HJ-WA Technical Data
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Technical values are based on current HJ-WA product data. Actual processing and final laminated-glass performance also depend on the glass structure, lamination equipment and processing conditions.
Super Clear Safety EVA Interlayer
Product Features ：
1.High Transparency
2.Excellent UV Protection
3.Strong Adhesion to Glass
4.Crosslinking Stability
5.Reliable Mechanical Properties
6.Weather Resistance
7.Anti-Yellowing Performance
8.Flexible Specifications
9.Wide Outdoor Applications
HJ-WA Clear EVA Interlayer Film for Outdoor Laminated Glass
HERO SECTION
HJ-WA is a clear, high-flow EVA interlayer developed for outdoor laminated glass. It combines good optical clarity, strong bonding to glass and stable performance under UV, heat and humidity exposure.
Visible Light Transmittance >90%
Haze <0.3%
UV Blocking ≥99%
Standard Thickness: 0.38 mm / 0.76 mm
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PRODUCT OVERVIEW
Clear EVA Film for Outdoor Laminated Glass
HJ-WA is E&N HONJIA's clear EVA interlayer for outdoor laminated glass applications.
It is the higher-flow option in our HJ-WA / HJ-WH outdoor EVA series. During lamination, HJ-WA provides more flow and penetration than HJ-WH, making it suitable for glass processors who prefer easier wet-out during the lamination process.
The film is mainly used for architectural and outdoor safety glass where transparency, glass adhesion, resistance to moisture and long-term outdoor appearance are important.
HJ-WA is supplied in 0.38 mm and 0.76 mm standard thicknesses. Standard width is up to 2500 mm, with other dimensions available according to production requirements.
PRODUCT STRUCTURE
How HJ-WA Works in Laminated Glass
A typical laminated glass structure using HJ-WA is:
During lamination, the EVA film is placed between the glass sheets and processed under heat and vacuum. The film flows between the glass surfaces and crosslinks during the cycle, forming the bonding layer of the finished laminated glass.
Glass
Provides the main structural surface and determines the basic thickness, shape and appearance of the finished panel.
HJ-WA EVA Interlayer
Bonds the glass layers together and contributes to the optical appearance, moisture resistance and fragment retention of the laminated glass.
Finished Laminated Glass
After the lamination cycle is completed, the glass and EVA interlayer form one laminated structure ready for the intended application.
PRODUCT FEATURES
Why Glass Processors Use HJ-WA
Clear Finished Appearance
HJ-WA has visible light transmittance above 90% and haze below 0.3%. It is intended for laminated glass where a clear finished appearance is required.
Higher Flow During Lamination
HJ-WA is the higher-flow grade in the HJ-WA / HJ-WH series. It is normally selected when more EVA flow and penetration are preferred during processing.
For applications where tighter flow control and less edge overflow are required, HJ-WH is the more suitable option.
UV Protection
The film blocks at least 99% of UV radiation in the 280–380 nm range. This helps reduce the effect of long-term UV exposure on the laminated structure and its appearance.
Strong Bonding to Glass
HJ-WA has a measured glass adhesion value above 80 N/cm under the specified test conditions.
Good bonding is important for maintaining a stable laminated structure during handling and use.
Resistance to Heat and Humidity
HJ-WA has been evaluated using boiling-water and damp-heat testing, including 100°C boiling water for 4 hours and 85°C / 85% relative humidity exposure.
These tests are used to check the stability of the film under demanding moisture and temperature conditions.
Flexible Mechanical Properties
With tensile strength above 15 MPa and elongation at break of at least 700%, HJ-WA combines strength with flexibility before and after processing.
Practical Roll Sizes
The standard specifications are designed around common laminated-glass production requirements:
0.38 mm × 2500 mm × 100 m
0.76 mm × 2500 mm × 50 m
If another width or roll format is needed, please send us the required glass size and production details for confirmation.
APPLICATIONS
Where HJ-WA Is Commonly Used
HJ-WA is mainly intended for clear outdoor laminated glass where the interlayer must deal with long-term exposure to sunlight, temperature changes and humidity.
Architectural Curtain Walls
Suitable for clear laminated façade glass where appearance and outdoor durability are important.
Skylights and Roof Glazing
Can be used in laminated roof and overhead glass exposed to sunlight and changing outdoor temperatures.
Glass Balustrades and Guardrails
Suitable for laminated glass used in balconies, terraces, stairs and other architectural applications.
Final glass configuration should always be selected according to the structural and safety requirements of the project.
Outdoor Decorative Laminated Glass
Can be used for exterior decorative glass and design panels where clear EVA and outdoor resistance are required.
Other Outdoor Laminated Glass
For other applications, send us the glass structure, panel size and intended use. We can help check whether HJ-WA is the appropriate EVA grade before production.
HJ-WA OR HJ-WH?
How to Choose Between the Two Outdoor Clear EVA Grades
HJ-WA and HJ-WH have similar optical and outdoor performance targets. The main difference is their flow behaviour during lamination.
| HJ-WA | HJ-WH | |
|---|---|---|
| EVA Type | Clear outdoor EVA | Clear outdoor EVA |
| Flow | Higher flow | Low flow |
| Light Transmittance | >90% | >90% |
| Haze | <0.3% | <0.3% |
| Standard Thickness | 0.38 / 0.76 mm | 0.38 / 0.76 mm |
| Main Processing Characteristic | More flow and penetration | Better flow control |
| Better Suited For | Processing where higher EVA flow is preferred | Processing where reduced edge flow is preferred |
Choose HJ-WA when:
More EVA flow during lamination is useful for your glass structure or production method.
