refractory

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  1. P

    Can I use castable refractory cement to repair a metal part?

    I have a Waterford Erin (e) woodstove from 1988. The inside back plate has burned through and there is a significant hole in it now. Unfortunately the company doesn't make replacement parts for stoves this old, so I either have to repair it or get a whole new stove. I really love the stove, so...
  2. C

    Rebuilding Refractory Chamber?

    Howdy, I've been reading how some refractory chambers have to be rebuilt. They get damaged and won't seal around the combustor. Or squirrels ate it. I understand they are expensive to replace. I don't understand why they cannot be rebuilt, or built from scratch, using hi temp fiber board...
  3. L

    Cracks on Surface Mortar

    Hi, We have an industrial roaster. Recently, we were doing maintenance and after pulling out the drum we've noticed that the mortar we've applied along the surface of the walling have developed a lot of cracks. The super-duty air-set refractory mortar we used is 47.03% Aluminum Oxide. My...
  4. L

    Prevent Cracking of Air-Set Refractory Mortar along walling

    We have an industrial roaster. Recently we were changing the firebricks along the walling and noticed a lot of cracks with the air-set refractory mortar we applied on the surface of the walling. The brand we are using is 47.08% Aluminum Oxide based on the tech sheet. My question is if we should...
  5. M

    Vermont Castings 2in1 Refractory Cover

    I have a Defiant 2in1 built in about 2010 that has chronic problems with the refractory cover. After replacing several that cracked, the new one began falling out of place after two years of use. At $90 a piece I'm reluctant to buy a new one until I know why. Maybe the cover is worn down in size...
  6. Nofossil

    Source for High-temp firebrick splits

    I've turned a lot of refractory into gravel in my secondary combustion chamber over the years, and I've had a lot of trouble finding suppliers of high heat / high density firebrick. Because of the limited space in my secondary combustion, I need 'splits' - 1 1/4" thick bricks. For longevity, I...
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