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High Bonding Strength & Structural Stability
This automotive lighting PUR hot melt adhesive provides strong initial adhesion and durable bonding strength. It forms stable and reliable adhesion between PC, PMMA, BMC, metal and other lamp materials. After moisture curing, it delivers long-lasting bonding performance, effectively resisting vibration, impact and external force, ensuring stable assembly and long service life of automotive lamps.
Excellent Waterproof & Airtight Performance
This moisture-curing PUR adhesive offers outstanding sealing performance for automotive lighting systems. It effectively blocks moisture, dust and fogging, preventing internal condensation and circuit corrosion. With reliable waterproof and airtight effects, it greatly improves the safety, stability and service life of headlights, taillights and fog lights in complex driving environments.
Outstanding Anti-Yellowing & UV Resistance
Specially designed for automotive lighting applications, this PUR hot melt adhesive features excellent anti-aging and UV-resistant properties. It maintains high transparency and appearance stability under long-term light and heat exposure, without obvious yellowing, cracking or embrittlement. It preserves lighting effect and aesthetic appearance, meeting strict automotive quality standards.
Wide Temperature Resistance & Weatherability
This automotive-grade PUR adhesive shows excellent adaptability to extreme temperatures and harsh environments. It remains stable and reliable under high and low temperature conditions, without softening, hardening or degumming. It has strong resistance to weather, salt spray and humidity, ensuring stable performance for vehicles used in different global regions.
Eco-Friendly & Suitable for Automated Production
Solvent-free, low-odor and environmentally friendly, this PUR hot melt adhesive complies with automotive industry environmental requirements. It has good fluidity, fast curing speed and stable construction performance. It is highly compatible with automatic coating and assembly lines, helping to improve production efficiency and product consistency.
| Product Parameter | ||
| 1 | Product name | PUR Hot Melt Adhesive for Automobile Lights |
| 2 | Application | PUR Automobile Lights |
| 3 | Ingredient | MDI, polyester resin, polyether polyol |
| 4 | Appearance | white solid block |
| 5 | Properties | Low & high temperature resistance, oil & ink erosion resistance, excellent adhesion, good flexibility and thermostability. |
| 6 | Viscosity | approx. 2000-4000mPa.s@120°C |
| 10 | Capacity | 2kg/20kg/200kg |
| 11 | Application | Bonding and sealing of housings and lenses for automotive headlights, taillights and fog lamps; structural bonding of vehicle displays, dashboards and sensor components, etc. |
Automotive Lighting Assembly
This PUR hot melt adhesive is ideal for bonding and sealing automotive headlight, taillight and fog lamp housings and lenses. It provides reliable waterproofing and anti-fogging performance, ensuring long-term stability and safety of the lighting system under harsh driving conditions.
In-Vehicle Electronic Components
It is used for structural bonding of vehicle displays, dashboards and sensor components. The adhesive offers excellent vibration resistance and temperature stability, effectively protecting internal circuits and ensuring the reliable operation of in-vehicle electronic systems.
Connector and Wiring Harness Sealing
Applied in the sealing of automotive connectors and wiring harnesses, it forms a durable protective layer against moisture, dust and corrosion. This helps prevent electrical failures and improves the overall reliability of the vehicle's electrical system.
Battery Module Assembly
In new energy vehicles, it is used for structural bonding and thermal management of battery modules. Its good thermal conductivity and high temperature resistance ensure the stable operation of the battery pack, enhancing the safety and service life of the vehicle.
Interior Trim Bonding
It can also be used for bonding automotive interior trim materials such as plastics, fabrics and leather. The adhesive provides strong adhesion and good flexibility, maintaining the integrity and aesthetic appearance of the interior under long-term use.
Preparation
Ensure the PUR hot melt adhesive machine is placed on a stable surface, and check that the power supply and air pressure meet the equipment requirements. Clean the glue tank and nozzle to avoid residual glue affecting the operation.
Melting & Feeding
Place the solid PUR adhesive block into the preheated glue tank, set the temperature to 120–140°C, and wait for it to fully melt into a uniform fluid. Confirm the glue output is stable and free of bubbles before proceeding.
Coating & Assembly
Adjust the nozzle position and coating speed according to the product size, then apply the melted adhesive evenly to the bonding surface. Assemble the parts immediately and apply proper pressure to ensure full contact and initial bonding strength.
Post-Operation & Maintenance
After production, clean the nozzle and pipeline with a special cleaning agent to remove residual adhesive. Turn off the machine in sequence: first stop the glue supply, then lower the temperature, and finally cut off the power to extend the equipment's service life.
Q: What is the recommended storage condition for this adhesive?
A: Store it in a cool, dry place at 5–25°C, away from direct sunlight and moisture. Keep the package sealed to prevent premature curing, and use within 12 months of production.
Q: How long does it take for the adhesive to fully cure?
A: It achieves initial strength within minutes after application. Full curing depends on ambient humidity and temperature, typically taking 24–72 hours to reach maximum performance.
Q: Can this adhesive be used on all automotive lamp materials?
A: It is suitable for common substrates like PC, PMMA, BMC, and metal. For special materials, we recommend conducting a small-scale bonding test first to ensure compatibility.
Q: What should I do if the adhesive foams during application?
A: Check if the melting temperature is too high or if the adhesive has absorbed moisture. Reduce the temperature, use fresh adhesive, and ensure the equipment and workspace are dry.
Q: Is this adhesive environmentally friendly and compliant with automotive standards?
A: Yes, it is solvent-free, low-odor, and complies with RoHS and other automotive industry environmental regulations, making it safe for mass production applications.
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