OATEY 35610 Hercules® Gallon Regular Body Furnace Cement

The Hercules regular body furnace cement works on oil, gas, coal, and wood burning heating equipment. That covers sealing joints and cracks on furnaces, boilers, and stoves across fuel types, so one pail handles a mixed building. Once cured it will not shrink, crack, or crumble.

No asbestos, no oils, and no silicon dioxide. The Clean 'n Friendly formulation meets or exceeds the OSHA requirement for minimal silica content, which is the answer facility and MRO buyers usually need before a product goes on a maintenance cart.

Uncured Hercules furnace cement has a freeze point below +10 degrees F, so it tolerates cold storage down to that point before the wet material is at risk. Below that, bring it inside. Once it has cured in place the freeze point no longer applies.

Regular body is the pourable/trowelable consistency for filling and sealing furnace and stove joints, seams, and cracks where the material can settle into the gap. If you are working overhead or on a vertical seam where a thinner mix would sag, a heavy-body or high-temp stove cement is the better pick. For general oil, gas, coal, and wood burner patching, the 35610 regular body is the standard grab.

Black. That matters when you are patching a visible seam on a stove or flue collar, since it blends with cast iron and stove pipe rather than leaving a light-colored line.

The 35610 gallon pail is listed at 17.363 lb with a volume of 0.307. It is a single-hand carry for a service tech, and heavy enough that a case of them on a van shelf needs securing.

Order Oatey Hercules model 35610, a one gallon pail of regular body furnace cement. There is a single configuration, so no size or color to specify on the PO.