1. CLEAN — Remove grease and old food
2. SCRAPE and SAND — Remove loose paint and rust
3. PAINT — Mask edges and apply special paint. You can buy the Microwave Cavity Paint here.
4. Add a SILICONE MAT — place a silicone mat on the microwave’s floor for the wheels to ride on. This protects the paint from the grinding wheels. You simply cut out a hole in the center of the mat. You can buy the mat here.
OPTIONAL: I went a bit overboard and replaced the roller wheel. I bought the wheel here.
The paint inside my microwave had been gradually blistering and peeling for a long time. I finally decided to re-paint it.
I made two videos showing how to paint inside a microwave:
Paper bags/newspaper/whatever you have
2 mil plastic sheet, like this
Cardboard boxes (to cover floor)
NOTE: put used paper towels outdoors to dry, when dry place in the trash
NOTE about SANDPAPER:
coarse = 100 grit, medium = 150, fine = 220, very fine = 400 to 600
Unplug or turn off power at circuit breaker panel (to turn off light)
Set up an exhaust fan (to remove odors)
Shake thoroughly (at least 2 minutes with ball moving)
Turn nozzle to align nozzle with mark on rim
Test on waste material (for best distance and coverage)
Paint microwave with several light coats
Let paint become tacky between coats
If paint bubbles
Let paint dry completely, then sand smooth and repaint with lighter coats
If you have a hot spot, let dry, then paint more light layers there
If paint bubbles, sand down, then repaint
Reinstall carousel turntable and glass plate
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