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Thread: HT ovens for big Knives and Swords

  1. #11
    Registered Member Danil's Avatar
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    Is this the right stuff for coating my ceramic fibre insulation?
    http://www.unifrax.com.au/prodsheets...g%20Cement.pdf
    Or do I need actual rigidizer stuff?

  2. #12
    Registered Member Danil's Avatar
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    Quote Originally Posted by Jez View Post
    That propane tank looks like it will make an awesome forge.
    Trust me, that ceramic fibre insulation is amazing stuff.

    Don't forget to post a picture of the forge when it's done.
    This is going to be my first build so it probably won't look to good once its all done and it will probably take a while to build because I don't have all the tools at my place.
    Last edited by Danil; 27-02-2017 at 19:06.

  3. #13
    Registered Member Danil's Avatar
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    I got a price for some ceramic coating the stuff in the link 2 posts back and 4 litres is about $130. Is this normal, because it seems very expensive.

  4. #14
    Australian Knifemakers Guild
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    I can't remember how much I paid for my Kaowool and coating but was probably in the region of $80 - $100 (10 years ago). But that gave me enough to make 3 forges.
    These refractory materials have some pretty interesting properties so they don't come cheap.
    Try Home - Artisan Supplies an see what they have.

    Don't worry how the outside looks because once you look into the glowing orange maw of your new forge you will be forever transfixed...

  5. #15
    Registered Member Danil's Avatar
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    I couldn't find anything at artisan supplies. When you said you paid $80 - $100 was that for both the kaowool and coating or just the coating, because the ceramic fibre I'm thinking of getting is $126.50 alone. Ceramic Fibre Insulation [7ISO25128] - $126.50 : Field Furnace Refractories Pty Ltd, Suppliers of Wood Fired Pizza Ovens, Fire Bricks, Fire Tiles, Castables and Furnace Linings.
    Anyway I can ask the company that sells the ceramic coating how much their rigidizer is but if their ceramic coating was overpriced (if it actually is) then the rigidizer could be a bit expensive too.

  6. #16
    Registered Member Danil's Avatar
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    Reckon this stuff is for real, because if it is it has free shipping so I'm thinking of getting it instead of the other stuff.Fire brick ceramic fibre insulation blanket 7.32mt x 25mm pizza oven fireplace | eBay
    The seller has 99% positive feedback.

  7. #17
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    I bought my Isowool from Kilns West in Perth. I bought the wool, rigidiser(2ltr) and coating(2kg of zircoat) for not more than $100(I think). It was a long time ago.
    I'm pretty sure I got a very good deal because I got some half used stock that they were part way through. I think they were trying to clear stuff out because they moved location pretty soon after that.

    This stuff 'aint cheap but in the context of what it does, it's worth it.
    The roll you are looking at is probably enough to build 4 or 5 forges - but they probably don't want to sell you the 1/4 of the roll that you actually need!
    You could try asking for a smaller amount. What's the worst they could say?

  8. #18
    Registered Member Danil's Avatar
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    I am willing to pay the full amount for the one from eBay because the shipping is free and I will want to make a forge for smaller knives as well and maybe even a bigger one for swords. But it seems like the rigidizer and ceramic coating will be the most expensive stuff and there are so few suppliers for it. I think the cost of the rigidizer and ceramic coating is more than double the cost of the Isowool not including shipping!
    Ah well at least I will be able to make a few forges. Maybe I could sell some if I have enough materials leftover.
    Last edited by Danil; 01-03-2017 at 06:07.

  9. #19
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    Forges do need to be relined periodically. It's not like there is a use by date on the stuff.

  10. #20
    Registered Member Danil's Avatar
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    I may have been a bit over enthusiastic at the start and cut the forge entrance a bit big. The diameter is about 19 cm and I'm thinking it may take to long to heat up and be a bit inefficient. Any thoughts about this?

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