http://uv-curing-expert.com/en/tags/exposure/ Recent content in Exposure on UV Curing Expert Hugo en-us Tue, 23 Jun 2026 06:50:48 +0800 http://uv-curing-expert.com/en/posts/replacement-gallium-lamp-for-exposure/ Tue, 23 Jun 2026 06:50:48 +0800 http://uv-curing-expert.com/en/posts/replacement-gallium-lamp-for-exposure/ <p><img src="http://uv-curing-expert.com/images/53e5a79b9c4789b57e4bb2caec97aea5.png" alt="Replacement gallium lamp for exposure"></p> <p>On the press floor, exposure and curing aren’t theoretical. They’re the line between a clean cure and a tacky sheet, between keeping cycle time and scrapping the run. When a gallium lamp starts drifting, the spectral output shifts, peak irradiance falls off, and the photoinitiator response gets spotty. You see it immediately—pinholes, adhesion issues, color that won’t sit still.</p> <h3 id="what-actually-matters-under-the-hood">What actually matters under the hood</h3> <p>A replacement gallium lamp has to deliver repeatable spectral energy at the right wavelength. We build around a stable 365nm peak, with a narrow spectral envelope that matches the absorption band of the photoinitiators you’re running. Power density is engineered to hit the irradiance your reflector geometry is designed for, so energy density (mJ/cm²) across the substrate stays even. Output holds steady over life, with controlled degradation instead of a hard cliff. The quartz envelope and reflector alignment are set to keep focus and cut losses.</p>