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Stilldrillin

Curing VHT Paint.

I`ve bought some Simoniz VHT paint for my Mamod firebox.

As there will be very little volume of paint used......
Is it "safe" to cure in SWMBO`s oven?

Meaning, is there much of a smell? Worse than a kitchen steam up?  

My future happiness may be in your hands.......  
tmuir

I bake all my painting in the kitchen oven.

When you are baking there is a little bit of a smell but it soon disappears and I've yet to have a VHT flavoured roast.  

But saying that I always bake the paint either in the middle of the day or after dinner so the ovan gets plenty of time to lose the paint smell before food is put into it.

My bedroom is directly over my kitchen and whilst the paint is baking I get a slight smell in my room but almost none in the kitchen.
Spokey

Rather than summon the wrath of her indoors for stinking out the oven, I tend to stick mine in front of a fan heater in the garage for a while.

Spokey
MamodFan

i tried it at home once, never again, i didn't think it smelled that bad but she who must be obeyed did so i have been forced to use the oven at work
tmuir

I've got my wife trained well.
Got her to put up with smouldering charcoal and burnt flux before I started painting, she was willing to put up with that as it was part of the process of making her gold and silver jewellery.  
IndianaRog

Just use the kitchen oven on a day the doors and windows can be opened up and ventilation fan run...be sure you put the parts on a metal tray and handle the metal tray with oven mitts...

YES, it stinks,but it's manageable....better done when the missus is on an extended time out of the house none the less.

cheers,
Rog
tmuir

Rog I just remove all the shelves except the top one and hang the parts with steel wire that way I don't have to worry about the paint getting too hot where it touches the tray
johnreid

Quote:
better done when the missus is on an extended time out of the house none the less.


That could be a bit expensive though.
mc_mc

Any one impatient tried the microwave?
MamodFan

mc_mc wrote:
Any one impatient tried the microwave?
                         
Mamodman123

I did it when mum went out.... oh and when dad wasn't in  
Atticman

Im lucky, cos Mrs Attic has lost her sense of smell completely.

Saves a few bob on fragrances too    
steamgranny

Situation is reversed here & Iím the one creating the stink, converting half the dining room into a workshop at times & getting the funny looks & muttered remarks. Donít think my bedroom exactly qualifies as a genteel ladies boudoir, either      
Stitch

After I have cured the engine I cut a lemon in half and place in the still warm oven - gets rid of the odours very quickly.
Stilldrillin

Thanks everyone, some nice ideas/ reassurance there.

BUT, She Who Must Be Feared has read all posts..... With no changing of ideas.
I`m also now informed, we don`t like draining board mini steamings either!  

I like Spokey`s idea of an initial cure by fan heater.
Also, I have an old paraffin pressure stove. I could hang items above it to finish off curing.    
Mark-One

I can't help but notice that you've gone from She Who Must Be Obeyed, to She Who Must be Feared  
Stilldrillin

Mister Occlusion wrote:
I can't help but notice that you've gone from She Who Must Be Obeyed, to She Who Must be Feared  


At times, yes.
Almost 40yrs together...... I still proceed with caution.
johnreid

I once knew someone who baked small painted parts and he bought a small oven, used, and put it in his garage.
mc_mc

You could get something like this:  
http://cgi.ebay.co.uk/Sabichi-Min...PageNameZWDVWQQrdZ1QQcmdZViewItem

There's plenty of that sort of thing to choose from on eBay (just search for mini oven) and at £25ish might be worth saving the harassment from the other half.  
Cranko

mc_mc wrote:
Any one impatient tried the microwave?
I hope your joking mcmc  
Me

I am lucky

I am so lucky my wife of 1 year is happy that i play with my steam engines it gets me off her back so she puts up with the funny smells.

Quote:
Mister Occlusion wrote:
I can't help but notice that you've gone from She Who Must Be Obeyed, to She Who Must be Feared

At times, yes.
Almost 40yrs together...... I still proceed with caution.


But it is still early days i will get back  to yous in 30 to 40 years and see what she thinks then.

me
Stilldrillin

Re: I am lucky

Me wrote:
But it is still early days i will get back  to yous in 30 to 40 years and see what she thinks then.
me


I hope I am still able to communicate with you, in 30 to 40 years time.

And I hope by then, your marriage is just as happy as ours is.
Graham-Jilly

I gues im Lucky cause jilly loves to tinker with steam and doesnt mind the smells
big d

how long do you put it in the oven for
IndianaRog

My VHT satin black paint recommended the following 3 step oven curing process after paint was dry:

1) 30 min in oven at 200 deg. F...then cool for 30 min.

2) 30 min in oven at 400 deg. F...then cool for 30 min.

3) 30 min in oven at 600 deg. F...done

Since our home oven only went to 550 deg. F...I let it go for 60 min. at 550 deg. F for the third step.

