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  • Filler Block Sealant

    Can anyone tell me what people are using now to attach a filler block to a 20H block? I'm putting a cornpopper together and wanted to see what's out there for a sealant.

  • #2

    Re: Filler Block Sealant

    I use high temp RTV blue. Just be sure to remove any extra that squeezes out into the exhaust passages

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    • #3

      Re: Filler Block Sealant

      Why not the red high temp. I know color doesn't matter but is there a reason to use blue over red
      David Everhart S52
      David Everhart S52
      Avatar credit - F. Pierce Williams

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      • #4

        Re: Filler Block Sealant

        The color is the temperature rating indicator. The Permatex Gold RTV is the highest, blue - red - gold. When filling a large space put it in in stages, maybe a 1/2 inch at a time. Glob it all in at once and it may never cure in the center.



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        • cpizze1
          cpizze1 commented
          Editing a comment
          Thanks guys for the help!
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