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.

On 1/12/2017 9:36 PM, ss wrote:
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.

Why?

On 12/01/2017 22:13, newshound wrote:
On 1/12/2017 9:36 PM, ss wrote:
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.

Why?
Because SHE will buy another microwave if I dont get rid of the rust!
It works perfectly well.

On Thu, 12 Jan 2017 21:36:50 +0000, ss wrote:

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.

You can buy special microwave paint, Google for it.
It's probably the same as car paint or something, who knows?

The best advice I can give is when you replace your microwave, do what
I did and choose one with a stainless steel cooking cavity.



--

Graham.

%Profound_observation%

"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.

What is used on cars should be fine.

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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"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.

It does beg the question what has been used to clean it of course and
whether it was left wet with a corrosive substance on it.
Brian

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"newshound" wrote in message
o.uk...
On 1/12/2017 9:36 PM, ss wrote:
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.

Why?

Chuckle however not all stainless steel is also going to be rust proof. Most
these days are some kind of alloy.

I guess if somebody wanted to experiment, a bit of a sand down and a touch
up might work, but not for long.

Brian

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"Graham." wrote in message
...
On Thu, 12 Jan 2017 21:36:50 +0000, ss wrote:

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.

You can buy special microwave paint, Google for it.
It's probably the same as car paint or something, who knows?

The best advice I can give is when you replace your microwave, do what
I did and choose one with a stainless steel cooking cavity.



--

Graham.

%Profound_observation%

In article ,
Brian Gaff wrote:
Chuckle however not all stainless steel is also goinG to be rust proof.
Most these days are some kind of alloy.

All steels are alloys: Iron and other things

--
from KT24 in Surrey, England

Brian Gaff wrote

Chuckle however not all stainless steel is also going to
be rust proof. Most these days are some kind of alloy.

*ALL* stainless steel is an alloy.

Not all stainless steels are rust proof.

I guess if somebody wanted to experiment, a bit of a
sand down and a touch up might work, but not for long.

"Graham." wrote in message
...
On Thu, 12 Jan 2017 21:36:50 +0000, ss wrote:

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.

You can buy special microwave paint, Google for it.
It's probably the same as car paint or something, who knows?

The best advice I can give is when you replace your microwave, do what
I did and choose one with a stainless steel cooking cavity.



--

Graham.

%Profound_observation%

Tim Streater wrote:
In article , charles
wrote:

In article ,
Brian Gaff wrote:
Chuckle however not all stainless steel is also goinG to be rust proof.
Most these days are some kind of alloy.

All steels are alloys: Iron and other things

I would have thought all stainless steel is going to be rustproof.
That's rather the point, isn't it?

Yes. However the level of rustproofness will depend on the particular
alloy. The two common stainless steel 'types' are A2 and A4. A2 is
general purpose and is fine for most inland domestic use, A4 is more
rust resistant and is aimed at marine use and such.

Any stainless will rust in certain situations, in particular it will
often rust when touching rusting non-stainless steel.

--
Chris Green
·

On 13/01/2017 09:01, charles wrote:
In article ,
Brian Gaff wrote:
Chuckle however not all stainless steel is also goinG to be rust proof.
Most these days are some kind of alloy.

All steels are alloys: Iron and other things

Notably stainless if it contains more than a certain percentage of
chromium. It was invented discovered more than once but it was Brearley
in Sheffield who is usually credited. He was looking for improved gun
barrels. German inventors had some prior art with a 21% Cr 7% Ni steel.

http://www.estainlesssteel.com/histo...esssteel.shtml

Slightly longer and more detailed version here

http://www.bssa.org.uk/about_stainless_steel.php?id=31

Basically he accidentally made a batch he couldn't etch!

--
Regards,
Martin Brown

On 13/01/2017 08:51, Brian Gaff wrote:
Chuckle however not all stainless steel is also going to be rust proof. Most
these days are some kind of alloy.

I think the only stainless that rusts in common use is for saucepans so
that they work on induction hobs.
It appears its quite expensive to make rust proof and magnetic.
Some better pans have three layers so the magnetic stainless is wrapped
in rust proof stainless.