Finish is hard, stands up to firebox flame and is meths proof too.

Good stuff, but kind of stinks during curing phase, so need to do when you can open kitchen windows.

cheers,
Rog
flywheel61

Yes, I did the same and got a good result.  The first time I did it I forgot the paint came from the US and cooked it a Centigrade instead of Farenheit, the standard red went the colour of dried blood & I had a hell of a time getting it back off,     .

Cheers    

Chris
Nick

I just noticed in a different thread that Reid uses a toaster oven for baking painted parts.

I have been wanting to bake some painted parts, but never wanted the smell in the kitchen.

You can buy a new toaster oven for under $40 and I could get a used one at goodwill/salvation
army/garage sale for under $10. Is this something I should buy?

I saw that Reid's was at 425 degrees and I'm sure you can get them hotter. I am really
considering this, because then I could plug it in out in my garage or outside. Any suggestions?
Nick

Here's an image "stolen" from Reid's thread:

Les

ncseverson wrote:
I just noticed in a different thread that Reid uses a toaster oven for baking painted parts.

I have been wanting to bake some painted parts, but never wanted the smell in the kitchen.

You can buy a new toaster oven for under $40 and I could get a used one at goodwill/salvation
army/garage sale for under $10. Is this something I should buy?

I saw that Reid's was at 425 degrees and I'm sure you can get them hotter. I am really
considering this, because then I could plug it in out in my garage or outside. Any suggestions?


Buy one.
Reid

I am going to guess that if you can find a good old convection oven
that will be a lot faster than a plain oven, as it works by blowing heated air through the oven box.

It is important to remember (and I remind myself) that if sufficient solvent were to flash off in the baking phase, like if you put really wet paint in there,
the oven can certainly explode.

The small oven I am using is on loan to me from my stepdad, who likes gadget ovens--it's six years old and was never used but once or twice before.

I really like this little white Cuisinart convection oven:
for the digital "exact temperature" display.

It dings a chime when the oven reaches the preset temperture.
When it's turned on it defaults to 150F, a good safe temperature for beginning the bake of solvent-fat parts.

And it has a timer you can set for as many hours as you like,
or you can omit setting the timer and just let it run indefinitely.

I don't know how much such an oven costs but even a toaster oven
will work.

However, the convection oven makes no hot spots.

Say you are baking a firebox and you have a radiant element oven (regular oven),
and it's a tiny oven, a small toaster oven,

you see you have the inconvenience of uneven heating when the element is heating.

just my thoughts---I've never used these small ovens before the other day;
I used to always use the full sized oven in the kitchen--
it happens to have a fan powered vent taking fumes fully outdoors.

But this white convection oven is better!  I can have it out here in the workshop with me and
Ernie no longer gets peeved by my using the big oven that he never ever bakes in;
it's only used for storing pots and pans, lol, true!
Nick

All they had at the thrift stores were the regular toaster ovens.

I went to Wal-mart and they have a large, two rack convection oven by Black & Decker, that goes up to 450 degrees F. for $39.95. I may pick that one up or search the classifieds.

I don't think I am going to find a used convection one cheap enough, so I might be better off getting the one at Wal-mart. Is 450 degrees F hot enough?
johnreid

My Microwave is also a Convection Oven.
Nick

How hot does it need to get for curing paint?
Les

ncseverson wrote:
How hot does it need to get for curing paint?


I think that depends on the instructions on the tin.
Reid

450F is surely hot enough for my needs,

and while I'm not at present working with VHT paint,
this japan black stuff is consuming my whats (watts)

example:  what's the best baking temp for gilsonite varnish?
This AM I'm reading old books online I never saw before.
It appears that I can bake at 250 for 4 hours, or 300F for 2 hours;
the advantage of the somewhat lower temperatures being, I don't lose elasticity of the varnish by high temp baking.


Short answer: I suppose 450F is plenty hot enough for all but the specialty exhaust header paints.


$40 sounds like a great price Nick!
an oven thermometer and you're good to go!
Nick

Here's the $40 one, what do you guys think?

http://www.walmart.com/catalog/product.do?product_id=6528821

The reviews look good, except for 2 people have had the timer malfunction. Not a big concern for me.
Les

ncseverson wrote:
Here's the $40 one, what do you guys think?

http://www.walmart.com/catalog/product.do?product_id=6528821

The reviews look good, except for 2 people have had the timer malfunction. Not a big concern for me.


If it is big enough to fit the parts you need to put in there, and it does the temperatures you need, then go for it.
johnreid

Put it next to your freezer, then you can cook your dinner an not have to leave your Steamers!


I run mine on the kitchen table
Nick

I might pick it up in a day or two, I really like it. I looked at it in the store an it was very good size.
Bubba

Nick

This is a convection oven for only $40. I will only be doing small parts, and I'll plug it in outside. It should work very well for me.
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