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I have a small area in side my microwave that shows gray metal where the paint came off/s this dangerous?

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It can lead to rust, which can eventually lead to leakage, so it should be fixed.

If the cavity metal of the oven is chipped or charred, it will have to be sanded smooth and clean and dried thoroughly.

Then you can apply some high-temperature appliance paint, available from places like Wal-Mart, Lowe's or Builder's Square.

We're happy to help and we appreciate your thoughtful rating of our answer.

Posted on Apr 23, 2008

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My oven sparks from the metal plate on the side.


Check to see if there is any rust or cracks in the coating that came from the factory. Some microwaves use metal underneath an epoxy type coating and if it is exposed, it can cause an arc from the microwave generator. If there are any defects in the surface, it can be sanded down and you can purchase a can of interior microwave paint and put a coat of paint over the defective area. Also look for any exposed metal in the area of the sparks, there should no metal exsposed anywhere, if it is, cover it with the paint. hope this helps.

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Was cleaning inside of microwave and noticed the paint was bubbled and when I cleaned this area, all paint came off and metal was exposed 9about a 2 inch area). Should I use the microwave or will arching...


Hi Bonnie,

Do not use the microwave with the exposed metal surface.

What you can do is pick up some appliance touch up paint, it comes in a small plastic bottle with a brush. It looks similar to fingernail polish. It should be available at an appliance store such as Sears, Lowes, Home Depot etc.

Clean the area good and use sandpaper or steel wool if needed to make sure the area is smooth and clean. Then use the touch up paint to recoat the surface. Let dry before using the microwave oven, usually a couple hours or so.

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Paint damaged in side microwave oven


1) How is the cavity damaged? Is it just peeling paint, or is it rust? If it's rust then the microwave could be dangerous.

2) The antenna cap usually has a small hole in the centre, but if there are any other holes in it the magnetron itself could be damaged, and holes caused by the magnetrin arcing.

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Paint off inside top of microwave exposing metal. Safe to use?


It would be dangerous to do so. Any exposed metal inside a microwave is source for sparks and is extremely hazardous. I would recommend getting the paint job done up, or even better, buy a newer model.

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If the mocrowave still working, I wouldn't worry about operating it. If you want to have some peace of mind you can buy the paint and do it yourself. Go HERE to get the paint that is specially for microwaves use.

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Peeling paint


The only real danger is if it continues, it can deteriorate the metal, allowing sparking and possible leakage.

It's a good idea to clean, sand, clean again and repaint the area.

High temperature appliance paint is available form stores like Lowe's and Wal-Mart.

We're happy to help and we appreciate your thoughtful rating of our answer.

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