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Old 08-21-2018, 11:50 AM
David Russell David Russell is online now
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Rigidizer vs refrasil

Is there any reason(s) that a rigidizer should not be used on the top of a moly to cover the exposed frax? Refrasil blanket is not so easily obtained in a small quantity as another thread made clear. Thanks to all for any input.
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Old 08-21-2018, 12:11 PM
Eric Trulson Eric Trulson is offline
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It would be better than nothing, but rigidizer doesn't really stop dusting the same way a solid weave of fabric or sheet metal does.

I've never gone this route myself, but I bet welding blanket would work as a furnace topper. Cheap, and readily available online and in welding supply/big box stores.

The fiberglass ones are good up to ~1000F for continuous operation, and there are blankets made from other materials that are rated higher. As long as you keep it an inch or two away from passage bricks or any other potential flues on the furnace top, it should be fine.
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Old 08-21-2018, 12:35 PM
John Riepma John Riepma is offline
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For what it's worth, I use the rewettable canvas cloth shown in the link below. This is commonly used to encase the insulation wrapped over steam pipes.

http://www.buyinsulationproductstore...-pipe-lagging/

I get it from a supplier local to me, not the link shown, but it's really easy to work with and does not deteriorate over time. You place it on top of the frax, cut slits to form and overlap it on the sides and then spray it lightly with water until you can smooth it out with your hands.
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Old 08-21-2018, 02:31 PM
David Russell David Russell is online now
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Thank you Eric and John
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Old 08-21-2018, 05:59 PM
Cecil McKenzie Cecil McKenzie is offline
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If kept away from element leads aluminum feel might work.
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Old 08-21-2018, 06:21 PM
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Pete VanderLaan Pete VanderLaan is offline
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What is "feel"
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Old 08-21-2018, 06:27 PM
Eben Horton Eben Horton is online now
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Quote:
Originally Posted by Pete VanderLaan View Post
What is "feel"
He means..... https://www.youtube.com/watch?v=urglg3WimHA
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Old 08-21-2018, 06:31 PM
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well, the point is to keep the dust down from fiber. Simple as that and it's well worth doing in any shop with outside help. I do like refrasil and forming it with water, but all would do this job. k
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Old 08-21-2018, 07:08 PM
Lawrence Duckworth Lawrence Duckworth is offline
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David I used a welding blanket. I used a heavy 1200f and itís held up well except for the color fading....however, the older it gets the more I worry it might burst into flames. I think the other stuff has proven to hold up...
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Old 08-21-2018, 07:16 PM
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Pete VanderLaan Pete VanderLaan is offline
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what combustible is in it that would "burst into Flames" ?
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Old 08-21-2018, 07:30 PM
Lawrence Duckworth Lawrence Duckworth is offline
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Actually I was hoping you could answer if the blanket would hold up over time, I donít know too much about the product, the material looks like canvas. I imagine itís treated with a fire retardant or something but the color fade concerns me that something else might be fading too....
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Old 08-22-2018, 05:27 PM
Steve Stadelman Steve Stadelman is offline
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I used the product John Reipma linked to in the OEM. Itís easy.
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Old 08-22-2018, 06:25 PM
Max Epstein Max Epstein is offline
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Quote:
Originally Posted by Eben Horton View Post
Hoping you were going with this one

https://www.youtube.com/watch?v=MmZexg8sxyk
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Old 08-22-2018, 08:24 PM
Eben Horton Eben Horton is online now
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Quote:
Originally Posted by Max Epstein View Post
Hoping you were going with this one

https://www.youtube.com/watch?v=MmZexg8sxyk
thats a moray!
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Old 08-23-2018, 07:33 AM
David Russell David Russell is online now
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Thanks for the input everyone. I am going to try the product John and Steve recommend.
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Old 08-27-2018, 04:38 PM
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Joe Pfeifer Joe Pfeifer is offline
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I have refrasil in stock. Can cut to any length you want.
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Old 08-27-2018, 06:03 PM
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Pete VanderLaan Pete VanderLaan is offline
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price it Joe.
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