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PYE420 Two-Component Epoxy Adhesive for Industrial Bonding Applications
PYE420 is a flame-retardant, low-shrink two-component epoxy adhesive developed for industrial bonding applications that require reliable mechanical strength, impact resistance, and long-term durability. The adhesive has a relatively long working life and cures at room temperature after the two components are mixed.
After curing, PYE420 forms a tough white bondline with good peel and impact resistance. It also provides good thermal shock resistance, mechanical and electrical performance, as well as resistance to a broad range of solvents and chemicals.
With its balanced bonding properties and material compatibility, PYE420 is suitable for low-stress general industrial applications involving metals, plastics, ceramics, and other substrates.
PYE420 Two-Component Epoxy Adhesive Overview
PYE420 is supplied as a two-part epoxy system with a 1:1 mixed volume ratio. The two components are combined before application and then cure at room temperature to produce a durable bonded joint.
The formulation is designed to provide a combination of flame retardancy, low shrinkage, peel resistance, impact resistance, and resistance to chemical media.
The adhesive can be used to bond materials such as aluminum, steel, other metals, plastics, and ceramics, making it suitable for multi-material industrial assembly.
Main Features of PYE420
Flame-Retardant Formulation
PYE420 is formulated with flame-retardant properties for industrial applications where flame resistance is an important material consideration.
Low Shrinkage During Curing
The low-shrinkage formulation helps minimize dimensional changes during the curing process, supporting stable bonding results in industrial assembly applications.
Strong Peel and Impact Resistance
After curing, PYE420 provides good resistance to peeling and impact. These properties make it suitable for applications where bonded components may experience mechanical stress or vibration.
Resistance to Solvents and Chemicals
The cured adhesive demonstrates good resistance to a range of solvents and chemical media, supporting its use in industrial environments where bonded assemblies may encounter chemical exposure.
Thermal Shock Resistance
PYE420 maintains useful mechanical and electrical properties after curing and provides good resistance to thermal shock. Its recommended operating temperature range is -40°C to 150°C.
Typical Industrial Applications
PYE420 is intended for low-stress industrial bonding applications where dependable adhesion and durability are required.
Industrial Assembly
The adhesive can be used for bonding different materials during industrial assembly processes, including metal-to-metal and multi-material bonding.
Motor Applications
PYE420 is suitable for applications in motors and related equipment where adhesive bonding, insulation bonding, coil fixing, or sealing may be required.
Electrical and Electronic Components
Its mechanical and electrical properties allow the adhesive to be considered for bonding and insulating applications involving electrical and electronic components.
Automotive and Transportation Equipment
The combination of impact resistance, peel resistance, and environmental durability makes PYE420 suitable for selected low-stress bonding applications in automotive and transportation equipment.
Industrial Machinery
PYE420 can be used to join metals, plastics, ceramics, and other compatible substrates in machinery and equipment assembly.
Specification
| Model number | PYE420 | |
| Mixed volume ratio | 1∶1 | |
| Color after mixing | White liquid / White liquid | |
| (mPa·s, 25℃)Mixed viscosity | 60000-80000 | |
| Storage method: |
The product should be stored in its original packaging in a dry and clean place. For long-term storage, the recommended temperature is 8 – 25 degrees Celsius, with a shelf life of 1 year. |
|
| Packaging specification | 50ml、400ml | |
| (MPA)Shear bond strength | SUS 304-SUS 304 | 22.1(AF+CF) |
| AnAl-AnAl | 14.7(AF) | |
| （W/m·K）thermal conductivity | — | |
| Temperature rang | -40℃~150℃ | |
| Features |
1. Excellent flame retardancy. 2. Low shrinkage rate. 3. Superior peel resistance and aging impact resistance. 4. Superior medium resistance. 5. Applicable to industries such as industrial assembly and motors. |
|
Application and Processing Guidelines
Proper preparation and handling are important for achieving consistent bonding performance with a two-component epoxy adhesive.
1. Bring the Product to Room Temperature
If the adhesive has been refrigerated, allow it to gradually return to room temperature before use. Rewarming the product according to the recommended procedure helps prepare it for application.
2. Prepare the Bonding Surfaces
For applications requiring higher bonding strength, surfaces should be thoroughly cleaned before adhesive application.
Paint, oxide layers, oil, dust, release agents, and other contaminants should be removed to provide suitable bonding surfaces.
3. Apply and Cure
Mix the two components according to the specified 1:1 ratio and distribute the adhesive evenly over the surfaces to be bonded.
For the intended application process, the adhesive should be applied to the substrate within approximately 60 minutes. Larger adhesive quantities or higher temperatures can shorten the available working time.
Actual heating temperature and curing time should be optimized according to the specific workpiece and production conditions. Any excess uncured adhesive can be removed using a ketone solvent.
Why Consider PYE420 for B2B Industrial Bonding?
For manufacturers and industrial buyers, adhesive selection involves more than initial bonding strength. Processing time, substrate compatibility, environmental resistance, and long-term durability can all influence production performance.
PYE420 provides a combination of long working life, low shrinkage, flame retardancy, peel and impact resistance, and chemical resistance.
Its ability to bond aluminum, steel, other metals, plastics, and ceramics also allows manufacturers to use one adhesive solution across different low-stress assembly requirements.
Key Considerations When Purchasing a Two-Component Epoxy Adhesive
When selecting a two-component epoxy adhesive for industrial production, buyers should evaluate the adhesive against the actual manufacturing process and service environment.
Important factors include:
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Working time: The available working period should correspond with the assembly process and production cycle.
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Bonding requirements: Peel, shear, impact, and other mechanical properties should be evaluated according to the application.
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Substrate compatibility: Confirm suitability for metals, plastics, ceramics, or mixed-material assemblies.
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Environmental exposure: Temperature changes, humidity, solvents, and chemicals should be considered.
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Curing process: Determine whether room-temperature curing or additional heat treatment is appropriate for the application.
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Storage requirements: Follow the recommended storage conditions to maintain product quality.
Storage and Handling
Proper storage and handling can help maintain the performance of PYE420 throughout its shelf life.
The product should remain in its original packaging and be stored in a clean, dry environment. For long-term storage, a temperature range of 8°C to 25°C is recommended, with a stated shelf life of one year.
During application, clean tools should be used, containers should remain properly sealed when not in use, and unnecessary temperature fluctuations should be avoided.
The specified mixing ratio should also be maintained to support consistent curing and bonding performance.
Frequently Asked Questions
What is a two-component epoxy adhesive?
A two-component epoxy adhesive contains two separate components that are mixed before application. The combined material then cures to form a durable adhesive bond.
Is PYE420 suitable for structural bonding?
PYE420 is intended for low-stress structural and general industrial bonding applications where good peel and impact resistance are required.
What materials can PYE420 bond?
PYE420 can be used with aluminum, steel, other metals, various plastics, and ceramics, subject to the specific bonding conditions and surface preparation.
What is the working temperature range of PYE420?
The specified temperature range is -40°C to 150°C.
How should the adhesive surfaces be prepared?
For higher-strength bonding, contaminants including oil, dust, paint, oxide films, release agents, and other surface residues should be removed before application.
What is the mixing ratio of PYE420?
PYE420 uses a 1:1 mixed volume ratio for the two components.
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