Rapid sealant curing for glass

Sun, 28 Jun 2026 06:31:57 +0800

Out on the line, IG output grinds to a halt when sealant cure takes too long. Convection ovens are slow, and the heat is uneven—edges under-cured, centers overheated. That’s a straight path to adhesion problems and callbacks. We built a rapid sealant curing module to cut through that bottleneck, putting controlled energy right where it matters: the secondary seal. We run short-wave infrared emitters tuned to match the emissivity of silicone and polysulphide sealants. The heating is fast and volumetric, pushing the cure front along without soaking the whole frame. That focused thermal profile also cuts thermal stress on the glass edge—the same kind that shows up as spontaneous fracture after tempering. The module drops into standard IG assembly lines. Each bank draws 12 kW, and we offer voltage options to match your plant’s power setup. Expect cure time to drop 30–50%, which translates straight into higher line velocity. In day-to-day operation, you get adhesion you can count on, tighter tolerances, and fewer rejects. Energy use falls because we’re heating the sealant, not the air around it. Component life improves too: the emitters run cooler than the target temperature, and the housing is built to handle dust and mist. Maintenance stretches out, downtime shrinks, and overall equipment effectiveness climbs. Installation is straightforward, but alignment is where you earn it. The beam has to be squared to the spacer, and the distance set so intensity stays uniform across the entire seal. Keep the emitter window clean—coating overspray and sealant mist will kill output fast. For the cleanest performance, tie in a closed-loop temperature sensor at the seal line to compensate when line speed changes or ambient conditions shift.

Curing on Primary IR Heating Source

Rapid sealant curing for glass