The alloy pans I have have a steel base fitted but they don't work as
well as the three layer stainless ones do. You can boil water quicker in
the better ones so there must be something restricting the power input
on the alloy pans.

In article ,
ss writes:
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.

A rusted microwave (inside the oven, or outside) will usually be
a PAT test failure, because of the possibility of microwave leakage.
If you can clean up the metal sufficiently to show it's not rusted
through and then protect it again, you'll probably be OK, but that's
never worth doing commercially. If the rust is at a seam, then
forget about repairing it, because you will never be able to make
the seal sufficiently electrically conducting again to prevent
leakage.

--
Andrew Gabriel
[email address is not usable -- followup in the newsgroup]

In article ,
Chris Green writes:
Tim Streater wrote:
In article , charles
wrote:

In article ,
Brian Gaff wrote:
Chuckle however not all stainless steel is also goinG to be rust proof.
Most these days are some kind of alloy.

All steels are alloys: Iron and other things

I would have thought all stainless steel is going to be rustproof.
That's rather the point, isn't it?

Yes. However the level of rustproofness will depend on the particular
alloy. The two common stainless steel 'types' are A2 and A4. A2 is
general purpose and is fine for most inland domestic use, A4 is more
rust resistant and is aimed at marine use and such.

Any stainless will rust in certain situations, in particular it will
often rust when touching rusting non-stainless steel.

Also, it is only stainless in the presence of oxygen, to form the
chromium oxide protective layer. Without that, the iron in it will
corrode. Things that strip the chromium oxide protective layer will
also allow it to corrode.

--
Andrew Gabriel
[email address is not usable -- followup in the newsgroup]

In article . com,
dennis@home writes:
I think the only stainless that rusts in common use is for saucepans so
that they work on induction hobs.
It appears its quite expensive to make rust proof and magnetic.
Some better pans have three layers so the magnetic stainless is wrapped
in rust proof stainless.

The alloy pans I have have a steel base fitted but they don't work as
well as the three layer stainless ones do. You can boil water quicker in
the better ones so there must be something restricting the power input
on the alloy pans.

Making pan bases is an interesting challenge.

Stainless steel is a nice finish, but it's a poor heat conductor which
can lead to uneven heating and hot spots with many types of hob, and
it doesn't work well (or in some cases, at all) with induction hobs.

Aluminium is a very good heat conductor for even heat with no hot spots,
but is not a good surface finish (unless teflon coated or similar), and
won't work with induction hobs.

Copper - same as for aluminium, but no use as a surface finish.

Iron/steel is good for picking up heat from induction hobs, but is not
a good heat conductor, so it needs a thick/heavy base or you will get
hot spots, and not good as a finish so has to be enamaled.

Since none of them is good in all cases, good pans are forced to have
multi-layer bases - typically stainless steel inside surface (or teflon
coated aluminium), with an aluminium or copper heat spreader on the base,
and for induction hobs, a steal layer to pick up the induction heating.
The layers, which expand differently when heated, need to be well bonded
to conduct heat through. (They do occasionally come apart.)

--
Andrew Gabriel
[email address is not usable -- followup in the newsgroup]

On Thursday, 12 January 2017 21:37:00 UTC, ss wrote:
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.

Any solvent based metal paint, even old humbrol enamels.


NT

"Graham." wrote in message
...
On Thu, 12 Jan 2017 21:36:50 +0000, ss wrote:

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.

You can buy special microwave paint, Google for it.
It's probably the same as car paint or something, who knows?

The best advice I can give is when you replace your microwave, do what
I did and choose one with a stainless steel cooking cavity.

Mine hasn't rusted in 40+ years and gets used most days.

On 12/01/2017 22:56, Graham. wrote:
On Thu, 12 Jan 2017 21:36:50 +0000, ss wrote:

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.

You can buy special microwave paint, Google for it.
It's probably the same as car paint or something, who knows?

The best advice I can give is when you replace your microwave, do what
I did and choose one with a stainless steel cooking cavity.

I leave the door open to dry out after use.

--
Max Demian

On 12/01/2017 22:56, Graham. wrote:
On Thu, 12 Jan 2017 21:36:50 +0000, ss wrote:

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.

You can buy special microwave paint, Google for it.
It's probably the same as car paint or something, who knows?

