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Tried using a ceramic fiber blanket for a riser sleeve instead of our usual sand mix

The blanket just didn't hold up under the heat like the sand does, and we ended up with a scrapped 200 lb casting. Anyone else tried this and had a different result?
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3 Comments
taylor.brooke
taylor.brooke15d agoMost Upvoted
Sometimes the old way is the only way that works...
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viola_garcia56
But what if the old way is just the one we're used to? New problems need new answers, not just the same old fix. Sticking with what's familiar can stop us from finding something that works even better. It feels safe, sure, but safe isn't always right.
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johnson.eva
Ever try using those insulating fire bricks for a backup? We got talked into it once and had the same mess, lost a whole pallet of smaller castings before lunch. The theory sounds good but the practice is a total fail, some things just need the mass and stability of sand. It feels like chasing a cheap fix for a problem that doesn't exist.
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