INGADA™ PU-9720 Two-Component Polyurethane Adhesive – Lighting & Lamp Assembly
Advanced Anti-Fogging Permanent Moisture Seal
Crystal Clear Clarity:
Prevent moisture ingress that ruins light aesthetics and reduces night-time safety.
Extreme Durability:
Designed to withstand the engine-adjacent heat and exterior UV radiation without degradation.
Precision Engineering:
High-load structural bonds maintain the exact tolerances required for modern aerodynamic lamp designs.
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Eliminate Lens Fogging: Engineered with extremely low moisture permeability to prevent condensation inside headlight and taillight cavities.
Universal Plastic Bonding: Provides high-strength adhesion to PC, PMMA, ABS, and glass-fiber reinforced PPA.
Fast Industrial Curing: Rapid room-temperature or heat-assisted curing significantly increases production line throughput.
High-Heat & UV Stability: Maintains bond integrity under the intense thermal loads of modern LED/Xenon lighting and direct sunlight.
Rigid Structural Stability (Shore D 55): High-hardness formulation ensures precise dimensional alignment of the lamp assembly.
Technical Comparison
| Property | PU-9720 Specification |
| Mix Ratio |
1:1 |
| Hardness (Shore D) |
55 |
| Working Time |
55mins (Adjustable) |
| Glass Transition Temp |
>80℃ |
| Chemistry |
Two-Component Polyurethane |
Q：How does PU-9720 prevent lens fogging in automotive headlight assemblies?
A：PU-9720 is engineered with extremely low moisture permeability. It creates a hermetic seal that prevents water vapor ingress, directly addressing the root cause of condensation and fogging in lamp cavities.
Q：Is PU-9720 compatible with low-surface-energy engineering plastics?
A：Yes. It demonstrates superior adhesion to a wide range of automotive substrates, including PC, PMMA, ABS, and Glass-fiber reinforced PPA, without the need for specialized primers in most applications.
Q：Can the curing speed be synchronized with high-volume automated production lines?
A：Absolutely. While the standard working time is 5–15 minutes, the formulation is adjustable to meet specific Takt time requirements for automated metering and mixing equipment.
Q：What is the thermal stability of PU-9720 in high-performance lighting modules?
A：With a glass transition temperature (Tg) exceeding 80°C and excellent resistance to UV radiation, the adhesive maintains structural integrity and sealing performance under prolonged exposure to engine heat and sunlight.
Q：Does PU-9720 contain volatile components that might affect optical clarity?
A：No. The product is a solvent-free polyurethane system designed to meet strict OEM standards for low volatility, ensuring no outgassing interferes with lens or reflector optics.
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ISO 9001 Quality System
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Automotive Lighting Standards Compliant
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REACH & RoHS Compliant
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