This universal cut-to-fit mica waveguide cover is a practical aftermarket replacement spare part for most household microwave ovens, designed to reduce sparking and arcing inside the microwave cavity.
Product Information
Material: High heat-resistant mica
Blank Sheet Size: 150 mm × 120 mm / 5.9 in × 4.8 in
Application: Installed on the right or upper inner wall of microwave cavity to shield internal components
Compatibility: Fits most mainstream microwave brands including LG, Samsung, GE, Sharp, Whirlpool, Kenmore and more.
Signs You Need A New Waveguide Cover
If your microwave produces sparks or electric arcing during operation, remove the original waveguide sheet for inspection. Replace the sheet once it turns dark brown or black, or develops cracks and holes.
Simple DIY Cutting & Installation Steps
Remove the old waveguide cover and lay it flat on the new mica sheet as a template
Mark the edge outline with a sharp craft knife
Cut straight edges with sharp scissors, then trim rounded corners Drill matching screw holes if your original cover has mounting slots
Mount the new mica sheet into the waveguide position to complete replacement
Warm Tips
The blank sheet is made with extra margin for trimming, please check your original cover size before ordering
Cut the mica sheet on a scratch-resistant surface for cleaner edges Regularly wipe off food splatters inside the microwave to slow wear of the mica cover
This is an aftermarket replacement part, not OEM factory original accessory