Choose HJ-WH when:
You need tighter control of the film during lamination or want to reduce excessive EVA flow around the glass edges.
If you are not sure which grade to use, send us your glass structure, panel size and current lamination process. We can compare HJ-WA and HJ-WH for your application.
CUSTOMIZATION
Available Specifications
Our standard HJ-WA specifications are:
Thickness: 0.38 mm and 0.76 mm
Standard Width: 2500 mm
Roll Length: 100 m for 0.38 mm and 50 m for 0.76 mm
Other dimensions can be discussed according to the required specification and production quantity.
When asking for a custom size, please provide:
Glass size
Required EVA thickness
Required film width
Approximate quantity
Laminated glass application
This helps us check the most practical production arrangement before quotation.
PROCESSING SUPPORT
Lamination Conditions Depend on Your Glass Structure
We do not recommend using one fixed lamination cycle for every project.
The suitable process can change according to:
Glass thickness
Number of glass layers
EVA thickness
Panel size
Vacuum system
Heating equipment
Production loading method
If you are testing HJ-WA for the first time, send us your glass structure and equipment information before production. Our team can provide the relevant processing recommendation for your trial.
This is especially useful when switching from another EVA grade or when working with large glass panels.
PRODUCTION AND QUALITY CONTROL
How We Check HJ-WA Before Shipment
HJ-WA EVA film is produced in our controlled workshop and goes through inspection before shipment.
Film Production
The EVA film is produced according to the required thickness and roll specification.
Thickness and Appearance Check
Film thickness, roll condition and visible appearance are checked during production and final inspection.
Performance Testing
Product testing includes key properties such as optical performance, adhesion, UV resistance and crosslinking performance.
Final Roll Inspection
Each roll is checked before packing to identify visible defects or specification issues.
Protective Packaging
Finished EVA rolls are protected with PE film and packed for transportation. Carton or pallet packing is used according to the order and shipping arrangement.
WHY E&N HONJIA
More Than Supplying a Roll of EVA Film
Different laminated-glass factories use different glass structures, furnaces, vacuum systems and production settings. For this reason, choosing the correct EVA grade is often more important than simply comparing one specification table with another.
E&N HONJIA supplies different EVA grades for indoor, outdoor, clear, ultra-clear and different flow requirements.
For customers testing a new product, we can discuss the glass structure and application before the order, help select the suitable EVA grade and provide samples for evaluation.
Custom dimensions, trial orders and regular production orders can all be discussed according to the actual project requirement.
Our aim is simple: provide the film that matches the customer's lamination process, rather than asking the customer to adapt every project to one EVA grade.
FAQ
1. What is the main difference between HJ-WA and HJ-WH?
Both are clear EVA grades for outdoor laminated glass.
HJ-WA has higher fluidity during lamination, while HJ-WH is a low-flow grade designed for better control of EVA movement around the glass edges.
The better option depends on your glass structure and production process.
2. What are the standard HJ-WA sizes?
The standard specifications are:
0.38 mm × 2500 mm × 100 m
0.76 mm × 2500 mm × 50 m
Other dimensions can be discussed according to your requirement.
3. Can the width or thickness be customized?
Yes. Please send us the required thickness, width, roll length and approximate quantity. We will check whether the specification can be arranged for production.
4. Can I get a sample before ordering?
Yes. Samples are available for product testing.
Tell us which thickness you need and what type of laminated glass you plan to produce. We will confirm the appropriate sample arrangement and shipping details with you.
5. What is the MOQ?
We can support trial orders as well as regular production orders.
The most practical minimum quantity depends on the thickness, width, roll specification and current production arrangement, so please send us your required specification for confirmation.
6. What is the normal lead time?
For standard products, the usual production lead time is around 7–15 working days after the order is confirmed.
Actual timing depends on quantity, specification and production schedule.
7. What lamination temperature and cycle should I use?
The correct process depends on the glass thickness, EVA structure, panel size and lamination equipment.
Rather than giving one setting for every customer, we recommend sending us your glass configuration and equipment information so we can provide the corresponding processing recommendation.
8. How is HJ-WA packed?
EVA rolls are protected with PE film and packed for transportation. Carton or pallet packing can be arranged according to the order and shipping method.
9. Is HJ-WA suitable for outdoor laminated glass?
Yes. HJ-WA is developed for outdoor laminated glass and has been evaluated for UV, moisture and heat-related performance.
The final suitability still depends on the complete glass structure and the requirements of the finished project.
10. Can HJ-WA be used for exposed-edge laminated glass?
Exposed-edge performance depends not only on the EVA film but also on glass processing, edge quality, installation conditions and the final application.
If the glass edge will remain exposed outdoors, please tell us the glass structure and project conditions before specifying the product. We can review the application with you first.
NEED HELP CHOOSING THE RIGHT EVA FILM?
If you are comparing HJ-WA with another EVA grade, send us:
Your glass structure
Panel size
Application
Current EVA thickness
Lamination equipment
Required quantity
We can help you check the suitable product before you start a full production run.
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