How does a toothless zipper stay closed?
Closure comes from the radially magnetized NdFeB pair rather than interlocking teeth. The two strips attract along their full length and self-locate into alignment when brought together.
Is the CLL-1101 actually waterproof?
The magnetic core is enclosed in a fully sealed silicone casing rated for zero fluid ingress, and the silicone body is salt-spray resistant.
What does the holding force mean in garment terms?
The measured values are 1.61 N/cm (164.33 g/cm) vertical peel-off and 1.38 N/cm (140.53 g/cm) parallel shear, which lets you calculate opening resistance against your panel length.
How is it installed on a jacket?
The strip is placed inside the fabric interlayer and perimeter edge-stitched, so the hardware is concealed and only the silicone edge shows.
What temperature range does it handle?
−40°C to +80°C, covering alpine outerwear and cold-storage logistics.
Can lengths, Gauss grade and colour be customized?
Yes — dimensional, encapsulation, magnetic Gauss and custom Pantone colour options are available. Share your drawing and target pull force for a matched specification.
Which compliance documents are available?
OEKO-TEX® STANDARD 100 Class II, EU REACH, RoHS and PFAS-free compliance, plus bilingual GHS-compliant MSDS for customs clearance.
Inquiry Information
Contact: Alex · Beijing Magnetic Technologies Co., Ltd. (MAGTECH®)
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