Richard Gralnik on sat 31 may 97
Friends, Romans, Clayarters,
My kiln buidling project is moving into a new phase as I hang up my welding
helmet (temporarily at least. That sure is fun!) and get ready to paint the
kiln frame which is currently taking up most of my garage.
My question for any kiln builders or metal workers on the list is what kind
of paint and what method of application do you find works best for rust
prevention on an angle iron kiln frame?
Do you think it's necessary to use a hi-heat paint? If so, what temperature
rating do you find you need? Or is simple galvanizing paint good enough?
Or just a regular metal paint?
Thanks,
Richard
Louis Katz on sun 1 jun 97
Down here we use OsPho (sp) followed by rustolium (sp) . Seems to hold up
O.K. in all but the hottest locations.
Louis
BTW OsPho is some phosphoric acid preparation that comes in for rusty
metal. Permatex makes a variety of this stuff in combination with a
water based primer that is great for auto rust.
Louis
Louis Katz
Texas A&M University Corpus Campus
lkatz@falcon.tamucc.edu
http://www.tamucc.edu/~lkatz
Ray Carlton on sun 1 jun 97
At 10:14 AM 31/05/97 EDT, you wrote:
>----------------------------Original message----------------------------
>Friends, Romans, Clayarters,
>
>My kiln buidling project is moving into a new phase as I hang up my welding
>helmet (temporarily at least. That sure is fun!) and get ready to paint the
>kiln frame which is currently taking up most of my garage.
>
>My question for any kiln builders or metal workers on the list is what kind
>of paint and what method of application do you find works best for rust
>prevention on an angle iron kiln frame?
>
>Do you think it's necessary to use a hi-heat paint? If so, what temperature
>rating do you find you need? Or is simple galvanizing paint good enough?
>Or just a regular metal paint?
>
>Thanks,
>Richard
>
>hi richard found that red primer seems to be good as for heat proof paint
if flames get on it it will burn off whatever it is in my experience. you
can touch up the frame as the years go by with rust converter if you can
find the time
Ray Carlton McMahons Creek Victoria Australia
raycarlt@ozonline.com.au
Karl P. Platt on mon 2 jun 97
If the kiln frame at any point can experience temperatures above 500 F
or so, any prganic material will burn off and destroy the protective
film. This excludes the use of any common alkyd or latex paint.
High temp aluminum paints come in 2 flavors. One uses silicone as a
binding agent and these can be made to be resistent to somewhat higher
temperatures. Other silicone based high temp paints contain graphite
and/or lamp black. These, too can hold--up to 1,000 F or so.
The best thing to use is simply an Al paint which has a vehicle that
disappears -- there's nothing to burn/alter with heat.
Chemical treatments of the substrate aren't generally necessary.
However, the metal needs to be *CLEAN*. Otherwise you're simply putting
paint on dirt -- which is unstable form the start.
Paul Jay - Little Creek Fine Arts-Harmony, PA on mon 2 jun 97
Richard Gralnik wrote:
>
> ----------------------------Original message----------------------------
> Friends, Romans, Clayarters,
>
> My kiln buidling project is moving into a new phase as I hang up my welding
> helmet (temporarily at least. That sure is fun!) and get ready to paint the
> kiln frame which is currently taking up most of my garage.
>
> My question for any kiln builders or metal workers on the list is what kind
> of paint and what method of application do you find works best for rust
> prevention on an angle iron kiln frame?
>
> Do you think it's necessary to use a hi-heat paint? If so, what temperature
> rating do you find you need? Or is simple galvanizing paint good enough?
> Or just a regular metal paint?
>
> Thanks,
> Richard
Richard
There are two types of high heat paints I have used with some success: 1
the type you would use on barbeque grills that I bought at KMart; 2 the
type you spray on car moters that I bought at a parts store. Good luck
on your kiln.
Paul Jay
BobWicks@aol.com on tue 3 jun 97
Dick:
I have used Barb grill paint, usually black and it is heat resistant and
works if the temp is not too high.
Bob
Maggie & David on fri 13 jun 97
I'm still catching up on the hundreds of messages that I've let accumulate
so I hope whoever asked about painting a kiln frame still is interested in
info. Anyway, I used a high temperature paint that I got at the hardware
store that is meant to be used for wood stoves. It came in a spray can.
I've only fired the kiln a few times but it still looks like the day I
painted it. We put one of those magnetic stove thermometers on the sheet
metal face of the kiln (a 16 cu.ft propane fired updraft- Olsen kit) and I
don't think it's ever gotten over 300 degrees. Happy painting.
Maggie Shepard
FireWorks Pottery
Mt. Shasta, Calif.
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