The best advice I can give is when you replace your microwave, do what
I did and choose one with a stainless steel cooking cavity.


+1

When looking at the models with stainless steel inners also select the
one with the fewest number of 'ventilation' holes - some seem to have
fully perforated panels on all sides as well as the top while others
have small areas of perforations making cleaning less of a chore.

And if its microwave only, consider buying one of those large microwave
splash guards - when something explodes it mainly only covers the inside
of the guard which can easily be washed.



--
mailto: news {at} admac {dot] myzen {dot} co {dot} uk

On 1/12/2017 10:55 PM, ss wrote:
On 12/01/2017 22:13, newshound wrote:
On 1/12/2017 9:36 PM, ss wrote:
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.

Why?
Because SHE will buy another microwave if I dont get rid of the rust!
It works perfectly well.

My sympathies! Evidently it's not stainless, then? If it was an
expensive one, it might be worth going back to the supplier. I recently
had a good result from Amazon when a TV failed at 5 years, apparently
the "accepted" life for TV's is 6 years, and after one phone call to
them and another to a service centre, and then a firmly worded (but not
rude or aggressive) email they gave me something like a 15% discount on
a new one.

On 1/14/2017 6:11 PM, Andrew Gabriel wrote:
In article . com,
dennis@home writes:
I think the only stainless that rusts in common use is for saucepans so
that they work on induction hobs.
It appears its quite expensive to make rust proof and magnetic.
Some better pans have three layers so the magnetic stainless is wrapped
in rust proof stainless.

The alloy pans I have have a steel base fitted but they don't work as
well as the three layer stainless ones do. You can boil water quicker in
the better ones so there must be something restricting the power input
on the alloy pans.

Making pan bases is an interesting challenge.

Stainless steel is a nice finish, but it's a poor heat conductor which
can lead to uneven heating and hot spots with many types of hob, and
it doesn't work well (or in some cases, at all) with induction hobs.

Aluminium is a very good heat conductor for even heat with no hot spots,
but is not a good surface finish (unless teflon coated or similar), and
won't work with induction hobs.

Copper - same as for aluminium, but no use as a surface finish.

Iron/steel is good for picking up heat from induction hobs, but is not
a good heat conductor, so it needs a thick/heavy base or you will get
hot spots, and not good as a finish so has to be enamaled.

Since none of them is good in all cases, good pans are forced to have
multi-layer bases - typically stainless steel inside surface (or teflon
coated aluminium), with an aluminium or copper heat spreader on the base,
and for induction hobs, a steal layer to pick up the induction heating.
The layers, which expand differently when heated, need to be well bonded
to conduct heat through. (They do occasionally come apart.)


Can't beat the traditional heavy copper pan with a tinned inside! They
don't come apart. (No good for induction, I guess).

Coatings have got very much better, though. I have a lovely big cast
aluminium pan from Lidl, with a (so far) very tough coating. A third of
the weight of Le Creuset, and much quicker and more even heating, no
problem with burning.

Rust on a microwave is extremely flammable! We didn't notice the rust on ours until there was a fire.

--
For full context, visit https://www.homeownershub.com/uk-diy...e-1183158-.htm

Really? Not on our old Philips the door fell off one day due to tin worm,
Was it perhaps made of aluminium not steel?
Brian

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"Kgdw" wrote in message
groupdirect.com...
Rust on a microwave is extremely flammable! We didn't notice the rust on
ours until there was a fire.

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For full context, visit
https://www.homeownershub.com/uk-diy...e-1183158-.htm

Just replaced our microwave oven today, I was looking for one with a SS cavity but after applying other filters for power, size, capacity and colour I could not find one with a SS cavity, so it is a grey enamel cavity but at least that answers the type of paint used.

Richard

Yes when i saw where the message came from I did wonder if the sender was
dead by now. It might have been that rare reply, one actually within living
memory.
Brian

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"Tricky Dicky" wrote in message
...
Just replaced our microwave oven today, I was looking for one with a SS
cavity but after applying other filters for power, size, capacity and colour
I could not find one with a SS cavity, so it is a grey enamel cavity but at
least that answers the type of paint used.

Richard