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Supprise(?) Kaowool Supplier And Possible Ridgidizer.

Discussion in 'Forges, Ovens, Kilns, & Salt Pots' started by IamSteve-O, Dec 10, 2017.

  1. IamSteve-O

    IamSteve-O New Member

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    Hey this may be common knowledge but I was pleasantly surprised today to see kaowool at rona. It was by the heating duct stuff.

    https://www.rona.ca/en/insulating-ceramic-wool-p1243093

    I only do stock removal knives so far so my 2 brick forge has sufficed for heat treating. I have been holding on to an old propaine tank and I stole the pressure regulator off an old bbq. Basically have been slowly acquiring the parts for a real forge. Seeing the the wool at rona today got my mind going and then further down on the same shelf I saw this.

    http://www.imperialgroup.ca/stove_maintenanceproducts.cfm?c=322

    In the msds it lists Alumina Silicate and Portland cement. I recognized Alumina Silicate in regards to using borax but can't remember if that's what you want or if that's the stuff that borax eats. Seems too easy but maybe somebody with more experience can chime in?
     
  2. FORGE

    FORGE Maker of the Year Best Knife

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    It might be at Rona but I would double check and find out the temperature rating of the product.
    I use product rated at 2500 and 1 inch wool rated at 3000 deg. F
    The Imperial cement will work for a while but it is nearly impossible to spread on the wool and will deteriorate after while with the borax.
    I don't know how many times I have said this BUT USE VESUVIUS SUPER 3000 ....... 2 coats on the wool and it will nearly last forever unless you stick a piece of steel through it.
     
  3. IamSteve-O

    IamSteve-O New Member

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    The super 3000 is an alumina silicate based cement as well right? Is there some other ingredients that make it stand up to the borax better then the imperial brand? Or is that just a superior quality brand and like comparing a Hyundai to a Cadillac?
     
  4. FORGE

    FORGE Maker of the Year Best Knife

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    Do a Google search for Vesuvius Super 3000 and it has all the specifications you ever wanted to know about it.
     
  5. oiler20

    oiler20 New Member

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    I used the imperial cement for my forge, I had to water it down to be able to apply it on to the wool. I would not recommend using the imperial cement as it is very brittle and cracks eventually from use, it is a pain to keep filling in the cracks especially since this stuff has a shelf life and dries out rather quickly once opened. If I built another forge I would use something else like the Vesuvius super 3000.
    -Thomas
     
  6. IamSteve-O

    IamSteve-O New Member

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    I got the dry mix stuff so I can choose my own consistency and so that shelf life is not an issue. Though fixing cracks constantly doesn't sound like a good time.

    Reading the msds of both products it's seems that the super 3000 has fused silica and sodium silicate but it also has more alumina silicate. The imperial brand has Portland cement instead of 30% or so more alumina silicate. I imagine the cement is what makes it crack so easy but I'll have to do more digging to see if the borax is repelled by the extra aluminum silicate or if the other ingredients are what protects the kaowool.
     

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