Why your temp gun is lying to you about your glass
Ever tried using a standard infrared thermometer on glass and got a reading that made zero sense? It’s frustrating. You’re looking right at the material, but the sensor isn’t. See, glass is a bit of a trickster—it’s semi-transparent to most IR wavelengths. Instead of reading the surface, a generic sensor just shoots right through the glass and picks up heat from whatever is sitting behind it. You aren’t measuring your product; you’re measuring the background. We fix this by getting specific. Hitting the right spot Every type of glass—whether it’s borosilicate, soda-lime, or something more exotic—has its own chemistry. Those additives create “absorption peaks,” which are basically tiny windows where the glass actually stops the IR radiation instead of letting it pass through. We build our sensors to target those exact windows. By matching the filter to your specific glass recipe, the sensor finally sees the surface as a solid object. No more ghost readings. No more guessing. No “off-the-shelf” shortcuts We don’t do generic filters. For high-end research, that just doesn’t cut it. We customize a narrow-band filter for you that ignores the noise and atmospheric interference. You get a reading based on the actual surface emission. One heads-up: this relies on the chemistry of your melt. If you change your additive concentration, the emissivity shifts. When that happens, you’ll need to recalibrate the device to keep things accurate. The trade-off Here is the honest part: you can’t have it all. When we tune a tool for pinpoint precision on one specific doped glass, it loses its versatility. A gun tuned for your specialty glass won’t work on clear float glass. You’re trading that “do-everything” range for a tool that actually tells you the truth about your specific material. Just keep an eye on your process temps. If you push way past the filter’s design limit, the spectral shift can kick in and your readings will start to drift. Stay within the window, and you’re golden.