How to Stop Brake Squeal Using Infrared Curing
Ever wonder why some brake pads just won’t stop squealing? Usually, it comes down to how they were cured. In a lot of setups, the surface hardens way too fast, leaving the core under-cured. That creates a mess of internal stress and weird density spots. We found a better way: ditch the old convection ovens and go with shortwave infrared (IR) emitters. The secret is how the heat actually moves. Convection is basically just heating up air and hoping it eventually warms the part. For dense friction materials, that’s just too slow. Shortwave IR is different. It doesn’t wait around. The radiation sinks deep into the material, heating the core and the surface at the same time. You end up with a pad that’s cured evenly all the way through. To make this work, we use high-wattage quartz emitters. These lamps pack enough punch to trigger the chemical bonding in the resins without burning the outside to a crisp. One thing to watch out for: your lamp specs need to match your line speed. If you want to move faster, you need more wattage. But don’t forget your cooling fans. If the housing gets too hot, those quartz lamps can crack, and that’s a headache nobody wants. Getting it onto the shop floor is the easy part. We designed these emitters to be “drop-in” replacements. We use standard connectors, so if a lamp burns out, you can swap it in a few minutes and get back to work. No need to rewire the whole rack. We also tune the IR wavelength to match the specific resins you’re using. This makes sure the energy actually goes into the material rather than just bouncing off. When the material cures evenly, the friction coefficient stays steady. That’s what kills the vibration and stops the noise. Just remember—IR is all about line-of-sight. If your parts are stacked or something is blocking the path, you’ll get cold spots. Just position your lamps so they have a clear shot at every single pad.