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I Forge Iron

Coating a forge interior


Hammerfall

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This should be tagged as a must see topic at the top of the page as show me your forge, or how to apply a coating to the interior of your forge.

i started with 1" of kaowool. There were a lot of people talking about the wool falling and becoming deformed. Maybe a fair amount of people will search forge coatings and not be as intimidated as I was after googling and reading as much as I did. This was really easy. I laid out cardboard and plastic where I thought I might make a mess. It took about 20 seconds. I mixed up mizzou refractory coating until I liked the consistency. I laid my precut prewetted kaowool out flat. I wet it slightly so the adhesion between the mizzou and wool would be better and the wool was more malleable. I coated the wool and even hit the edges lightly to reduce loose fibers and to promote later adhesion. Once a nice coat was evenly spread I folded it up and slapped it in the forge. EZ peezy. I then set the forge on its end for 15 or 20 minutes. It firmed up enough that I set the forge as it will be used and started filling the seam where the wool came together. I built this up at the bottom, as I had initially planned on putting a firebrick in the bottom of the forge. After some reading I'm going to forge as is for now, without a firebrick as a floor.  Mizzou is supposed to be very flux resistant. We will see. I'm open to criticism so please chim in any time. I was worried about uneven heating because the bottom will be thicker, it decided to roll the dice. It's curing right now and maybe tomorrow I will get to fore it up a few times. I just thought I'd share. Let the hammer fall.

IMG_2878.JPG

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Looks good to me, no expert by any means.  I used 2" Kaowool lining, and did a thin coating of Meeco's Red Devil 610.  and glued the Wool to the shell using Furnace Mortar, haven't seen any slumping or deformation at all.  I Don't know if many people use the Meecos, It is very brittle once its heated but I love the fact that it has no set or cure time, can line the wool and fire the forge to bake it in.  My floor i used 1" Kaowool under a 3/8" Kiln shelf and once I got my burner built properly it gets yellow hot in about 5-10 minutes.  I'd like to know how yours is working out, I just barely started and have built 2 forges because my first was absolutely massive and wouldn't heat up.  Can always use ideas for improvement!

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Looks good so far. Looks a lot better than my first. I don't however see where you intend to put your burner.

If I'm getting this correctly, it's a 5" ID pipe 10" long, with 1" wool all the way around. So it's roughly a 3"x10" hole? 

Do you have a specific intended purpose for this forge? Only reason I'm asking is because I'm running into the issue of not being able to fit larger things into my forge and when I do, I have to do relief bends. One to get it in the forge then another to work whatever section needs it and repeat. It's definitely doable but kind of annoying. 

 

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Looks pretty good Wiz. If you k now any flooring contractors or stores close by you can pick up linoleum scraps which makes excellent mold material for forges. Roll a length up shiny side out and use it as a form. Wrap the plastered blanket over the form and hold it in place with tape on the seam and slip it in the shell.

I made my second double lined propane forge like this though I used Sonotube (concrete form), the first try didn't work.

Well done Wiz. Carry on. :)

Frosty The Lucky.

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Halphwit the forge chamber is 10x5, meaning the open part. I wanted a good size interior for general forging. The overall dimensions are larger. I fired it tonight for a bit over an hour and put firebricks over the ends to let I'd cool down very slowly. Tomorrow I will fire it again at around 500 and repeat the process if I think it's necessary. It is holding up well and seems to be really solid. 

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I fired it up tonight. Once it was hot it worked really well. It took a while to get to temperature, but after that is was amazing. I only did two heat cycles. I'll keep everyone posted on how it lasts. I'm starting to think everyone makes building and lining a forge much more complex and technical than it really is to accomplish.

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