Product Name: Automotive Grade Optical Adhesive (OCA / LOCA) – Custom Die-Cut
Description:
Automotive Grade Optical Adhesive is a specialized bonding material designed for laminating, sealing, or attaching optical components within vehicle interior and exterior systems. It is available in two primary forms: Optically Clear Adhesive (OCA) – a pre-cut solid film, and Liquid Optically Clear Adhesive (LOCA) – a liquid resin cured by UV light. This product meets stringent automotive standards for temperature cycling, humidity resistance, UV stability, and vibration damping.
Custom die-cutting services are available for OCA films, providing ready-to-use adhesive shapes that eliminate waste and reduce assembly time.
Key Features:
High Optical Clarity: Light transmission > 99% (typical), haze < 0.5%
Excellent Durability: Resists yellowing, delamination, and cracking under prolonged UV, heat, and humidity
Wide Operating Temperature: -40°C to +105°C (or higher, depending on grade)
High Adhesion Strength: Bonds to glass, ITO-coated glass, PMMA, polycarbonate, and other display materials
Gap Filling Capability (LOCA) : Fills uneven surfaces and eliminates air gaps
Low Shrinkage (LOCA) : Minimal volume change during UV curing
Vibration & Impact Resistance: Maintains bond integrity under automotive vibration and mechanical shock
Custom Die-Cut (OCA) : Precision cut to any shape, with or without release liner, kiss-cut or through-cut
Product Forms:
| Form | Description | Best For |
|---|---|---|
| OCA (Optically Clear Adhesive) | Solid pressure-sensitive adhesive film supplied on release liner. Custom die-cut available. | Display lamination, touch panel bonding, cover glass attachment |
| LOCA (Liquid Optically Clear Adhesive) | UV/thermal-cured liquid resin. Dispensed and cured in place. | Curved displays, uneven surfaces, large-area bonding |
Typical Applications (Automotive):
Display & HMI (Human-Machine Interface):
Center stack display lamination (cover glass to LCD/OLED)
Instrument cluster bonding
Head-up display (HUD) optical assembly
Rear-seat entertainment screens
Sensors & Cameras:
ADAS camera lens bonding and sealing
LiDAR optical window attachment
Rain/light sensor optical coupling
In-cabin driver monitoring system (DMS) lenses
Lighting:
LED light guide bonding
Interior ambient light lens attachment
Exterior lighting (tail lamp, headlamp) optical element bonding
Other Optical Components:
Mirror assembly (auto-dimming mirrors)
Touch sensor bonding to glass or film
Optical filter attachment
Automotive Grade Compliance (Reference):
| Requirement | Standard / Test |
|---|---|
| Temperature Cycling | ISO 16750-4 / AEC-Q100 (varies by grade) |
| Humidity Resistance | 85°C / 85% RH, 1000+ hours |
| UV Stability | SAE J2527 (xenon arc) or equivalent |
| Vibration Resistance | ISO 16750-3 (random vibration) |
| Chemical Resistance | Gasoline, oil, windshield washer fluid, etc. |
| Flammability | UL94 or FMVSS 302 (interior materials) |
| RoHS / REACH | Compliant |
Technical Specifications (OCA – Reference Values):
| Parameter | Typical Value |
|---|---|
| Adhesive Type | Acrylic (UV-cured or PSA) |
| Light Transmission (400–800nm) | ≥ 99% |
| Haze | ≤ 0.5% |
| Yellowness Index (ΔYI) | ≤ 1.0 after aging |
| Dielectric Strength | ≥ 20 kV/mm |
| Peel Adhesion (to glass) | ≥ 15 N/25mm |
| Storage Modulus (25°C) | 10 – 500 kPa (tunable for application) |
| Thickness Range | 25 – 250 µm (customizable) |
| Operating Temperature | -40°C to +105°C |
| UV Cutoff Wavelength | < 360 nm (for UV-curable grades) |
Custom Die-Cut Services (for OCA):
We offer precision die-cutting of optical adhesive films with the following capabilities:
Shapes: Any 2D contour, including circles, rectangles, complex cutouts, and split lines
Configurations:
Kiss-cut (adhesive on liner, easy peel)
Through-cut (individual pieces)
Roll format or sheet format
Liner Options:
Heavy release liner (carrier side)
Light release liner (adhesive side)
Anti-static treated liners for cleanroom applications
Tolerances: ±0.1mm to ±0.2mm (depending on shape complexity)
Cleanroom Processing: ISO Class 7 (Class 10,000) or better available
Why Choose Our Automotive Grade Optical Adhesive?
Proven Reliability: Formulated specifically for automotive environmental and lifetime requirements
Custom Solutions: Die-cut shapes to match your display or sensor dimensions exactly
Cleanroom Manufacturing: Minimizes contamination for optical-grade cleanliness
Technical Support: Assistance with adhesive selection, lamination process, and durability testing
Traceability: Lot-level traceability for automotive quality systems (IATF 16949 compliant facilities available)
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