Unfortunately from my experience, once you can see rust inside it the rust
has spread under the existing paint and although the machine will probably
go on for ages, it looks naff and paint bits come off as you clean it. Much
like other things you would need to take it apart and treat all the rusty
bits and remove the loose paint. The paint I understand is some king of
stove enamel put on when the parts were manufactured, so really you might
end up with a lot of expense and decide to get a new one or use it as is
until it starts to give issues.
My last one went on the bend of the door as it was bottom hinged and it
started to leak microwaves there. It was a Swedish made Philips as I recall
Just crap applied paint.
Brian

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This newsgroup posting comes to you directly from...
The Sofa of Brian Gaff...

Blind user, so no pictures please!
"ss" wrote in message
...
I have a couple of rust spots inside microwave, 3 years old so should last
a bit more.
Any ideas on what type of paint I could use to touch it up.
Rust about 3 x 1 cms size.