Impco's CastSeal brush-on methacrylate compound seals porosity in cast-iron parts

CastSeal is a brush-on methacrylate compound formulated for sealing porosity in cast-iron parts that will contain gases under pressure or liquids. After CastSeal has cured in the porosity or voids, excess material on the surface can be rinsed away with water. CastSeal is engineered not to alter critical surface dimensions. Mixing the sealant’s two components creates a VOC-free, low-viscosity, pale-blue liquid that can be applied by brush. Cured CastSeal forms a pressure-tight mass that is designed to withstand continuous service temperatures of up to 179° C (355° F). Parts treated with CastSeal are engineered to be leak-free at 150 psi. Cured CastSeal has a typical hardness of 95 Shore D (ASTM D2240) and exhibits resistance to a range of chemicals, including oils, glycol, chlorinated and fluorinated solvents, mild caustics, acid solutions and water.

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