Keep your microwave running safely and cleanly with our 5PCS Microwave Oven Insulation Pads, designed to simplify maintenance and protect your appliance from common damage. Whether you're replacing a cracked waveguide cover to prevent internal component damage, using a pad to catch messy splatters during heating, or maintaining a rental microwave to avoid security deposits, these mica sheets deliver the durability, versatility, and convenience you need.At the heart of these insulation pads' value is their role in microwave safety and longevity. The waveguide cover is a critical microwave part—it protects the magnetron (the component that generates microwave waves) from heat, moisture, and food debris. A broken or missing waveguide cover can cause the magnetron to overheat and fail, which is a costly repair. Our high-grade mica pads act as a direct replacement, shielding the magnetron while withstanding the microwave's extreme temperatures. For example, if your old waveguide cover cracks after years of use.Durability is tailored to microwave use, where heat and food exposure are constant. The mica material is chosen for its exceptional heat resistance is far higher than the maximum temperature inside a microwave, so the pad won't melt, warp, or release toxic fumes. Unlike thin paper-like waveguide covers that tear when cleaning, these super-thick pads (0.02 inches) are sturdy enough to wipe clean with a damp cloth repeatedly—no more replacing covers every month because they rip during cleaning. The smooth surface also resists food sticking: if sauce splatters on the pad, it wipes off easily, unlike baked-on food that adheres to microwave interiors and requires harsh scrubbing.