http://indoor-ir-net.com/en/tags/powder/ Recent content in Powder on Indoor IR Heating Network Hugo en-us Wed, 02 Sep 2026 20:42:25 +0800 http://indoor-ir-net.com/en/posts/preventing-surface-skinning-in-aluminum-wheel-curing-via-shortwave-ir-penetration/ Wed, 02 Sep 2026 20:42:25 +0800 http://indoor-ir-net.com/en/posts/preventing-surface-skinning-in-aluminum-wheel-curing-via-shortwave-ir-penetration/ <p><img src="http://indoor-ir-net.com/images/b5d9fb0e827efc0a8c4fc4c9ad3d9af6.png" alt="Preventing Surface Skinning in Aluminum Wheel Curing via Shortwave IR Penetration"></p> <h1 id="stop-the-skinning-problem-on-aluminum-wheels">Stop the &ldquo;Skinning&rdquo; Problem on Aluminum Wheels</h1> <p>If you&rsquo;ve ever used a standard convection oven to cure powder-coated aluminum wheels, you know the frustration. The surface heats up way too fast, creating this hard &ldquo;skin&rdquo; or crust on top. Here&rsquo;s the problem: once that skin locks in, it traps all the solvents and gases underneath. You end up with those annoying pinholes and bubbles. Or worse, the finish looks polished and pretty, but it doesn&rsquo;t actually stick to the wheel. We fixed this by switching to shortwave infrared (SWIR) lamps.</p>