Etched Sensor & Headlamp Vent Mesh in 304 Stainless Steel (AISI 304 (1.4301)) is used for letting automotive headlamps, ECUs, cameras and LiDAR housings breathe through etched vent meshes that block debris and support a waterproof membrane. The alloy gives good general corrosion resistance in atmosphere and fresh water and is essentially non-magnetic (annealed), with a practical service limit of approx. +450 °C continuous.
Alloy Properties
| Grade designation | AISI 304 (1.4301) |
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| Magnetic response | Essentially non-magnetic (annealed) |
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| Service temperature | approx. +450 °C continuous |
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| Corrosion characteristic | Good general corrosion resistance in atmosphere and fresh water |
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Specifications of Etched Sensor & Headlamp Vent Mesh Available in 304 Stainless Steel
| Part | Length (mm) | Width (mm) | Thickness (mm) | Hole diameter (mm) | Open area (%) | Function |
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| Vent u00d86 | 6 | 6 | 0.05 | 0.05 | 20 | Headlamp breather |
| Vent u00d810 | 10 | 10 | 0.08 | 0.08 | 24 | ECU / sensor housing |
| Rect 15 u00d7 5 | 15 | 5 | 0.08 | 0.08 | 24 | Camera / LiDAR housing |
Where 304 Stainless Steel Etched Sensor & Headlamp Vent Mesh Is Used
- Automotive lighting: headlamp and tail-lamp breather vents that prevent fogging.
- Vehicle electronics: ECU, inverter and sensor housings.
- ADAS sensors: camera and LiDAR housing vents.
- EV components: charge-port and battery junction-box vents.
Ordering Etched Sensor & Headlamp Vent Mesh in 304 Stainless Steel
- Size: Round Ø6–10 mm or rectangular patches to the housing port.
- Holes: 0.05–0.08 mm etched holes protect the membrane from stone and jet damage.
- Stack: Bond over an ePTFE membrane for IP67/IP69K performance.
Mistakes to Avoid with Etched Sensor & Headlamp Vent Mesh
- Using the mesh without a membrane, so water enters.
- Low-temperature adhesive that lets go under headlamp heat.
