Introduction
Hot melt adhesive for automotive wiring harnesses is specifically designed for dual-wall heat-shrink tubing. This adhesive is co-extruded with heat-shrinkable material to create a dual-wall tubing that offers superior sealing and waterproofing. It plays a critical role in protecting the wiring harness from environmental factors, ensuring the longevity and reliability of the automotive wiring system.
TYPICAL PROPERTIES
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Color and shape |
yellow/ Round |
Visual inspection |
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Softening point (℃) |
100℃ |
GB/T 4507 |
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Viscosity @ 160℃*mpa.s |
60000±20000mpa.s |
Brookfield viscometer |
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Peel test PE/steel (N/2.5cm) |
≥75 |
GB/T 2790 Specimen width：25mm Speed 100mm/min |
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Environmental protection performance |
Non-toxic,Passed RoHS Test |
Professional testing agency |
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Operation System |
Professional extrusion equipment |
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Operation temperature |
90-100℃ |
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Packing specification:25kg per bag.
Features and Applications
This hot melt adhesive is ideal for use in dual-wall heat-shrink tubing in automotive wiring harnesses. Key features include:
Radiation Resistance: Protects against degradation from radiation exposure.
High Liquidity: Ensures smooth application and coverage during the extrusion process.
Co-Extrusion Process Compatibility: Suitable for use in co-extrusion processes with heat-shrinkable materials.
Excellent Adhesion: Provides strong bonding with heat-shrinkable materials and other surfaces.
Superior Insulation and Sealing: Offers excellent sealing to protect against moisture and environmental factors.
Usage and Operation
For optimal performance, this hot melt adhesive should be applied using professional extrusion equipment. It is particularly well-suited for small diameter dual-wall heat-shrinkable tubing. The temperature at the feeding port must be carefully controlled during production to prevent the hot melt glue pellets from bridging, which can affect the discharge speed.
Safety Precautions
While in solid form, the hot melt adhesive poses no health risks. However, once melted, it becomes a hot molten plastic capable of causing severe burns. Safety precautions, including the use of insulated gloves and safety goggles, should be followed during handling. Please refer to the Material Safety Data Sheet (MSDS) for detailed safety information.
Packaging and Storage
The product is packaged in Kraft paper bags with a waterproof liner, containing 25kg per bag. It should be stored in cool, dry conditions to maintain its quality. Avoid exposing the product to temperatures above 200℃ for extended periods, as this can degrade its performance and appearance.
Factory and Certification
Service
Timely Response: We are committed to responding to your inquiries promptly.
Free Samples: Available upon request, though shipping costs are the responsibility of the customer.
Small Batch Orders: We accept small batches or sample orders and can work with customers for trials.
Custom Packaging: We offer blank packaging or the option to apply special labels as per customer requirements.
This hot melt adhesive offers a reliable solution for automotive wiring harness applications, ensuring durability and protection in demanding environments.
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