caulking removal

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  1. J

    Removing High Temp Caulk Residue

    I bought a Hearthstone Lincoln about a month ago in great condition, except the previous owner applied (what appeared to be) high-temp red RTV silicone around the caste iron flue collar. I’ve removed nearly all visible RTV, but some residue/discoloration remains in the cast iron. When the stove...
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