Amorphous Strip Composite Adhesive
High-performance bonding solution designed for interlayer lamination of amorphous metal strips
What is amorphous alloy composite adhesive?
Amorphous composite adhesive is a specialized bonding agent designed for interlayer lamination and core curing of amorphous alloy strips. While amorphous alloys offer superior magnetic properties and low losses, reliable bonding solutions are essential during processing to ensure tight strip alignment and structural stability. Our composite adhesive delivers exceptional bond strength and environmental resistance while preserving the optimal magnetic performance of the material.
Superior Adhesion
Delivers strong interlayer adhesion to maintain structural integrity of amorphous ribbons during processing and use.
Maintain magnetic performance
The formulation is designed to fully account for amorphous material characteristics, preserving their low-loss and high-permeability advantages.
Adaptable to various processes
Supports multiple application methods such as brush coating and roller coating, adaptable to various production line requirements.
Product Model & Technical Specifications
We offer two distinct product lines to meet diverse process requirements.
FS7380
Water-based Epoxy Composite Adhesive (Coating)
Product Type
Single-component waterborne epoxy emulsion coating
Ingredients
Special waterborne epoxy resin, dedicated hardener, additives, and water
Product Features
- • Low odor, low VOC
- • Long shelf life
- • Miscible with water
Typical solids content
48.0±3.0%
Typical Viscosity
40.0±20.0 seconds at 25℃
Shelf Life
5–25°C for 4–6 months
Packaging Specifications
20 0kg steel drum, 1000kg IBC
Main Processes
Coating, Drying, Laminating, Pressure Curing
FS7381
Solvent-free epoxy adhesive
Product Type
Solvent-free, single-component epoxy adhesive
Ingredients
Specialty epoxy resins, dedicated hardeners, and additives
Product Features
- • Solvent-free, low odor
- • High solids content
- • Strong adhesion
Typical solids content
100%
Typical Viscosity
25°C at 50,000–100,000 cps
Shelf Life
3 months at 25°C
Packaging Specifications
5kg or 20kg plastic bucket
Main Processes
40℃ preheating for viscosity reduction, roller coating, pressure lamination, and pressure curing
Advantages Over Traditional Composite Adhesives
Why choose Feisi amorphous alloy composite adhesive?
| Compare Projects | Feisi Composite Adhesive | Traditional composite adhesive |
|---|---|---|
| Environmental Performance | ✓ Low VOC / Solvent-free | Contains organic solvents |
| Bond Strength | ✓ High Intensity | Average |
| Magnetic Performance Impact | ✓ Minimal impact | May reduce magnetic performance |
| Temperature resistance | ✓ Excellent | Average |
| Process adaptability | ✓ Multiple finishes available | 工艺 limitations |
| Technical Support | ✓ Professional Team | Limited support |
Typical Use Cases
Widely used in power electronics and new energy sectors
Amorphous Transformer Core
Interlayer bonding and curing for amorphous alloy cores of distribution transformers
Inductor Core
Bonding and securing amorphous cores for various inductors
New Energy Power Electronic Equipment
Magnetic components in photovoltaic inverters, wind power converters, and similar equipment
Application Areas
Amorphous alloy composite adhesive is widely used in power electronics, new energy, and industrial automation.
Distribution Transformer
Interlayer bonding and curing of amorphous alloy distribution transformer cores to reduce no-load losses.
Inductors and Reactors
Amorphous magnetic core bonding and fixation for various inductors, filters, and reactors
PV Inverter
High-Frequency Magnetic Components and Amorphous Inductor Cores in Photovoltaic Inverters
Wind Power Converter
High-Power Magnetic Components and Filtering Inductors in Wind Power Converters
Frequently Asked Questions
Frequently Asked Questions About Amorphous Strip Composite Adhesives
Q: What is the difference between FS7380 and FS7381? How should I choose?
A: FS7380 is a water-based epoxy emulsion coating with a solids content of approximately 48%, low VOC, and suitable for applications with strict environmental requirements. FS7381 is a solvent-free one-component epoxy adhesive with a solids content of 100% and higher viscosity. Selection depends on the production process: choose FS7380 if drying prior to lamination is required; choose FS7381 for direct roll coating and pressure bonding (requires preheating to 40°C to reduce viscosity).
Q: Does the composite adhesive affect the magnetic properties of amorphous materials?
A: Our composite adhesive formula is specifically designed to have minimal impact on the magnetic properties of amorphous materials. The cured adhesive layer is thin and uniform, ensuring no significant increase in core no-load losses. For practical applications, we recommend conducting small-batch testing to verify magnetic performance for specific products.
Q: How are curing temperature and pressure controlled?
A: Curing conditions depend on the specific model and application. FS7380 typically requires pressure curing after coating drying, at temperatures of 120-180°C; FS7381 needs to be preheated to 40°C to reduce viscosity before roller coating, followed by pressure lamination and curing at an appropriate temperature. Process parameters should be optimized based on your equipment and product requirements. Technical support is available upon request.
Q: What are the shelf life and storage conditions for the product?
FS7380 has a shelf life of 4-6 months when stored at 5-25℃. FS7381 has a shelf life of 3 months at 25℃. Both products must be kept in sealed containers, protected from direct sunlight and high temperatures. FS7380 is water-miscible; however, moisture should be avoided during storage to prevent degradation.
Q: Can the FS7380 and FS7381 models be used interchangeably?
Cannot directly replace. Selection requires validation based on coating equipment, adhesive layer thickness, production cycle time, cleaning method, packaging requirements, and target performance. FS7380 is a water-based system suitable for drying after coating before lamination; FS7381 is a solvent-free system designed for direct roll coating and pressure lamination. A small-batch process validation is recommended prior to full-scale transition.
Q: Is the amorphous alloy composite adhesive suitable for blueing or annealing processes?
Not suitable. FS7380 and FS7381 cannot withstand bluing or annealing processes. These products are designed for interlayer bonding of amorphous strips and core curing. The cured adhesive layer may degrade or decompose under high-temperature bluing or annealing conditions. If your process includes bluing or annealing, please contact our technical team to discuss alternative solutions.
Q: Can the recommended curing parameters be used directly for mass production?
Recommended parameters are a starting point for your process. Bonding performance may vary based on the strip type, equipment, and core structure. We recommend completing sample testing and process validation before full-scale production. Begin with a small batch trial to optimize temperature, pressure, and time according to your specific equipment, strip specifications, and product requirements. Once you have established the optimal process window, proceed to mass production.
Q: Do you offer sample testing and technical support?
Yes, we offer free sample testing and provide process parameter recommendations and technical support tailored to your specific application needs. Contact our technical team to request samples and detailed technical documentation.
Technical Downloads
Get detailed product technical documentation and datasheets
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Need technical selection or sample testing?
Our technical expert team will recommend the most suitable product model based on your specific application needs and provide free sample testing.
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